Pontiac Grand Prix GXP Transmission issue?

Question

I have a 2005 Pontiac grand prix GXP. When I was on vacation, my car started having problems accelerating. First, it would go 20-30 mph and then I would have to step on the gas harder and rev up the rpm's.... eventually it would catch and accelerate normally. A few days later, it seemed like it was getting harder to accelerate and when I stopped at a gas station to get gas, my car wouldn't accelerate or reverse. I turned the car off.... waited a minute... and then was able to accelerate but had the same problem when I stopped at a light a couple minutes later. My car was towed to a repair place and the car repair place thinks it is the transmission pump without looking at it.

I had a transmission flush 6 months ago. All regular oil changes, etc. My car has 75000 miles on it.

Does this make sense. How much would it cost to fix? What would cause the transmission problems?

Answer 1

find a shop near you at atra.com if the shop has to guess then not the right place to be if the pump was bad or gone the trans would not move so you have another problem going on atra shop will take the time to look at it then tell you whats wrong aamco/cottman will tell you right off won't know till we take it apart

Answer 2

2005 Pontiac Grand Prix Gxp

Answer 3

I am assuming that the warranty has expired. yes it could be the pump. I am not familiar with your trans. If they have to pull the trans it will cost you but should not be to bad if it is only the pump. Does the fluid look red or brown, and what does it smell like.A brown colour and burnt smell means clutch plates. Now it starts to get more expensive. Do you trust the shop you have taken it to.If you are not sure of them it may be wise to take it to someone you do.

Answer 4

Even if it's the TC lock up(which they are known for like you said) chances are clutch material is flowing through the trans...IMO you're looking at a soft parts rebuild. Just replacing the solenoid won't fix the problem.