Check to see if your catalytic converter is stopped up. A lot times when the catalytic converter is stopped up, it will cause the check engine light to come on and make the transmission where it doesn't want to shift. Get under the vehicle, tap the catalytic converter with a hammer, and then drive it to see if there is a change. You can also check the exhaust coming out of the tailpipe. If there isn't much coming out, it is definitely your catalytic converter.
[/align][/align]im having some crapy shiffting when changing the gear ..and i was wondeirng if that can cause the problem by having a bad cat.converter?[/align][/align]monte carlo ss 3800[/align][/align]

 

highly probable... give it a try

 

Or it could be your transmission starting to malfunction. Hopefully it isn't though. When was the last time you've had a fluid/filter service on your tranny? When you pull your tranny dipstick, is the fluid frothy or dirty?

 

i had the fluid on the tranny done last year and today i looked at it its pinky alittle dirty lol......for the tranny kickin only happen to me 2 times..2 diferent days .then i parked the car and drove again an hour later and no more kickin............

so when i was readin up about teh cat. it said something to do with that....and i noticed when im going up hills or trying to go alittle faster from like 60kms.and over it feels like i lose power?.........

 

My cat threw a p0420 code, tranny seemed fine. It had more power and sounded different after it was replaced.

 

Well, give it a try, it won't hurt.

 

im gonan give it a try .....the guy that lives across from me has a brand new cat. in the box .that sounds funny . ......anyway its a magnaflow.....he only wants 50 bucks for it so im getting that today.........for 50 bucks its worth a try...

 

So he's going to let the cat out of the box eh? Sorry, terrible pun.