[pylon]

Originally Posted by aem123

are there any auto mechanics here? - there is something wrong with my car and i dont know what - i drive a 2002 buick century - here are the problems:

1.) When driving down the highway, the vehicle does not seem to have enough power to climb hills at a reasonable speed. When the car kicks down a gear it drives fine but when climbing hills when it kicks down two gears the car decelerates and the motor revs and I slowly climb the hill decelerating all the way down to 50 or 60 kms per hour.

2.) Sometimes when starting from a complete stop, at about 10 or 15 kms per hour the car will no longer accelerate. It sort of jerks along like it is misfiring or something. It doesn't do this all the time, only sometimes. When this happens, if I step on the gas the transmission kicks down to first and the car accelerates just fine.

I have recently changed the plugs and plug wires and fuel filter. This didnt fix anything.

Any help would be appreciated.

Thanks

Sounds like a potential transmission/torque converter issue.

Does it have a sealed unit transmission? Or a dipstick?

If it has a dipstick start by checking the fluid level/color.