service engine light
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
OK removed the valve cover: wiring is good and torque is good. Resistance is the same as I posted before. Service light returned, today after sitting a day or two, the battery ran down low and on the third try it started and the service light was out??? What would clear the light when all I did was try to start the truck with what I consider a low battery charge?
thanks
thanks
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
That P0236 can come back over and over, lighting up the CEL. Are you chipped? Have you noticed if the light fires when you do something very specific with your right foot?
Did you shop for an OBDII adapter yet? [LINK] For the price of one single computer hook-up at the dealership, your smartphone, tablet, or PC can check the codes as frequently as you want - and help you troubleshoot the truck. With my OBDII adapter, I have many apps on my tablet and PC that allow me to conduct all the tests the members here have mentioned - plus I can monitor all the sensors on the truck.
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New User
Joined: Nov 2015
Posts: 15
Likes: 0
service engne light
Recap:
1.Check from dealer: P0683 GPCM, P0670 & P01670 EF open circuit
2. changed fuel & oil filter with fluid
3. Plug intake air heater
4.Checked resistance driver side all look OK
5. Replaced steering gear box
6. Replaced ball joints
7. Replaced front and rear shock
8. removed the driver side valve cover and checked the connection, torque and wire harness. Looks Ok.
This is a 2wd drive excursion.
Ordered a Snap on mtg2500 with program inserts and the 2001 Ford trouble with 1999 com cartridge.
Checked 1/2/16 and had the following codes: P1000 battery, P0603 fuse, P0541 air heater which is now plugged, P0676 #6 glow plug, P0683 GPCM.
Glow plug test P0541 and P0676
Buzz test no codes
Cyclinder contributions test P0284 and P0541
Cleared codes
today:
KOEO - no codes
KOER - no codes
memory codes P1000 P0541 P0676
This is the update as of today I will check the codes if/when the service engine light returns.
Truck runs and starts without issue.
1.Check from dealer: P0683 GPCM, P0670 & P01670 EF open circuit
2. changed fuel & oil filter with fluid
3. Plug intake air heater
4.Checked resistance driver side all look OK
5. Replaced steering gear box
6. Replaced ball joints
7. Replaced front and rear shock
8. removed the driver side valve cover and checked the connection, torque and wire harness. Looks Ok.
This is a 2wd drive excursion.
Ordered a Snap on mtg2500 with program inserts and the 2001 Ford trouble with 1999 com cartridge.
Checked 1/2/16 and had the following codes: P1000 battery, P0603 fuse, P0541 air heater which is now plugged, P0676 #6 glow plug, P0683 GPCM.
Glow plug test P0541 and P0676
Buzz test no codes
Cyclinder contributions test P0284 and P0541
Cleared codes
today:
KOEO - no codes
KOER - no codes
memory codes P1000 P0541 P0676
This is the update as of today I will check the codes if/when the service engine light returns.
Truck runs and starts without issue.
Thread Starter
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New User
Joined: Nov 2015
Posts: 15
Likes: 0
service engine light
I think I can close this out. After my check with the Snap-on 2500, I found on this site the check out for the GPCM. Followed the procedure and replaced the GPCM. All is well after a week. Thanks for the help.
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