transmission

2001 PONTIAC GRAND AM
149,076 MILES • 3.4L • 6 CYL • FWD • AUTOMATIC
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ED5055
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  • 1 POST
my Grand Am wont shift into overdrive it shift through first second and third with no problem but won't shift into overdrive someone told me it was a torque converter lock out another person said it was speed sensor another person said it was the throttle sensor can someone help me figure out what's wrong with my car.
Aug 28, 2016 at 1:21 AM
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HMAC300
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  • 48,601 POSTS
have a trans guy scan for codes if it's a torque converter clutch it will need to be changed anyhow. Or it may have a clutch failure inside trans.
Aug 28, 2016 at 7:48 AM