hard start problem
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Tuned
Joined: Mar 2001
Posts: 491
Likes: 2
From: MS.
hard start problem
Now that I have the pinhole in my block sealed I can concentrate on my original problem hard start.the glow plugs and GPR seem to be working fine.It seems like I am losing the "prime". Almost like the bowl has to refill itself before it will start
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Tuned
Joined: Mar 2001
Posts: 491
Likes: 2
From: MS.
The GPR is brand new.I have not checked each glow plug. The wait to start light lasts about 25- 40 seconds.The truck will attempt to start almost everytime I crank it but it won't catch and run the first few times.Is it possible to have a back flow of fuel when sitting overnight through a weak fuel pump
Hotshot
Joined: Dec 2005
Posts: 14,375
Likes: 604
From: evansville in
After the light goes out keep waiting 30 seconds.then hit it.the glow plugs will be on for up to two minutes.the wait to start light is just a reminder.it can take more warming in very cold weather.
Lead Driver
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
The fuel pump doesn't hold fuel. The fuel bowl does. If the bowl is not remaining full, you have a leak.
As fordman67 suggested above, what can "leak down" while parked is the injection oil (HPO). Remove the reservoir top plug next time you park it, and note the level. Replace the plug, then after it's been parked a while, check it again. If it's gone down, there's your problem. HP oil is draining back into the pan while parked.
As fordman67 suggested above, what can "leak down" while parked is the injection oil (HPO). Remove the reservoir top plug next time you park it, and note the level. Replace the plug, then after it's been parked a while, check it again. If it's gone down, there's your problem. HP oil is draining back into the pan while parked.
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Tuned
Joined: Mar 2001
Posts: 491
Likes: 2
From: MS.
Reservoir is full.I tried to start it this morning and it would bump like it wants to start but after about 15 mins of that I sprayed some "liquid crack" in it and she fired up. (Yes I know better)it seems to run okay but every once in a while it will stumble or just out the blue die but will start back up.i need to make this truck dependable right now I am scared to drive it anywhere.
Is there a way to test wiring harness for ohms to the glow plugs or do the covers have to come off?
Is there a way to test wiring harness for ohms to the glow plugs or do the covers have to come off?
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Hotshot
Joined: Feb 2009
Posts: 10,408
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From: Plankinton, SD
Reservoir is full.I tried to start it this morning and it would bump like it wants to start but after about 15 mins of that I sprayed some "liquid crack" in it and she fired up. (Yes I know better)it seems to run okay but every once in a while it will stumble or just out the blue die but will start back up.i need to make this truck dependable right now I am scared to drive it anywhere.
Is there a way to test wiring harness for ohms to the glow plugs or do the covers have to come off?
Is there a way to test wiring harness for ohms to the glow plugs or do the covers have to come off?
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Hotshot
Joined: Jan 2012
Posts: 11,132
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From: Southern West Virginia
I agree with Darin. I also think you have some bad glow plugs. Another quick way to test the glow plugs is using a 12v test light. Clip the ground wire of the test light to the POS terminal on the battery. Unplug the the valve cover harness plugs and touch the tip of the test light to each outside pin down in the valve cover gasket. If it lights up the GP is good, if it doesn't light up, the GP is bad.
Fleet Owner
Joined: Aug 2004
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From: AZ
Thread Starter
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Tuned
Joined: Mar 2001
Posts: 491
Likes: 2
From: MS.