Check the connection on the oil pressure switch. If the connection is solid I would just go ahead and replace the oil pressure switch. They only cost on an average 7 to 13 dollars. Hope this helps.
Check the vent on top of the transmission as it may be building up pressure and can not vent it.
The transmission is not building up enough pressure to shift. Check your fluid and fill if needed. If fluid is fine change the trans. filter and the pressure modulator. If that does not fix it have the tourqe converter flushed. If that does not fix it, you may need to have the transmission overhauled or have the transmission replaced Another thing, check your linkages!!. there could be a lose linkage on the transmission, or it could be seased.
If it is the same problem I had, it is in the transmission and requires the pulling of the transmission. This is a comman problem with some Montanas. It might be the pressure control solenoid located inside the valve body of the transmission. Yes this is probly your answer. These cars have this problem alot. I work for Gm and I know first hand. I was having the exact same problem two weeks ago. I replaced the pressure control soleniod and the transmission now shifts as smooth as it did brand new.
Weak transmission fluid pressure. The fluid goes bad after many miles of use. Have the transmission fluid and filter replaced (about $100) immediately before the transmission goes bad. A transmission for that car cost more than the car is worth.
Yes.
It has to do with the transmission. More often than not it's the pressure sensor #4 that needs to be replaced (~ $250 parts and labor) and not the entire transmission. Make sure it's the #4 sensor and not #3 sensor that needs to be replaced - even the pros at the dealerships make this mistake.
It will be one of possibly 2 things. The seal is not the correct one or is not being installed correctly. Or the transmission is building to much internal pressure. Look on top of the transmission and the is a vent tube, be sure it is free of obstructions.
No, this means there is a fault in the fuse box or your transmission needs to be replaced
TIME TO GET THE TRANSMISSION REPLACED
I had a transmission replaced about a year ago and it cost about $2,500
Theres no pressure in the transmission yet. Once you start the engine it will be normal
Air pressure governor needs to be replaced.