New glowplugs and relay. Still not working - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 01-29-2011, 04:10 PM Thread Starter
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New glowplugs and relay. Still not working

Ive been having long cold starts latley. So i replaced all my gp's and my gp relay. Im still having cold start problems.

So i tested the relay and its not sending power to the gp side. The two small ports are always reading 12v even when the plugs should be warming up. Where one port should be 12 and the other should be negative. Correct?


My question is. What controls the duration of the glowplugs. In my diesel jetta the coolant sensor determines the duration. Or if their even turned on at all.

Is it the same on my truck?

1996 f 250 2wd

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post #2 of 4 Old 02-06-2011, 04:24 AM
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So i was having serious cold start problems where i could only get my truck to start with plugging it in every night... I went through everything... GP's, GPR, harness, ect... Then went out one morning and all i got was a click... Checked battery's, solenoids, cables, still nothing... Changed the starter and now it cranks faster than it ever has...

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08 Axle/4x4 conversion, 5spd conversion, 6637, 5" SP exhaust, gearhead tunes

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post #3 of 4 Old 02-06-2011, 05:07 AM
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The PCM controls the operation of the glowplugs. The stock program in my '95 is TEE5, which operates the glowplugs for a full cycle regardless whether the truck is warmed up or not. In my chip, I have TDE1 programming, which causes the glow plugs to cycle completely when the engine is cold, but will not cycle them when the truck is warmed up.

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post #4 of 4 Old 02-16-2011, 06:36 AM
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Quote:
Originally Posted by STROKED_NY_023 View Post
So i was having serious cold start problems where i could only get my truck to start with plugging it in every night... I went through everything... GP's, GPR, harness, ect... Then went out one morning and all i got was a click... Checked battery's, solenoids, cables, still nothing... Changed the starter and now it cranks faster than it ever has...
I am also experiencing problems starting the truck without plugging it in overnight. Your saying after replacing the starter your problems were solved? I have checked the GPR and it is good, but I also heard you can ohm out the GP's through the UVC harness...Is that true? anyone know?

'95 F-350 Reg. Cab, LB, SRW, 4x4
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