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BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17406
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2002 chevy Malibu 40,000 keeps shifting hard and stalls out,

Customer Question

2002 chevy Malibu 40,000 keeps shifting hard and stalls out
JA: Is the check engine light on? Does the car stall at idle or when driving?
Customer: yes engine light on and when I slow down.
JA: Are you fixing your Malibu yourself? What have you tried so far?
Customer: replaced the sensors it said needed it and no i brought it to a shop
JA: Anything else you want the mechanic to know before I connect you?
Customer: mass air flow replaced and tpsreplaced
Submitted: 10 months ago.
Category: Chevy
Expert:  BOBBYSS replied 10 months ago.

Hello, my name is***** you remember what the codes were that the computer was giving? Does it do this everytime you drive it?

Customer: replied 10 months ago.
p0121 and p0101
both have been replaced. also the transmission fluid changed. the mechanic said there was a sensor inside the transmission that also came up on a code for him but he couldn't get to it without dropping transmission
Customer: replied 10 months ago.
when i am driving sometimes it jerks at higher speeds because it wont shift or down shift
Expert:  BOBBYSS replied 10 months ago.

Thank you. I would like to know what that other code is. It sounds like it has a pressure issue within the transmission which is usually caused by the pressure control valve. These fail a lot on this vehicle, and yes the transmission would need to be dropped to access it.

Customer: replied 10 months ago.
i cannot get that until tomorrow when i can call the mechanic
Expert:  BOBBYSS replied 10 months ago.

That is fine. If you can get that to me it would help.

Customer: replied 10 months ago.
i will thank you
Expert:  BOBBYSS replied 10 months ago.

Have a good rest of your day.