Having problems with your 2002 Pontiac Montana ?
The speedometer on my 2002 Montana stopped working and it started to shift irregularly. It doesn't shift at the right time and lurches the van when it does shift.
The trans is not getting a speed signal, fix the speedometer, that will also fix the trans. check the speed sensor first. the service eng soon light should be on.
Repair Help & Product Troubleshooting for 2002 Pontiac Montana
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