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1998 mercury cougar rx8 155000m Hi the few problems my car is having is when I first push in the pedal it has a hesitation and won't immedieatly accelerate. It'll finally **** and take off after about a .5 to a second after pushing in the pedal. The other problem is when I try to accelerate quickly it hits 3000rpms and just stops accelerating like it has a governor or something. Some advice would be greatly appreciated!!

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It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

There are many other possibilities. I suggest you to go through the list of help links mentioned below, these will help you to confirm where the actual fault lies: -------

Jerks and Hesitates During Acceleration?


Loss of acceleration?


Headlights flickering and car hesitates to start?


How exactly the Vehicles Accelerator Cable works?


How exactly Vehicles Accelerator Pump Diaphragm Works?


2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?


2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?


Wheel hop under hard acceleration?


2009 Chevy impala accelerator pedal sensor?


Nissan Pathfinder stalls and bucks on Acceleration?


Acceleration lag problem?


These details will help.


Posted on Nov 28, 2012


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SOURCE: engine ideling

Check for a vacuum leak around your intake probably close to the throttle body

Posted on Feb 06, 2009

SOURCE: I have a 1995 mercury sable. I've it for 5

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SOURCE: Won't accelerate when i hit the gas

Does your car seem to be down in power compared to what you would consider normal? If yes, I would get the MAF checked, and probably cleaned. New one is like 400 bucks, but they are easy to clean, and then act just like new again. You just have to be careful and gentle, cause if you should happen to break one of the sensor wires, its done. Otherwise, it sounds like its in the master computer, but isn't too serious a thing. Financially wise. When you release the accelerator, does it react immediately, or do you have to depress a few times before it seems to respond? Good luck.

Posted on Nov 15, 2012

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