Having problems with your 2002 Pontiac Montana ?
My 2002 pontiac montana trans has trouble shifting in cold weather. It is a overdrive trans. it will shift from low to second and sometimes one more time. I can drive it slow after a little bit it will start shifting . Plenty of fluid.
You may have a case of morning sickness. in a transmission they are seals the are bad and leak fluid past them. causing a shifting problem when cold as fluid warms up seals swell and your pressures increase allowing a better shift.
Repair Help & Product Troubleshooting for 2002 Pontiac Montana
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