I am looking for what are normal temps for
Oil
Coolant
Trans

Not only the normal but what is the high side. At what temp for each should you worry?

Thanks

 

Well, I'm not sure what's "normal", but I can give you my observations from a recent trip...
'06 F-250 6.0 PSD, 24K miles, Edge Insight gauges, no other mods. It was a trip from PA to SC in May down I-83. At highway speeds, ambient temperature in the upper 80's I had the following, towing a 30 foot 5th wheel camper weighing about 11K pounds:

Engine coolant 190 to 200
Engine oil 195 to 220
Transmission 150 to 170
Post turbo EGT maxed out at about 700*

Got close to the magical 15 degree difference between EOT and ECT, but never exceeded it.

 

Thanks for the response. I am wondering what the "max" that these temps should be before starting to worry. Anyone got any ideas?

 

<TABLE style="WIDTH: 363pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=485 x:str><COLGROUP><COL style="WIDTH: 90pt; mso-width-source: userset; mso-width-alt: 4256" width=120><COL style="WIDTH: 52pt; mso-width-source: userset; mso-width-alt: 2464" width=70><COL style="WIDTH: 68pt; mso-width-source: userset; mso-width-alt: 3200" width=91><COL style="WIDTH: 153pt; mso-width-source: userset; mso-width-alt: 7200" width=204><TBODY><TR style="HEIGHT: 12.75pt; mso-height-source: userset" height=16><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 142pt; HEIGHT: 12.75pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8; mso-ignore: colspan" class=xl27 height=16 width=190 colSpan=2>STOCK READINGS</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 68pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 width=91></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 153pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 width=204></TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 height=17></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl28>Normal</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 68pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl29 width=91>Severe Service</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl28>Alarm</TD></TR><TR style="HEIGHT: 10.2pt; mso-height-source: userset" height=14><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 10.2pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=14>Tranny Temp</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26>150 - 195</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26>195 - 200</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>220</TD></TR><TR style="HEIGHT: 14.95pt; mso-height-source: userset" height=20><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 14.95pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=20>Coolant Temp</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26>190 - 200</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26>200 - 215</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>215+</TD></TR><TR style="HEIGHT: 15.65pt; mso-height-source: userset" height=21><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 15.65pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=21>Fuel Press</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'60 - 50">60 - 50</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'50 - 45">50 - 45</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>45</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>EGT - pre Turbo</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'650 - 1200">650 - 1200</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'1200 - 1250">1200 - 1250</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>1300</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26></TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>EGT - post Turbo</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>700</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>900</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>1000</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>Boost</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'0 - 26">0 - 26</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'27 - 28">27 - 28</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>28</TD></TR><TR style="HEIGHT: 17pt" height=23><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 17pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=23>Oil Temp</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'200 - 220">200 - 215</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'215 - 230">215 - 230</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>230+</TD></TR></TBODY></TABLE>

<TABLE style="WIDTH: 262pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=350 x:str><COLGROUP><COL style="WIDTH: 90pt; mso-width-source: userset; mso-width-alt: 4256" width=120><COL style="WIDTH: 52pt; mso-width-source: userset; mso-width-alt: 2464" width=70><COL style="WIDTH: 68pt; mso-width-source: userset; mso-width-alt: 3200" width=91><COL style="WIDTH: 52pt; mso-width-source: userset; mso-width-alt: 2432" width=69><TBODY><TR style="HEIGHT: 13.6pt" height=18><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 142pt; HEIGHT: 13.6pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8; mso-ignore: colspan" class=xl27 height=18 width=190 colSpan=2>READINGS WITH TUNERS</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 68pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 width=91></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 52pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl24 width=69></TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 height=17></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl28>Normal</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; WIDTH: 68pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl29 width=91>Severe Service</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl28>Alarm</TD></TR><TR style="HEIGHT: 9.55pt; mso-height-source: userset" height=13><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 9.55pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=13>Tranny Temp</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'150 - 195">150 - 195</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26>195 - 220</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>230</TD></TR><TR style="HEIGHT: 19.05pt; mso-height-source: userset" height=25><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 19.05pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=25>Coolant Temp</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'190 - 215">190 - 215</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'215 - 220">215 - 220</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>220+</TD></TR><TR style="HEIGHT: 16.3pt; mso-height-source: userset" height=22><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 16.3pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=22>Fuel Press</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'60 - 50">60 - 50</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'50 - 45">50 - 45</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>45</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>EGT - pre Turbo</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'650 - 1200">650 - 1200</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'1200 - 1250">1200 - 1300</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>1300</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>EGT - post Turbo</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>700</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>900</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>1000</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>Boost</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'0 - 26">0 - 26</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'27 - 30">27 - 30</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>30+</TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26></TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26></TD></TR><TR style="HEIGHT: 12.9pt" height=17><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; HEIGHT: 12.9pt; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl25 height=17>Oil Temp</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'220 - 230">200 - 230</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:str="'230 - 235">230 - 235</TD><TD style="BORDER-BOTTOM: #d4d0c8; BORDER-LEFT: #d4d0c8; BACKGROUND-COLOR: transparent; BORDER-TOP: #d4d0c8; BORDER-RIGHT: #d4d0c8" class=xl26 x:num>235+</TD></TR></TBODY></TABLE>

 

Hey Bismic are these temps that Ford lists?

 

Not quite ........ I should have added some explanation to the post.

Some time ago I developed these by asking folks on the forum. I asked both Techs and "gearheads" that were heavy into mods. I then compiled the input ALONG WITH some Ford information.

For example: Tranny Temp
As for the "Factory" transmission temp gauge, it is a glorified "idiot" light as its response is severely dampened. The panel gauge will show the temp as fully warmed up at 50 *F. Between 100-220F the needle will remain in the same position on the gauge. At 230F it will move up slightly to the middle of the normal range. At 250F it will move to Yellow. The gage moves to red at 280. This is supported on page 36 of the OBDII Theory and Operations manual. The tow/haul light will flash at 275.
Over 220 is really too hot for continuous service IMO - most likely something is not right when you see temps continuously this high. Never exceed 250 for more than 30 minutes for reasons below.
Mark Kovalsky (former Ford tranny engineer) says the fluid can get to 300 for a SHORT time w/o any seal damage (however a measured temp of 250 could actually mean that some areas and parts may already be as high as 300 - normal tranny fluid is good to 300 or so, but your tranny isn't!).

Also: Fuel Pressure
Ford does state that you definitely should not let your fuel pressure get below 45 psig - ever (even at WOT). They also say that 75 psig is the upper limit based on o-ring integrity in the injectors. Generally the right side injectors (passenger side) are the first to fail from lack of fuel pressure. Fuel MUST act as a buffer for the injector plunger. The suction pressure loss to the HFCM should be no more than 6 inches of vacuum.

Also: Coolant Temp
Some say fan kicks on at 210, some say 215, others say 220. Full explanation: Engine temperature is not the only parameter that the PCM monitors to determine cooling fan operation. This is the reason that you will see some variation in engine temperature as it correlates to fan operation. The operation/description of the FSS (Fan Speed Sensor) from the PC/ED manual has a fairly good explanation as to how the system "thinks". This is not your traditional engine hits temp X and the fan clutch locks up. The fan speed sensor is a Hall-Effect sensor integral to the vistronic drive fan (VDF). The powertrain control module (PCM) will monitor sensor inputs and control the VDF speed based upon engine coolant temperature (ECT), transmission fluid temperature (TFT) and intake air temperature (IAT) requirements. When an increase in fan speed for vehicle cooling is requested, the PCM will monitor the FSS signal and output the required pulse width modulated (PWM) signal to a fluid port valve within the VDF. Engine begins to defuel at 221 deg. The thermostat begins to open at about 190*F to 195*F and is not fully open until about 215*F to 219*F..

Also: Oil Temperature
Usually 5-15 deg above coolant temp. Engine begins to defuel at 253 *F oil temp (PC/ED manual). You should not exceed the ECT by more than 15 degrees.

So - The readings are based somewhat on opinions, somewhat on Ford values. People COULD argue that 220 and 230 are too conservative as alarm temps for the transmission. I couldn't really disagree too much, but I will say that for many transmissions, these alarm values are good. Most folks I talk to say their transmission runs way cooler than these alarm temps. IMO alarms should be set to inform you that something is not normal BEFORE you get into a danger zone. Also, some people with tuners and studs say 1400 - 1500 EGT MAY be OK for VERY SHORT bursts - I wouldn't want to do it. Lastly, BOOST values depend heavily on aftermarket mods like studs, turbo and tuners. It is really very hard to define a set of readings that apply to everyone. I know some people running at 40 psig boost w/ studs though and they do not seem to be worried. Even with studs, this would make me nervous.

As always, opinions and discussion over these are more than welcome.

 

Also -

The minimum engine oil pressure (low pressure oil) specifications are 82.7 kPa (12 psi) at 700 rpm, 165.5 kPa (24 psi) at 1,200 rpm and 310.3 kPa (45 psi) at 1,800 rpm with the engine at operating temperature. Low or no pressure could be caused by the oil pressure regulator, gerotor oil pump or an internal lube oil pressure leak. The engine will not start until the PCM reads 500 psi from the ICP (High Pressure Oil). The HPO pressure will range from 625 psi at idle and 4045 max psi with full engine load. a fast idle with no load will be about 1450 psi. This can be checked via the ICP sensor port.

The oil pressure sensor is just a switch that sends a signal to the instrument panel gauge. It closes a circuit to ground when the oil pressure reaches 5-7 psig. When the pressure is above 7 psig, the gauge will read normal. When it drops below 6 psig, it will read zero. The info from the switch does not feed back to the PCM in any way. The oil pressure regulator opens at pressure of 75 psig to send flow back to the pump suction.

Degas cap rated for 12 - 18 psig. Over 18 psig indicates possible headgasket leak.

For the EGT POST TURBO - this is based on cooling down after a heavy engine load before shutting the engine down (heat saturation on the turbo is the issue): Some people say that you should run the engine unloaded until post turbo EGT drops to 400 deg F .... then shutdown. Some people say the value is 450. You definitely should not TOW HEAVY and just pull into a fuel statiuon or motel immediately off the highway and shutdown.

 

Great two posts. Tried to Rep you but was told I needed to spread the wealth.

 

Thanks for the GREAT info. I am having some issues and will be taking my truck in to most likely get the head gaskets replaced. Thing is I don't have my truck right now as I am stationed in Hawaii. I will be transfering to Florida soon and will be picking up my truck from my dad in Idaho. He used it this weekend to haul his toy hauler and said the coolant temp got to 230 on my Banks PowerPDA. He has been driving my truck since 07 when I came out here and leaves my setting on 1 and I know he doesn't drive the truck like he stole it. If anything he baby's it. I do have another question though. If I replace the gaskets, I am most likely going to buy some gaskets. Which ones do you think are the best ones to get? Also should I also get studs or will the upgraded gaskets be good enough. I never get any white smoke, the truck runs great, and it doesn't seem to really overheat. I have hit 230 and had some higher EOT a couple of times while I was there but only while pulling the trailer up hills. As soon as I backed off it came right back down. I do get the degas bottle puking every now and then though also. This is what leads me to believe I have a blown head gasket. I wonder if I might have an EGR cooler issue though. What are y'all's thoughts on that? Think I still have a blown head gasket?

Meant to add that I also have a greyish oily substance in the degas bottle also.

 

Thanks for the reps Navypowerstroker (and you too Mike - for the attempt!).

I would not say that you necessarily had a bad head gasket (root cause really is weak bolts). There are quite a few reasons why you could have high coolant temps. Couple ths with puking and it may narrow some of them down a bit tough.

I would first advise you to pull your EGR valve after a drive (getting it up to temp). Park it on a "decline" and see if you have coolant under the valve.

You can also get a test kit from NAPA that checks for combustion gasses - use it on your degas bottle.

What year model truck do you have (sorry if I missed it)? Some early model trucks have a weak design for a water pump.

Have you made sure all the fins are clean on your radiator and coolers?

Do yourself a favor and tackle it soon - excessive heat is a KILLER.

Oh - BTW - I like the stock head gaskets. Absolutely nothing wrong w/ them up to some very healthy horsepower.

 

It is a 2004 F-350. All that I have done to it is in my sig. I edited my last post also to mention that I do have the oily substance gray in color in the degas bottle. The problem is, I am not where I can mess with the truck. I am telling my dad what to do as I go here. I will tell him to get the kit from Napa then and try that out. I know all hte fins are clean on the radiator and coolers. I also want to ensure that this gets resolved very soon as I said I am moving to Florida and I will pick up my truck in Idaho and drive it down there. Will the degas bottle puke if I have egr or oil cooler problems? What should I tackle first, next step after that, and so on? If it comes down to the head gaskets would you recommend getting some ARP studs and just use the stock head gaskets. Also I am assuming that my warranty won't cover it since it has a tuner but do you know if the extended warranty that I bought will cover it?

 

Wow - if you didn't just add the signature, then I am embarrassed.

A blown EGR cooler can cause puking, but you usually get white exhaust also. Pull the EGR valve and check for coolant under it.

A blown oil cooler will put oil in the coolant. It usually looks like a chocolate milkshake though - not really gray color stuff (at least not from what I am familiar with). If you are into it to rebuild the oil cooler then install a bulletproof EGR cooler OR just delete it all together.

ARP studs and stock head gaskets are fine IMO.

Not sure about the extended warranty.

2004 was a transition year. Early 04's had the water pump issues. Late (after September 2003 production) got an upgrade. You can easily tell the difference in model years by looking to see if your ICP sensor is on the passenger valve cover or not.

 

Haha. No that sig has been there since I started coming on here early 05. LOL. I guess it really is a milk shake like color, been a little while since I have been up there. I usually go home to elk hunt every year so that is when I have seen it last. If I remember correctly I have a later build. I think early 04 if I am correct. So I will have my dad get this test kit from NAPA. This will then tell me for sure if the gasket is blown correct? However it won't neccessarily prove it isn't though? Is there something on here that I can save and send to my dad to pull the egr valve? If there is coolant under there, is that caused by HG? Thank you so much for the help, I really appreciate it.

 

Mark has you covered on every thing else and in greater detail then I could. I wanted to weigh in on the above quote, because I see people asking about a/m gaskets all the time.

The stock gaskets aren't the problem. These aren't the gaskets that are in the 02-04 Mustangs that had the thin passenger side gaskets. I have more times then I care to admit to seen 51 psi of boost(one time blew the downpipe off the turbo) and my stock gaskets are holding. They will serve you will providing that the ARPs are installed correctly and you don't have head issues.

 

Navypowerstroker - From what I have read you are correct. If you detect combustion gasses, it is very likely to be head gaskets. If you don't, it still MIGHT be head gaskets.

Coolant under the EGR valve is indicative of a bad EGR cooler, not head gaskets. Be sure to smell any liquid under the EGR cooler as you can also have some unburnt diesel there.

Poor coolant maintenance can plug up the oil cooler, cause the EGR cooler to fail, and then cause head gaskets to be stressed and fail (as well as cause engine hydrolocking).

What many people do not understand is that it can also work in reverse. A leaking head gasket can get combustion gasses in the coolant. This can cause silicates to precipitate out (sand like particles). These can plug the oil cooler and than cause the EGR cooler to fail, and then etc.

It is all a vicious circle.

Key message - be meticulous about coolant maintenance. Flush every 50k and use Motorcraft Premium Gold or Zerex G05. Use distilled water ONLY for dilution. I have also been hearing more and more good stuff about the International ELC coolant. I just don't have the nerve to try it yet.