Hard start unless plugged in
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New User
Joined: Jul 2008
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Hard start unless plugged in
Yes my 2001 truck will not crank unless plugged in over night even though the weather is 82 outside. So far i have replaced the starter and put 2 new batteries in it. Checked the hpop resovoir and it is ok. I don't think it would be glow plugs or relay so haven't checked them, yet. Any suggestions before i plug it up and drive it down to the mechanic?
Senior User
Joined: Oct 2004
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Maybe someone else knows for sure, but at that temp. you shouldn't even need glow plugs. I'm wondering what sensor could be giving a false signal to the computer, sorry
I can't get tech. here. I would start with the glow plug relay and check all grounds first.
I can't get tech. here. I would start with the glow plug relay and check all grounds first.
Hotshot
Joined: Jan 2008
Posts: 13,144
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From: Rochdale MA
After the first start of the day how does it start? Does it fire right over or does it crank for a bit the start? Any smoke out of the tail pipe during the cranking? If so what color?
Check you GPR to make sure it is powered. Even in the warmer weather it will come on for a short period of time to aid in starting. Try jumping out the two large posts on it for 30 seconds and then try to start the truck.
Check you GPR to make sure it is powered. Even in the warmer weather it will come on for a short period of time to aid in starting. Try jumping out the two large posts on it for 30 seconds and then try to start the truck.
Hotshot
Joined: Jan 2008
Posts: 13,144
Likes: 11
From: Rochdale MA
Try jumping the 2 large posts on the GPR and see if starts. Do this 1st thing before you attempt to start it. If it starts up ok then it is a GPR issue and we will show you how to test that system out. Pretty easy to do.
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Senior User
Joined: Nov 2004
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From: Draper, Utah
or it will crank but not start unless you plug it in.
the block heater doesn't really have anything to do with the cranking of the motor.
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Joined: Sep 2006
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From: Middleton, Idaho
After reading this thread about two hours ago my lovely wife asked me to go get a watermelon. What does this have to do with this thread you ask? It is a balmy 106 degrees here in southwest Idaho and with this thread at the forefront of my brain, I had my eyes glued to my GPR led light when I turned the key on. Not only did the light come on it stayed on after the engine started for about 45 seconds. Not unusual in the morning, but it's freaking 106 degrees. So do like Jim said, check your GPR before you try anything else.
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Gpr was good. had 2 bad glow plugs one one each side so i replaced all of them while i had the covers off. It still won't start unless i plug it in. So i have eliminated batteries, starter, gpr, and glowplugs. What should my next step be?
Mountain Pass
Joined: Mar 2008
Posts: 199
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From: Uniontown KY
just food for thought but if its warm outside and you are haveing to heat your oil, maybe you are looking at an oil issue. How long has it been since your last oil change and what kind are you using?
Elder User
Joined: Nov 2008
Posts: 668
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From: Northfield, MI
As a matter of fact, many people drive around with completely inop glow plug systems and don't even know it. I worked as a diesel tech at a dealership for about 15 years. Each year in the fall after the first really cold night, it wasn't unusual to have a half dozen or so diesels towed in all complaining that the truck wouldn't start in the morning. Jumping the defective GPR would get most of them going, but others required most or all of the GPs to be replaced. The point is, these people had likely been driving most of the summer without working glow plugs, but they never noticed.
At this point, I'm not even sure what problem the OP is having. If the OP would accurately describe the symptoms he is experiencing, we would be able to get him going relatively quickly.
Jay
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Joined: Feb 2007
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From: Blairsville,Ga
I would venture to say the guys truck won't start with or without glow plugs,But will after being plugged in