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Category: Chevy
Satisfied Customers: 24101
Experience:  ASE certified tech ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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Stalls shortly after startup and periodically during the

Customer Question

Stalls shortly after startup and periodically during the day. Changed evap canister purge valve and problem continues.
JA: Is the check engine light on? Does the car stall at idle or when driving?
Customer: Check engine light was on but cleared when changed valve. And yes it will stall while driving
JA: What is the model/year of your Chevy?
Customer: 2007 Malibu LT 3.6 liter engine
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: Yes, I smoked the intake, didn't open the throttle body. Still didn't see any smoke.
JA: Anything else you think the mechanic should know?
Customer: It would be helpful if I had a vacuum hose diagram.
Submitted: 1 month ago.
Category: Chevy
Expert:  AMEDEE replied 1 month ago.

Hello and welcome! My name isCustomerand I can assist you with your question. Have you checked for codes in the computer?

Customer: replied 1 month ago.
cleared them after changing the evap canister solenoid. Codes were P0455 and P0490.
Customer: replied 1 month ago.
Also, long term fuel trim was in negative before changing the valve.
Expert:  AMEDEE replied 1 month ago.

Thank you for that information. Based on my experience, this stalling condition is most likley caused by a bad or dirty throttle body. Both are very common. I would start by cleaning the throttle body and throttle plate first with some throttle body cleaner and a soft wire brush and driving it around for a bit so the computer can relearn the idle. If the problem persists, replace the throttle body.

Customer: replied 1 month ago.
I will give it a try. Where can I get a vacuum hose diagram for the 2007 chevy Malibu?
Expert:  AMEDEE replied 1 month ago.

I would try this site..

Expert:  AMEDEE replied 1 month ago.

I am glad I can help!

It has been a pleasure working with you. Please dont forget to honor your good faith deposit by rating my answer as "Excellent Service" for assisting you today.

Please let me know if you have any further questions.

Customer: replied 1 month ago.
Thank you
Expert:  AMEDEE replied 1 month ago.

Your welcome!

Expert:  AMEDEE replied 1 month ago.

Please dont forget to rate. Have a great day!

Expert:  AMEDEE replied 1 month ago.

You should see the rating system towards the top of the page.

Expert:  AMEDEE replied 1 month ago.

Hello! It'sCustomerfrom just answer.

I am just checking in to see if you need any further assistance?

Let me know!