2010 Buick Lucerne
First of all, just wanted to say hello and thanks for the join.
Just bought a 2010 Lucerne with the 3900 engine in it and it has a little issue that I can seem to figure out. I’ve replaced the throttle body and the mas, map sensors and gas pedal with no change. Under very light throttle less then 1/4 car operates fine. Anything over 1/2 throttle car is fine, even to the floor is fine. But if you go 1/4-1/2 throttle, the car acts like you’re fully releasing the throttle and putting it back on but your foot never moves. It’s really weird. Never had a vehicle do this. Nothing has help or changed it. Car runs great as long as you stay out of that throttle area. Scanner says everything is good. TPS % doesn’t change. No codes at all which it throwing me. Please help. Thanks in advance! |
Originally Posted by Cooldude48818
(Post 18933)
First of all, just wanted to say hello and thanks for the join.
Just bought a 2010 Lucerne with the 3900 engine in it and it has a little issue that I can seem to figure out. I’ve replaced the throttle body and the mas, map sensors and gas pedal with no change. Under very light throttle less then 1/4 car operates fine. Anything over 1/2 throttle car is fine, even to the floor is fine. But if you go 1/4-1/2 throttle, the car acts like you’re fully releasing the throttle and putting it back on but your foot never moves. It’s really weird. Never had a vehicle do this. Nothing has help or changed it. Car runs great as long as you stay out of that throttle area. Scanner says everything is good. TPS % doesn’t change. No codes at all which it throwing me. Please help. Thanks in advance! |
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