water temp. gauge sending unit?
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 291
Likes: 1
water temp. gauge sending unit?
Where would you put the sending unit to an aftermarket water temp. gauge? DO you have to drill a hole for it somewhere? Even the electronic gauges have a threaded sending unit that needs to touch the coolant somewhere. Any ideas? Thanks.
Posting Guru
Joined: Sep 2004
Posts: 1,393
Likes: 2
Originally Posted by ejpreston
Where would you put the sending unit to an aftermarket water temp. gauge? DO you have to drill a hole for it somewhere? Even the electronic gauges have a threaded sending unit that needs to touch the coolant somewhere. Any ideas? Thanks.
You could use any of the electronic temp gauges and 'borrow' the signal from the factory sender.
Not sure where a plug is on the head for an old style gauge. For best accuracy you want to find a place on the head, not the block.
Chris
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 291
Likes: 1
Yeah, but the stock temp. gauge doesn';t show smaller changes. I plan on getting a e-fan set-up and want to have solid readings to make sure the temp. stays the same with the new fans as it does now. YOu think using the stock sensor will work for a new electronic gauge as well? Same parameters?
Posting Guru
Joined: Sep 2004
Posts: 1,393
Likes: 2
Originally Posted by ejpreston
Yeah, but the stock temp. gauge doesn';t show smaller changes. I plan on getting a e-fan set-up and want to have solid readings to make sure the temp. stays the same with the new fans as it does now. YOu think using the stock sensor will work for a new electronic gauge as well? Same parameters?
A Scangauge will show you the temp degree by degree, so the information is in there in an exact fashion. My truck runs between 195-200 at all times, even climbing in 115 degree heat, so if you note the exact place your gauge is at at normal, you can assume that is 200, and go from there. Or you can get a solid state temp gauge, and lay the probe where you like.
Just thought of it, the built in diagnostic gives exact tempurature, in decimal readout. For calibrating a set of fans that would be a free, easy way to do it.
I will look for the 'set method' to get your information panel to read out, and post.
Chris
Posting Guru
Joined: Sep 2004
Posts: 1,393
Likes: 2
I borrowed this post from another forum, Thanks to jpdadeo
You can enter this setup at startup and then cycle to the temp. It's not needed all the time, but great for test purposes.
dEGC is the one you want.
Source: Helms manual
Activating Test Mode
To enter the HEC Dealer test mode, depress and hold the instrument cluster SELECT/RESET button, turn the ignition switch to the RUN position, and then continue pressing the SELECT/RESET button (5 seconds) until tESt is displayed in the odometer. The SELECT/RESET button must be released within 3 seconds of the odometer tESt display to begin the dealer test mode.
Depress the SELECT/RESET button to advance through the following steps until dtc is displayed. Depressing the SELECT/RESET button will display any stored continuous DTCs before proceeding to the next step.
Odometer Display Description
GAGE Activates gauge sweep of all gauges, then displays present gauge values. Also carries out the checksum tests on ROM and EE. If the gauge sweep is inoperative, INSTALL a new instrument cluster.
All segments illuminated Illuminates all odometer segments. If any odometer segment is inoperative INSTALL a new instrument cluster.
bulb Illuminates all micro-controlled indicators and LEDs. Install a new indicator or LED as necessary.
r Returns to normal operation of all micro-controlled indicators and LEDs and displays hexadecimal value for ROM level. (used when requesting assistance from the hotline). If alternating flashes for FAIL and ROM level are displayed, INSTALL a new instrument cluster.
EE Displays the hexadecimal value for EE level (used when requesting assistance from hotline). If alternating flashes of FAIL and EE level are displayed replace instrument cluster.
dt Displays hexadecimal coding of final manufacturing test date (used when requesting assistance from hotline).
dtc Displays continuous DTC's in hexadecimal format. Pressing the SELECT/RESET button will display any DTCs stored before proceeding to the next step.
enG Displays the English speed in MPH. Speedometer will indicate present speed within tolerances. Display will show 0 if input in not received. If input is invalid for one second or more, or if speed is 0.
m Displays the metric speed data in kph. Speedometer will indicate present speed within tolerances. Display will show 0 if input in not received. If input is invalid for one second or more, or if speed is 0.
tAc Displays the tachometer data received from the PCM via the SCP network within tolerances. Tachometer will indicate present RPM. Display will show 0 if input is no received, if input received is invalid for one second or more, or if engine RPM is 0.
FUEL Displays the code (0-255) for the fuel sender input to the HEC. The fuel gauge will display a filtered fuel level value. This filter will keep the pointer from moving suddenly or erratically. 255 open send +/- 0
232 full stop +/- 0
215 Full mark +/- 10
178 3/4 mark +/- 8
138 1/2 mark +/- 7
93 1/4 mark +/- 5
41 E mark +/- 4
54 Low Fuel (0-59)
0-18 short (0-20 max)
OIL Displays the code (0-250) for the oil pressure switch input to the HEC. Oil pressure gauge will indicate present oil pressure. Normal oil pressure (greater than 6psi) will display a value between 000 and 176. A low oil pressure or an inoperative engine oil pressure switch (less than 6 psi) will display a value greater than 176.
dEGC Display of engine temperature in Degrees C input from cylinder head temperature sensor. 49 C "C" mark
60 C Normal band start
120 C Normal band end
-40 C No SCP message for 5 seconds
bAtt Displays the code (0-255) for the battery voltage input to the HEC. Battery voltage gauge will indicate present battery voltage. 93-102 6.2-9.1 volts, low voltage
115-124 8.5-10.7 volts, Normal band start
215-225 15.8-18 volts, Norm band end
230-241 16.9-19.1 volts, high voltage
rhEo Displays the present decimal rheostat dimming input, 0-255 (used when requesting assistance from the hotline)
rhi
rhS
rho Not used.
Cr Displays the current RUN/START sense input. Display will show -h for high input with the ignition switch in the START position and -L for low input with the ignition switch in the RUN position.
PA-PE7 not used.
GAGE Repeats the display cycle
<!-- / message --><!-- sig -->
You can enter this setup at startup and then cycle to the temp. It's not needed all the time, but great for test purposes.
dEGC is the one you want.
Source: Helms manual
Activating Test Mode
To enter the HEC Dealer test mode, depress and hold the instrument cluster SELECT/RESET button, turn the ignition switch to the RUN position, and then continue pressing the SELECT/RESET button (5 seconds) until tESt is displayed in the odometer. The SELECT/RESET button must be released within 3 seconds of the odometer tESt display to begin the dealer test mode.
Depress the SELECT/RESET button to advance through the following steps until dtc is displayed. Depressing the SELECT/RESET button will display any stored continuous DTCs before proceeding to the next step.
Odometer Display Description
GAGE Activates gauge sweep of all gauges, then displays present gauge values. Also carries out the checksum tests on ROM and EE. If the gauge sweep is inoperative, INSTALL a new instrument cluster.
All segments illuminated Illuminates all odometer segments. If any odometer segment is inoperative INSTALL a new instrument cluster.
bulb Illuminates all micro-controlled indicators and LEDs. Install a new indicator or LED as necessary.
r Returns to normal operation of all micro-controlled indicators and LEDs and displays hexadecimal value for ROM level. (used when requesting assistance from the hotline). If alternating flashes for FAIL and ROM level are displayed, INSTALL a new instrument cluster.
EE Displays the hexadecimal value for EE level (used when requesting assistance from hotline). If alternating flashes of FAIL and EE level are displayed replace instrument cluster.
dt Displays hexadecimal coding of final manufacturing test date (used when requesting assistance from hotline).
dtc Displays continuous DTC's in hexadecimal format. Pressing the SELECT/RESET button will display any DTCs stored before proceeding to the next step.
enG Displays the English speed in MPH. Speedometer will indicate present speed within tolerances. Display will show 0 if input in not received. If input is invalid for one second or more, or if speed is 0.
m Displays the metric speed data in kph. Speedometer will indicate present speed within tolerances. Display will show 0 if input in not received. If input is invalid for one second or more, or if speed is 0.
tAc Displays the tachometer data received from the PCM via the SCP network within tolerances. Tachometer will indicate present RPM. Display will show 0 if input is no received, if input received is invalid for one second or more, or if engine RPM is 0.
FUEL Displays the code (0-255) for the fuel sender input to the HEC. The fuel gauge will display a filtered fuel level value. This filter will keep the pointer from moving suddenly or erratically. 255 open send +/- 0
232 full stop +/- 0
215 Full mark +/- 10
178 3/4 mark +/- 8
138 1/2 mark +/- 7
93 1/4 mark +/- 5
41 E mark +/- 4
54 Low Fuel (0-59)
0-18 short (0-20 max)
OIL Displays the code (0-250) for the oil pressure switch input to the HEC. Oil pressure gauge will indicate present oil pressure. Normal oil pressure (greater than 6psi) will display a value between 000 and 176. A low oil pressure or an inoperative engine oil pressure switch (less than 6 psi) will display a value greater than 176.
dEGC Display of engine temperature in Degrees C input from cylinder head temperature sensor. 49 C "C" mark
60 C Normal band start
120 C Normal band end
-40 C No SCP message for 5 seconds
bAtt Displays the code (0-255) for the battery voltage input to the HEC. Battery voltage gauge will indicate present battery voltage. 93-102 6.2-9.1 volts, low voltage
115-124 8.5-10.7 volts, Normal band start
215-225 15.8-18 volts, Norm band end
230-241 16.9-19.1 volts, high voltage
rhEo Displays the present decimal rheostat dimming input, 0-255 (used when requesting assistance from the hotline)
rhi
rhS
rho Not used.
Cr Displays the current RUN/START sense input. Display will show -h for high input with the ignition switch in the START position and -L for low input with the ignition switch in the RUN position.
PA-PE7 not used.
GAGE Repeats the display cycle
<!-- / message --><!-- sig -->
Posting Guru
Joined: Sep 2004
Posts: 1,393
Likes: 2
Originally Posted by ejpreston
I knew you could get the tach that way, but I didn't kow you could get the temp as well. I'll give it a try. I wish Ford would have made good use of all that information to the driver!
Chris
Thread
Thread Starter
Forum
Replies
Last Post
fixit5561
1997 - 2006 Expedition & Navigator
2
Jun 29, 2010 06:18 PM
TommiFIN
1987 - 1996 F150 & Larger F-Series Trucks
9
Mar 4, 2007 05:06 AM
1982fordf100
Ford Inline Six, 200, 250, 4.9L / 300
16
May 8, 2006 08:11 AM
bitesomthing
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
1
Mar 25, 2005 11:07 PM
