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2000 Chevrolet Monte Carlo LS 2dr Coupe

2000 Chevrolet Monte Carlo
Trim Info:
Front Wheel Drive, 2 Door Coupe LS, Mid-Size
20 mpg city / 32 mpg hwy
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February 6, 2013, 5:31 pm

Christop P
 

Question: Down shifting erratically

When driving my car it sometimes shifts into overdrive but 75% of the time it will down shift and then go back into overdrive many times a minute What could be the cause? Also my car only has 53,000 miles


February 18, 2013, 4:34 pm

Elizabeth K
Expert Mechanic

That could be a problem with the torque converter clutch (TCC) switch. Have it scanned for codes and test any part before replacing. The brake on-off (BOO) switch should over-ride the TCC, so if you lightly press on the brake pedal, it should stop the erratic shifting problem.


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