2001 GMC Safari SL 4.3L Surge, Misfire
Surging under load about 4k rpm before it shifts into next gear. As it surges it flags muiltable cylinder misfires, but doesnt feel like a misfire, more like a fuel or air surge issue. Fuel pressure holds steady at 61 psi while it surges. Map sensor hold at 3....
FIX posted 1/17/2014
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Message Closed w/FIX
Vehicle Data2001 GMC Safari SL
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Message Closed w/FIX
Vehicle Data
2001 GMC Safari SL
VIN | 1GTDL19W21 |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Surge, Misfire |
Occurs | Under Load, on Accel |