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International Automotive Technicians Network
2003 Pontiac Montana 3.4L Cuts out, Misfire, MIL Lamp on
Posted to GM Driveability on 10/22/2007 4 Replies

Hello Techs! Here's one that's driving me crazy. It all started 2 weeks ago. Customer complaint: CEL light on, bucking/jerking under load or accelerating, even in the parking lot in PARK. If I rev the engine in PARK to somewhere between 1500 - 2500 rpm, it wil...

4 Replies Received (View Replies)

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Message Closed w/Summary

car Vehicle Data

2003 Pontiac Montana

VIN 1GMDU03E13
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsCuts Out, Misfire, MIL Lamp On
OccursUnder Load, on Accel, Intermittently
Message Closed w/Summary

car Vehicle Data

2003 Pontiac Montana

VIN 1GMDU03E13
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsCuts Out, Misfire, MIL Lamp On
OccursUnder Load, on Accel, Intermittently