OK Please Disregaurd the first acclaim acting up. Ok so my tranny is acting up the fluid is ok there are 149000 miles on it, 3.0 L engine. Now For Some Reason When I Get Going It Sometimes works fine but when i hit 45/55 it gears down or something, anyone out there know anything about this...

is there a rattle sound in your exhaust?

There Is Some Sound Coming From It But It Sounds Like An Exhaust Leak..

i was just asking because if you have a catalitic converter that's old it falls appart, the pieces can block the exhaust. between this thread and the other, it sounds like your car has more than one problem...maybe

I Will Def Have To Look At That Thank You...

a cat will normally last 100k or 10 years

Well Then Mine Is WAY Past Due.....

it could be, but it could still be good. you're not getting a check engine light, are you?

shots in the dark...

Well I Gettin A Check Engine Light But I Forget The Rest Of The Codes In There Something With The Cruise Control And The EGR Value..

egr valve could be your issue, that's a damn good posibility. are you mechanically inclined? i'm sure someone could tell you how to clean it, not i though

If Someone Told Me How To I Could...

I dont see how an exhaust clog would make it not shift into higher gears??? Someone care to explain???

i think he has trans problems and others. your cat being clogged can prevent you from going fast, it can even cut off your car. a clogged egr, that'll kill power and everything as well. if his car is throwing codes for that, egr is one of the problems.

I dont see how an exhaust clog would make it not shift into higher gears??? Someone care to explain???

SIMPLE. comp. controled trans. gets signals from comp. comp, gets signals from various sensors, including egr..ect, wich if not working properly would send wrong signals, thus trany might think, you are going 30mph, while you are not. governor inside the trany can also misslead trainy's logic. vacum magulator can also be responsible. a chanel in valve body can be obstructed, and it won't shift.
but most likely his trany is shot, at 149000 miles, without changing oil and filter after each year(that what i allways do, and never had problems with trany.) clutch discs are probably grinded to nothing.

Well I Found Out What Was Wrong With My Tranny. There Were Codes 53,31,46,54, And Broken Overdrive Snap Ring Or Burnt Overdrive clutch...