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  #1  
Old 12-06-2009, 01:04 PM
truckeronesong truckeronesong is offline
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grrrr!!!

I have a 99chevy sub and when I'm driving at sixty mph my truck starts missing. What I mean is it chugs and hesitates like it wants to quit. Any help would be greatly. Appreciated . I've. Spent over 1500 dollars. Trying to fix this problem at the shop to no avail.
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Old 12-06-2009, 02:19 PM
777stickman 777stickman is offline
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Re: grrrr!!!

Please tell us what has been replaced, what brands were used, what testing was done.

Also any and all DTC's (codes).
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Old 12-06-2009, 03:51 PM
truckeronesong truckeronesong is offline
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Re: grrrr!!!

Replaced fuelpump.dist.masairsens. throttlepos sens. Battery alt.
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Old 12-06-2009, 04:32 PM
777stickman 777stickman is offline
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Re: grrrr!!!

What is the fuel pressure when this happens? Anything below 55-60 is not good.

You didn't mention anything about the filter being changed.

Also what motor?
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57 Chevy 210
65 Olds 442 Convertible (Another one sold)
75 GMC Vandura 3/4 Ton
1999 K2500 Old Body Style Suburban (Gone but not forgotten)
05 Dodge Ram 3500/5.9 Cummins
2012 Toyota FJ Cruiser
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  #5  
Old 12-06-2009, 09:26 PM
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laxman21 laxman21 is offline
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Re: grrrr!!!

Check for a fowled plug...Twas my problem.


Could be the spider and a poppet valve stuck


Any codes?



Edit: Annoying, ain't it?
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Old 12-13-2009, 07:06 PM
edboyles edboyles is offline
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Re: grrrr!!!

replace rotor, cap, plug wires.........
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Old 12-14-2009, 01:09 PM
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laxman21 laxman21 is offline
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Re: grrrr!!!

Stop throwing parts at it. Get it professionally diagnosed.
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