need input before last hair pulled out!

[atstew42]

1997 powerstroke is extremely hard to start even at 50 degrees . Gpr is working. Replaced glow plugs,valve cover gaskets and uvch, icp sensor, cleaned ipr,new cps new fuel filter. Will crank but dies after 2-4 sec. It is not throwing any codes. Please some good info. I cant keep throwing money at this truck. Very frustrated

[Fordman247365]

How many miles are on it? How does it run when it starts, smooth or rough?

[atstew42]

190k. Rough loping idle for about 3 sec then smooths out. It has a miss but after 5 mins the miss is gone and runs fine. It is hard to start even after it warms up. I can drive it to town, about 15 mins. Get back in to start and i may have to try and crank 2-3 times before it starts

[backwoodsboy]

Any smoke on start up? If so what color?
Is the cranking sluggish?
Does it appear to be harder to start warm than cold?

[atstew42]

After repeated cranks, white smoke comes out. I keep batteries on a tender so no worries there. Cold starting is worse than warm. Below that 50 it doesnt want to start at all. And its not throwing any codes

[alberta 7.3]

Do you have access to a scantool/AutoEngenuity? You should run a contribution test with the truck running to see if you have some weak injectors.

Having a few weak injectors will cause difficult starting/no start, worsened by lower temperatures, and will usually not throw any codes.

[95Strokeee]

My truck used to have 2 shoddy injectors and it would not want to start at all in warm or cold weather. Even when I plugged it in it still started rough.


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[Fordman247365]

Originally Posted by 95Strokeee

My truck used to have 2 shoddy injectors and it would not want to start at all in warm or cold weather. Even when I plugged it in it still started rough.


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Mine was the same. Before injectors the whole GP system was new and wouldnt start at 40*. After I replaced the injectors I never plug it in, unless it is going to be past -15*

[CELAYORK]

I agree with the opinions above, but how is working your starter? This beasts needs some RPM to start, even with a good batteries. Just a guess.