Question about Pontiac Sunfire
I doubt it.
The map sensor reads manifold vac and sends a signal to the computer. If the signal is out of range, the check engine light should come on. If the check engine light is on, that might affect trans performance.
Posted on Apr 22, 2013
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Posted on Jan 02, 2017
Did you use a mopar sensor.I have fixed this problem many times and not had much luck with the aftermarket sensors.Just a thought.Good Luck!!!
Posted on Aug 04, 2008
Its weird but I had a fuse blow out awhile back that is the same fuse that works the cab lights when you open the doors. When this fuse went out it also made it shift odd and hard when it did shift. Since it is only intermittent in your case, It may just be a weak fuse.
Posted on Aug 28, 2008
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