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Old 05-16-2011, 04:18 AM
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injectors

Is there a way to test stock injectors to see if their working properly, and if their not can they be fixed or is it time for new ones? Thanks again guys sorry for asking so many questions just trying in vain to get this truck right.
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Old 05-16-2011, 12:00 PM
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More info would help..miles, whats wrong etc..you can do a buzz test, contribution test for starts.
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Old 05-16-2011, 01:57 PM
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Sorry about that. Truck is a 02 with 183,xxx miles and it runs kinda ruff. I did the seafoam in the filter bowl thing but didnt seem to do anything. Truck doesnt smoke at all no matter how hard you get on it. It is all stock also. I dont have alot of low end power, it runs best above 2,000 rpms. This is my first psd so maybe this is how they run
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Old 05-16-2011, 02:01 PM
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I'd start with a general check up..buzz, contribution test..new fuel filters and a oil change..inspect all VCG's etc. If you can get a scanner check HPO#'s boost if your able etc..check for boost leaks, cloged filters turbo wheel for pitting..
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Old 05-17-2011, 05:59 AM
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Quote:
Originally Posted by CT Performance, Inc. View Post
I'd start with a general check up..buzz, contribution test..new fuel filters and a oil change..inspect all VCG's etc. If you can get a scanner check HPO#'s boost if your able etc..check for boost leaks, cloged filters turbo wheel for pitting..
Thanks I had the oil changed not long ago. You said fuel filters how many does the truck have? Iam new to this so all the other stuff i have no clue to what it is sorry. thanks again for the reply though.
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Old 05-17-2011, 09:11 AM
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1 filter on top of the engine, use a Racor fuel filter.
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Old 05-17-2011, 09:29 AM
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Buzz test isnt always helpful, my bud had them all buzz great, but contribution test he had 3 bad, changed a whole set and the trucks running like a new truck... it was way bad before..
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Old 05-17-2011, 11:42 AM
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Originally Posted by CT Performance, Inc. View Post
1 filter on top of the engine, use a Racor fuel filter.
Thanks will look for the filter.
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Old 05-17-2011, 11:43 AM
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Quote:
Originally Posted by Dietoremain View Post
Buzz test isnt always helpful, my bud had them all buzz great, but contribution test he had 3 bad, changed a whole set and the trucks running like a new truck... it was way bad before..
Ok thanks i will look for a shop that can performe these test.
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Old 05-17-2011, 02:11 PM
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Hey guys,

What is a contribution test, I have never heard of this

Thanks
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