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Old 06-08-2013, 12:55 PM
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occasional stumble

Hey guys, could use some help. I have a 96 with a 5spd that on occasion (1-3 times every 50 miles), stumbles as if running out of fuel. I replaced filter, replaced entire housing including FPR seems to happen less now but still happens. I'm thinking either I have a small leak in my fuel line thats drawing air ( nothing is visable ), or there is a screen somewhere thats plugging up. The truck has actually only stalled once and stumbles even at idle once in a while, does the same thing on both fuel tanks. Any ideas or input would be greatly appreciated, thanks
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Old 06-09-2013, 02:04 AM
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sounds like you need new injectors. a buzz test will tell you how healthy your injectors are
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Old 06-09-2013, 12:36 PM
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Sorry, has new injectors and harness no codes either
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Old 06-09-2013, 01:17 PM
Can you hear the derail??

 

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My truck did that every now and then, swapped in a new CPs and runs great now
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Old 06-10-2013, 10:21 AM
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^^^^^ +1; Next time it stumbles, watch the tach. If it drops way down, below the actual engine speed (with a 5-speed, the truck's momentum will keep the engine turning), then that fingers the CPS or wiring to it. If it just barely moves, or not at all, then it may be a fuel or other issue (but doesn't rule _out_ the CPS).
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