Glow Plug problem?
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Junior User
Joined: Oct 2004
Posts: 93
Likes: 0
From: Oakley California
I replaced the glow plugs and the controller. Glow plugs seem to work right. Engine starts right away and then dies after about 30 seconds. Then it is hard to start but does start and then runs ok. I can drive it all I want. When I shut it down for 20 minutes it is the above all over again. It seems like a fuel leak problem.
I looked at all the connecters between glow plugs, looked ok, checked the ground.
How do I find a fuel air leak?
I am going to have to take it to a professional if I cannot figure it out.
All this started because a friend left the key on all night, killed the batteries and the controller and the glow plugs. I replaced all of the above.
It does not make sense.
I looked at all the connecters between glow plugs, looked ok, checked the ground.
How do I find a fuel air leak?
I am going to have to take it to a professional if I cannot figure it out.
All this started because a friend left the key on all night, killed the batteries and the controller and the glow plugs. I replaced all of the above.
It does not make sense.
i ain't rite
Joined: Mar 2005
Posts: 65,448
Likes: 5,517
From: Marlboro Mental Hospital.
it sounds like you have an air leak in the return line system.
next time before you go to start the truck cold, remove the fuel filter and look in it. if it is full, it is something else.
but my bet is you will find the fuel filter 1/2 or more empty.
this is a classic symptom of air intrusion. a return line kit will usually fix this. the kit contains return lines, caps, and o rings.
what happens is the o rings in the caps get disturbed when touched and let air leak into the system. then when you shut the truck off it lets the fuel in the filter drain back into the tank. when you go to start the truck it will fire on the fuel in the injector pump, then run out of fuel until the system is reprimed.
next time before you go to start the truck cold, remove the fuel filter and look in it. if it is full, it is something else.
but my bet is you will find the fuel filter 1/2 or more empty.
this is a classic symptom of air intrusion. a return line kit will usually fix this. the kit contains return lines, caps, and o rings.
what happens is the o rings in the caps get disturbed when touched and let air leak into the system. then when you shut the truck off it lets the fuel in the filter drain back into the tank. when you go to start the truck it will fire on the fuel in the injector pump, then run out of fuel until the system is reprimed.
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Junior User
Joined: Oct 2004
Posts: 93
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From: Oakley California
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i ain't rite
Joined: Mar 2005
Posts: 65,448
Likes: 5,517
From: Marlboro Mental Hospital.
yes, but there are better kits available online.
i use the kit from accurate diesel.
https://www.accuratediesel.com/shop/21.html
i use the kit from accurate diesel.
https://www.accuratediesel.com/shop/21.html
Lead Driver
Joined: Jan 2005
Posts: 7,782
Likes: 221
From: Huntington Indiana
Not sure. Doesn't hurt to ask. Also try amazon. Seems like they have everything
Thread Starter
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Junior User
Joined: Oct 2004
Posts: 93
Likes: 0
From: Oakley California
You were right about the filter being half full. After hard starting truck runs good until I turn off engine.
I replaced glow plugs, controller, batteries, new battery cables, air filter, fuel filter and return fuel lines from Napa auto parts. I know some of these don't have a lot to do with it but I don't know where to look next.
I took truck to a local diesel mechanic. He looked for a couple of hours, nothing.
I don't know what it could have to do with it but I replaced all the wiring under the dash for power window setup. My friend burned up the old setup and this starting problem started after the new installation of windows. I took some old wiring out under dash. Everything electrical works but I wonder if there is something electrical that I did under the dash that could cause the air leak.
I replaced glow plugs, controller, batteries, new battery cables, air filter, fuel filter and return fuel lines from Napa auto parts. I know some of these don't have a lot to do with it but I don't know where to look next.
I took truck to a local diesel mechanic. He looked for a couple of hours, nothing.
I don't know what it could have to do with it but I replaced all the wiring under the dash for power window setup. My friend burned up the old setup and this starting problem started after the new installation of windows. I took some old wiring out under dash. Everything electrical works but I wonder if there is something electrical that I did under the dash that could cause the air leak.
i ain't rite
Joined: Mar 2005
Posts: 65,448
Likes: 5,517
From: Marlboro Mental Hospital.
nope. if the filter is not full when engine is cold, you still have air getting into the system. when you replaced the return lines, you also replaced the o-rings too, rite?
i ain't rite
Joined: Mar 2005
Posts: 65,448
Likes: 5,517
From: Marlboro Mental Hospital.
you need to replace the o-rings on the injectors under the caps. and use a dab of grease on each o-ring before installing it to insure the cap slides on without tearing the o-ring.