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Problem need help

948 Views 6 Replies 6 Participants Last post by  DA_SURG
There is something wrong with my slk230...my car is auto..and it seems like today while i was driving down the highway..my car seems like it was adding more gas than what i am giving it with the pedal...let me try to give u a better exampl..say i am doing about 70mph and the rev is about mid 3,000 it seems lyke its pushing 3,800-4,000 so my car keeps juking bak and forth...then when i reached my home..i stopped the car and put it in neutral and it kept reving up and down from 500-1,300 and just kept repetition its self...if u kno a solution or kno what the problem..is please help me

Thanks
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Thermostat?

yo_light - 1/28/2005 2:55 PM

There is something wrong with my slk230...my car is auto..and it seems like today while i was driving down the highway..my car seems like it was adding more gas than what i am giving it with the pedal...let me try to give u a better exampl..say i am doing about 70mph and the rev is about mid 3,000 it seems lyke its pushing 3,800-4,000 so my car keeps juking bak and forth...then when i reached my home..i stopped the car and put it in neutral and it kept reving up and down from 500-1,300 and just kept repetition its self...if u kno a solution or kno what the problem..is please help me

Thanks
I had a similiar problem one time when I had my Eclipse. I would be stopped, have the car in neutral, and the RPMS would exceed 3,000. The problem was the thermostat, the car thought the engine was very cold, so inherently it gave it more gas to warm up.
Thankfully, my car was under warrenty when it happened, so all they did was replace the faulty thermostat and that was it.
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