Hello, looking for a few answers about the EGR valves. A friend mine has a 6.0. (I have a 7.3 myself) His truck started running roof. Dealer changed original EGR. (#2) EGR went bad and replaced after 2,000 miles,(#3) EGR was replaced by dealer after 500 miles. Currently he's on the #4 EGR with about 50 miles.

Any ides?

Thanks

 

Is the dealer checking the oil cooler when replacing the EGR cooler?

 

Sorry, I don't have a clue what the dealer checking. What would I need to look for? What the issue issue?

Thanks.

 

He said they are replacing the valve not the cooler.

 

<TABLE style="WIDTH: 674pt; BORDER-COLLAPSE: collapse" border=0 cellSpacing=0 cellPadding=0 width=899 x:str><COLGROUP><COL style="WIDTH: 674pt; mso-width-source: userset; mso-width-alt: 32877" width=899><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 12.75pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid" class=xl24 height=17 width=899>Causes of Coking (TSB 08-2-7); DETERMINE THE ROOT CAUSE:</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=34 width=899>Un-combusted fuel is usually evident as fuel scented white exhaust smoke. Un-combusted fuel may create coking which impairs system functionality eventually leading to black exhaust smoke/poorly combusted fuel.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 12.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl26 height=17 width=899></TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 12.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=17 width=899 x:str="'- Poor fuel - replace with good fuel and use a good fuel additive (Stanadyne Performance Formula or Ford PM-22-A or PM-23-A)">- Poor fuel - replace with good fuel and use a good fuel additive (Stanadyne Performance Formula or Ford PM-22-A or PM-23-A)</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 12.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=17 width=899 x:str="'- Excessive idling">- Excessive idling</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=34 width=899 x:str="'- Excessive fuel (note fuel pressure must be kept over 45 psig, to avoid injector damage). Check for DTC's, injector problems could cause excessive fuel flow.">- Excessive fuel (note fuel pressure must be kept over 45 psig, to avoid injector damage). Check for DTC's, injector problems could cause excessive fuel flow.</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=34 width=899 x:str="'- Engine oil: thickened engine oil and poor maintenance can delay commanded injector response, caused by wrong oil viscosity or excessive OCI.">- Engine oil: thickened engine oil and poor maintenance can delay commanded injector response, caused by wrong oil viscosity or excessive OCI.</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=34 width=899 x:str="'- Engine oil: oil carryover to air inlet system caused by restricted air filter element pulling in oil from ccv, high crankcase pressure, or turbo oil leak.">- Engine oil: oil carryover to air inlet system caused by restricted air filter element pulling in oil from ccv, high crankcase pressure, or turbo oil leak.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 12.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=17 width=899 x:str="'- Excessive EGR flow. Correct with newer flash or check for bad EGR valve and correct.">- Excessive EGR flow. Correct with newer flash or check for bad EGR valve and correct.</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 12.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl25 height=17 width=899 x:str="'- Delayed injection event caused by FICM wire chaffing, FICM calibration, or injector mechanical issues.">- Delayed injection event caused by FICM wire chaffing, FICM calibration, or injector mechanical issues.</TD></TR><TR style="HEIGHT: 15.75pt" height=21><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 15.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl27 height=21 width=899 x:str="'- The most recent calibration flash will help reduce coking deposit formation by improving:">- The recent calibration flash will help reduce coking deposit formation by improving:</TD></TR><TR style="HEIGHT: 12.75pt" height=17><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; HEIGHT: 12.75pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl28 height=17>Shut off EGR after 5 minutes of idling. Reduces the amount of hard to combust elements in the combustion chamber.</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl29 height=34 width=899 x:str="Injection timing improvements at 1100-1800 RPM (Typical range for PTO operation/Cold Ambient Protection Idle Kicker/Battery Charge Protect Idle Kicker). ">Injection timing improvements at 1100-1800 RPM (Typical range for PTO operation/Cold Ambient Protection Idle Kicker/Battery Charge Protect Idle Kicker). </TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl29 height=34 width=899>Increased exhaust pressure / VGT Duty Cycle for APCM or PTO commanded engine speeds. Maintains heat in the combustion chamber.</TD></TR><TR style="HEIGHT: 25.5pt" height=34><TD style="BORDER-BOTTOM: windowtext 0.5pt solid; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 25.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl29 height=34 width=899 x:str="Higher engine temperature required for cold ambient idle kicker to switch off. Idle will remain elevated until driver input is observed by powertrain control module (PCM). Maintains heat in the combustion chamber. ">Higher engine temperature required for cold ambient idle kicker to switch off. Idle will remain elevated until driver input is observed by powertrain control module (PCM). Maintains heat in the combustion chamber. </TD></TR><TR style="HEIGHT: 13.5pt" height=18><TD style="BORDER-BOTTOM: #ece9d8; BORDER-LEFT: windowtext 1pt solid; BACKGROUND-COLOR: transparent; WIDTH: 674pt; HEIGHT: 13.5pt; BORDER-TOP: windowtext; BORDER-RIGHT: windowtext 1pt solid" class=xl30 height=18 width=899 x:str="Improved EGR throttle plate self test. Better control of hard to combust elements. ">Improved EGR throttle plate self test. Better control of hard to combust elements. </TD></TR></TBODY></TABLE>

 

You need to tell us what year model and if he has any mods.

ALSO - Low system voltage can cause problems w/ the Fuel Injection Control Module and can cause poor combustion. Make sure your batteries are strong (load test individually).

What is your practice on fuel and oil filter changes? How long do you go and what filters do you use? What oil are you using? Is it in good shape (not thick and not a heavy fuel smell)?

 

Hey bkuuzz1, you need to give us much more detail such as year of truck, how many miles, any custom modifications, any special fluids added, etc. That is the only way we can help you. Otherwise we are all guessing and posting solutions that may not fit your problem.

 

Fellows thanks for the replies, Sorry I don't have the basic info that I knew you guys would need to help trouble shoot. All I know is it is a 6.0. I was asking the question to try and find out if that engine had a particular problem that would cause the issue with the EGR. Looks like it could be one of many. I'll let him know the issues you guys have posted and let him decide from her what he wants to do.

Thanks for all your help. It's time to go shoot some clays.

Thanks again.