2005 Pontiac Montana ecm ?

2005 PONTIAC MONTANA
100,000 MILES • 3.4L • V6 • FWD • AUTOMATIC
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MARKELLIOTT
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After running a few minutes the engine starts to skip, buck while driving down the road,wants to stall. Replaced tps and ran great for day, then back to running bad again. highway drining is a real chalenge with constant buckng
Feb 15, 2014 at 8:43 AM
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KNOWLEDGE IS POWER
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if theres no engine light on the id check the transmission fluid. check it on level ground in park at idle at full operating temperature. also check the air filter. if those are good then listen for a hissing vacuum leak at idle
Feb 15, 2014 at 5:23 PM