replaced glow plugs...no success! - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 18 (permalink) Old 12-24-2006, 04:57 AM Thread Starter
 
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replaced glow plugs...no success!

Alright guys, I need your help. My truck has been having a rough time starting. The engine will crank like it wants to start, it blows white smoke, so I know it's getting plenty of fuel. After 5 minutes of me turning the key off and on the truck will finally start. It sounded like a glow plug issue, so I replaced the glow plug relay, didn't fix the problem. Had the batteries tested, they checked out fine. Had the glow plugs changed, I was told that I had 4 bad glow plugs. I was hoping that would have fixed my problem but still, having problems starting it...Any help would be greatly appreciated.

Kev
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post #2 of 18 (permalink) Old 12-24-2006, 12:29 PM
 
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When was the last time the oil was changed?
If its low or dirty it won't do a good job firing the injectors. A;so a weak hpop willl allow leak down of oil and cause hard starting
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post #3 of 18 (permalink) Old 12-24-2006, 01:38 PM
 
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I would check and make sure all of the connectors are ok. The OBS trucks liked to burn the the pins on either side of the valve cover gasket. If all the wiring is ok it might be time for a compression test.

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post #4 of 18 (permalink) Old 12-24-2006, 07:32 PM Thread Starter
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Oil was changed 1000 miles ago. Truck runs great after it starts, it's just getting it started.
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post #5 of 18 (permalink) Old 12-26-2006, 02:01 AM
 
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i seem to be having the same trouble, i have to glow it about 10 times before it starts, maybe more, i put new glow plugs and harneses in it and it was good for a while but now its getting worse and worse every day. please help its there a timer or selnoid that could need replacing. and also when i drive the truck in the morning and most of the day the waste gate opens even when its warm and then when i give it more gas it goes back to normal.
thanks
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post #6 of 18 (permalink) Old 12-26-2006, 02:18 AM
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Check out the thread (HELP! no start) in this Forum.

Me and my bro posted on that thread some things to check.

Hope we can help! Good luck!:Thumbup:

89 w250 project truck
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post #7 of 18 (permalink) Old 12-26-2006, 03:40 AM
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"Had the batteries tested, they checked out fine"

Make sure you have12.7 or better when testing. GP's will draw it down quite a bit. Turn the key to cycle the GP's and test voltage at that point. If the voltage is below 11.4 then batteries need to be addressed.

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post #8 of 18 (permalink) Old 12-26-2006, 04:43 PM
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Check BOTH large terminals of the GPR with the "Wait to Start" light on, you MUST have bettery voltage on BOTH terminals, or the GPR is bad (measured to battery ground of course).

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post #9 of 18 (permalink) Old 12-28-2006, 12:11 AM
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Quote:
Originally Posted by TheBAT
Alright guys, I need your help. My truck has been having a rough time starting. The engine will crank like it wants to start, it blows white smoke, so I know it's getting plenty of fuel. After 5 minutes of me turning the key off and on the truck will finally start. It sounded like a glow plug issue, so I replaced the glow plug relay, didn't fix the problem. Had the batteries tested, they checked out fine. Had the glow plugs changed, I was told that I had 4 bad glow plugs. I was hoping that would have fixed my problem but still, having problems starting it...Any help would be greatly appreciated.

Kev
When you get in the truck in the morning, turn on the key, watch the volt meter instead of the WTS lite, when it pops back to normal, start it then & see what happens...Or wait about 30 -60 seconds before you start it. Turn the key on & leave it on....

Rick....

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post #10 of 18 (permalink) Old 12-28-2006, 06:13 AM
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Check the oil level in the HPOP resivor, this will cause a hard start also if the oil is not staying in the resivor.

96 F-250 4X4,DP Tunner, EZmod, up graded IDM, custom drive shafts, staight axle up grade, 5-speed,head studs, bps bypass, dual HPOP's, AFE Filter, aeromotive fuel system, tubes, springs, oringed, copper head gaskets, 5" stacks (all chrome), south-bend dd clutch, H2E big spinny thing, some hugh-jazz injectors, 3" body lift (had to fit the turbo in), homemade traction bars fromt and rear, blood sweat & lockers!!
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