Question about 1992 Buick Park Avenue
1992 Buick Park Avenue Ultra Supercharged 3.8L OBD I system. SES light on, but no ck engine light. Speedo works, so I dont suspect VSS. Excel. throttle response, so dont suspect vacuum leak. Temp sensor ok, TPS ok...at least no codes to suggest any of these. When car is in third at about 45, if I ease up on gas pedal, tach goes down to 1500 to suggest third gear solinoid working...just no TCC.
Any Ideas? Thks......PHB
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Posted on Jan 02, 2017
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