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I was coming to a red light, let up off gas to coast. When it slowed to about 20mph, the car began to accelerate back up to 25, 30, then 35 mph on its own. I checked the accelerator to see if it was stuck. I then pressed the brake...HARD and the rpm's kept going up. I finally had to slide it to Nuetral where it still had high rpms, then put it into park and turned it off. It's difficult to restart (like it's flooded). It's done it randomly 5 times in a week. Mechanic is stumped. I just paid $2000 for a transmission rebuild (this actually started the day before my appt. for the transmission)..not sure if they're related. Any ideas????

2007-12-17 07:38:17 · 7 answers · asked by patti 2 in Cars & Transportation Maintenance & Repairs

7 answers

i don't think the tansmition is the problem definatly have the gas pedal check [spring's cable's] and the throtle adjustments

2007-12-17 07:43:02 · answer #1 · answered by staples_92 4 · 0 0

Simple answer: NO the transmission has no effect on the acceleration problem. There are many elements which play into acceleration problems, e.g., throttle cable, the cold start value (older cars called it throttle), accelerator pedal linkage mal-adjusted, acceleration enrichment circuit or several other sensors too many to name all. This problem is simple to fix but can best be fixed at the dealer's. Just take it and ask them to check all acceleration points and reset them to factory specifications. Basically what you're telling them is: put it back the way it was when I bought it. Don't use a cheap mechanic for these problems. Non-dealer mechanics are not certified and most are not even up-to-date on the many technical manuals and notes that come out monthly on the vehicles for which they have been certified. They are cheaper but can dollar-dime you to death. Dealers charge more but their service has a warranty.

2007-12-17 16:09:00 · answer #2 · answered by Anonymous · 0 0

Maybe your mechanic bent the accelerator cable when he R&R'ed your tranny. Check for proper operation of the cable with the engine off, making sure there are no kinks in the system or that there is nothing interfering iwth it's smooth operation. You should mention what kind of car this is. Some cars are fly by wire cars that have a sort of remote controlling of the accelerator withou any cable (done by a sensor) Is this car fuel injected or carbureted????

2007-12-17 16:02:08 · answer #3 · answered by Robert M 7 · 0 0

It could be the throttle cable, throttle assembly, idle air controller or anything.

Have them scan the vehicles computer and check for any codes,

2007-12-17 15:47:03 · answer #4 · answered by Anonymous · 0 0

what year is car and make

2007-12-17 15:48:41 · answer #5 · answered by christine dakotainky 2 · 0 0

it could be the trottle position sensor

2007-12-17 15:43:08 · answer #6 · answered by Firecracker67 4 · 1 1

OLDER CAR COULD BE CARB FLOAT.

2007-12-17 16:11:38 · answer #7 · answered by PEABUS 6 · 0 0

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