While driving would not shift out of first gear at the same time the power steering and speedometer stopped working

DRAY EAST

MEMBER
2009 CHEVROLET MALIBU
2.4L
4 CYL
2WD
AUTOMATIC
294,000 MILES

I was driving car it has been shifting kinda hard for couple months and all of sudden one day while I was driving down the road about 40 mph it wouldn't no longer shift out of first gear. Also power steering became hard to steer and speedometer went down to zero. I was able to drive the car to the nearest parking lot. It still cranks up fine and I can go forward and reverse. I already replaced the output speed sensor, but that didn't fix the problem. Can anybody help?

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

Hello,

It sounds like the PCM may have went out. but we should start by running the codes to see what comes up. here is a guide:

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

Please run down this guide and report back.

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Tuesday, June 18th, 2019 AT 7:04 PM

DRAY EAST

MEMBER
2 POSTS

It gave me code P0722 which is for "output shaft speed sensor no signal". I replaced it with a new one but still didn't fix problem. But I tried to drive the car and noticed that while going up a hill it would actually shift gears then after that I could get up to normal speeds of around 50 or 60 mph but of course it still shifts hard and speedometer not working and power steering is kinda hard.

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Tuesday, June 18th, 2019 AT 8:04 PM

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

When you replaced the sensor did you use an AC Delco replacement? Lets check the wiring between the sensor and PCM. here is a guide to help you and the transmission wiring diagrams below:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what happens.

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