Will go in reverse then when shifted into D nothing will not Move?

JZA62

MEMBER
2004 CHEVROLET MALIBU
3.5L
V6
2WD
AUTOMATIC
215,000 MILES

Car will go in reverse then when shifted into D nothing will not move. But when I shift into L car it will drive and go through gears and once I get up to 45 or 50 MPH I can shift up to D and hit highway speeds no problem.

Tuesday, August 9th, 2022 AT 6:02 PM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

It sounds like the pressure control switch is not working but we should run the codes first, you can get a code scanner from Amazon for about $20.00.

Here is a guide/video to show you how:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is how you can change the pressure control switch out int he images below. Check out the diagrams (below). Please let us know what happens.

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Wednesday, August 10th, 2022 AT 9:58 AM

JZA62

MEMBER
2 POSTS

Thank you for the info. I have a scanner and I'll check to see if there are any codes. I didn't check before since the check engine light didn't come on or any other warning lights. I appreciate the diagrams but can this procedure be done without taking the transmission out or dismantling have of the under carriage?

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Thursday, August 11th, 2022 AT 9:48 AM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

This is a difficult job to do unfortunately. I have seen people drop the cradle and tip the engine and transmission downward to get the pan off of the side, you will need a top engine support like this. Check out the diagrams (below). Please let us know what happens.

Image (Click to make bigger)