GPR or GP Issue?
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Cargo Master
Joined: Oct 2008
Posts: 3,330
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From: Eaton, CO
GPR or GP Issue?
I'm posting this for an older gentleman I work with. He has a '97 F250 extended cab, manual tranny, 4X4 PSD. He said his wait for start light had been shutting off after 15-20 seconds in the cold, but then one morning it took an entire minute for the wait to start light to go out. Each time it finally goes out, it starts great. The temps have been consistantly in the 20s. Would the ~40sec increase in time be the GPR? If so, is it the relay located next to the fuel filter under his flip up PSD cap?
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Cargo Master
Joined: Oct 2008
Posts: 3,330
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From: Eaton, CO
I'm new to owning a PSD myself... Why would his light stay on for up to 20sec in cold weather for the past 12 years and then, all of a sudden, stay on for one minute from that day on?
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Cargo Master
Joined: Oct 2008
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From: Eaton, CO
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Cargo Master
Joined: Oct 2008
Posts: 3,330
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From: Eaton, CO
Now the guy says it's hard starting after the light goes out. It takes a lot longer for it to crank and when it finally starts, it stumbles pretty bad. After initial warm up, it runs great. When he restarts it after warm up, it starts and runs great. GPs, GPR or injectors? 
Logistics Pro
Joined: Oct 2008
Posts: 4,818
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From: Avilla, IN
as far as the WTS that really doesn't have anything to do with the GP. if you want to know when the GP wait for about 60-90sec you'll eventually here a click and see the volt guage jump up just a tad.
I'm not exactly sure about the stumbling at start up and longer cranking time except that mine does that when its real cold <10* and if i didn't have it plugged in. i'd check it for codes just to see if anything comes up.
I'm not exactly sure about the stumbling at start up and longer cranking time except that mine does that when its real cold <10* and if i didn't have it plugged in. i'd check it for codes just to see if anything comes up.
Postmaster
Joined: Sep 2007
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From: Medford Oregon
Now the guy says it's hard starting after the light goes out. It takes a lot longer for it to crank and when it finally starts, it stumbles pretty bad. After initial warm up, it runs great. When he restarts it after warm up, it starts and runs great. GPs, GPR or injectors?