Very hard start - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 14 (permalink) Old 10-23-2007, 04:38 PM Thread Starter
 
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Very hard start

I have a 97 f-350 crew cab with a edge evolution programmer intake and 3 inch downpipe to 4 inch out. But for some reason now that its colder out only in the 40s to 50s my truck doesnt want to start it cranks for a long time some times i gotta do about 3 cycles of cranking before it chokes then blows a bunch of white and blue smoke then runs fine and starts fine after that what could that be????
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post #2 of 14 (permalink) Old 10-23-2007, 04:44 PM
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Sounds like you might need some glow plugs my fellow BMXer. Just a guess tho.

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post #3 of 14 (permalink) Old 10-23-2007, 05:14 PM
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Im not sure if the OBS has it but i had the same promblem on my 01 SD i found the glow plug relay was bad, replaced have'nt had a problem since.

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post #4 of 14 (permalink) Old 10-23-2007, 07:01 PM
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The OBS has a relay just like the one in the SD. Go to a NAPA and ask for the GPR 109. The relay sits just under and kind of off to the side of the engine cover. Hook the new up just like the old was and your good to go. If you still have cold start issues, then you may need to swap out the plugs. They are under the valve covers and take the average joe about 2-3 hours to replace.

OBS under the hood picture here -> https://www.thedieselgarage.com/forum...ad.php?t=22948

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post #5 of 14 (permalink) Old 11-04-2007, 05:11 PM Thread Starter
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how much does this usually run
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post #6 of 14 (permalink) Old 11-04-2007, 05:25 PM
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The part number for your truck is: ECHGPR110 and it runs about $85.

Jim

early 99 with some stuff on it
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post #7 of 14 (permalink) Old 11-04-2007, 05:43 PM
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Look at your battery meter on the dash when you crank it. If it moves far to the left for a while, your relay is OK. Most likely it is your battery cables. I had this happen to mine a year ago. Changed GP's did not help. New batteries did not help. My cables looked fine but someone told me to change the cables because the same thing happened to him. I bought new cables and it starts faster than ever. Even when it is 0* outside. I got them from www.powerstrokeshop.com.
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post #8 of 14 (permalink) Old 11-04-2007, 08:21 PM
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Quote:
Originally Posted by blk99
The part number for your truck is: ECHGPR110 and it runs about $85.

Jim
109 is about $20.00 at napa...

Rick....

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post #9 of 14 (permalink) Old 11-04-2007, 11:27 PM
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I had this same problem with my truck. Once it started getting in the low fifties and under i had to start plugging it in, and all four glow plugs on the left bank had bubbles on them from overheating them or something. I replaced just those four and i didn't have to plug it in the rest of the winter. even down in the low twenties.
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post #10 of 14 (permalink) Old 11-04-2007, 11:38 PM
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most likely the relay, mine did the same thing last year.

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