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  #1  
Old 08-05-2009, 05:41 PM
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NEED HELP

I was driving down the road today and I suddenly lost power. It runs horrible. It barely idles almost like its running on only a couple cylinders. I put a fresh fuel filter in it last two weeks ago. It starts easy but barley runs. It has 60-70 psi fuel pressure help me out. I had to tow it home. It knocks at really low idle
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Old 08-05-2009, 05:47 PM
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My dads truck recently did this and turned out to be the harness coming into one of the injectors. Sucks to pull the valve covers but cheap fix and it seems to be pretty common....
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Old 08-06-2009, 06:53 AM
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i need some suggestions
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Old 08-06-2009, 07:01 AM
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no idea. i would check the harness connections. and maybe if you have o rhave access to an IR temp gun, start it up and check the temp on the exaust pipe on the manifold. see if cylinders arent firing...

injector rings? cracked piston? head gasket? broken rocker?

good luck and in either case here is a bump!
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  #5  
Old 08-06-2009, 07:03 AM
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There are a world of possibilities. Find a way to pull codes and see if that gives you any indications. The UVC harnesses are a known trouble spot. But, other things are too. I hate to see you just start throwing $parts$ at it.
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Old 08-06-2009, 04:29 PM
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The driver side of the motor is quiet and seems fine but its the passenger side in the back like cylinders 7 and 8 are knocking really bad and seems like they may not be firing right. My egts will not go over 200 and will not rev above 1800.
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Old 08-06-2009, 04:40 PM
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Help out here guys but isnt there an issue with the #8 cylinder being starved (reason for the HPX crossover). Possibly choked an injector. Try doing a buzz test on the injectors as well.
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Old 08-06-2009, 04:57 PM
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Check the connector to the wiring harness on that side. If OK pop the valve cover and check your harnesses.
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Old 08-06-2009, 05:03 PM
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the connection are good what would I look for under the cover
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  #10  
Old 08-06-2009, 05:16 PM
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Fried wiring.
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