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2001 GMC Savana 2500 5.7L Misfire
man do i need some help on this one,gmc van 5.7 motor codes po335 po341 it runs like crap just above idle it backfires if you pull number 1 plug wire it goes away,on my modis scanner it shows no missfires,plugs and wires are new have real good spark, replaced ...
FIX posted 6/2/2008
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Related Documents & Media | VIN | 1GTGG25822 |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / codes po335 po341 |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
Message Closed w/FIX
Vehicle Data
2001 GMC Savana 2500
| VIN | 1GTGG25822 |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / codes po335 po341 |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire |
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