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Holt50 replied to the thread Missing back fire.Did fuel pressure test idle running but not driving need to find a longer hose also checked every spark plug with plug tester and all is... -
Holt50 replied to the thread 1999 YUKON/Engine surging and missing while driving.I’m trying to figure out the same problem
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Holt50 replied to the thread Missing back fire.I’ll try that tomorrow thank you
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Try a fuel pressure check. Key on eng off, running idle, running hiway.(long hose on guage under wiper on windshield) Also time on...
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Holt50 replied to the thread Missing back fire.The problem is back starts right up a slightly rough ideal can drive it erring until I try to give it a little more throttle then normal...
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