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BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17331
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chevy trailblazer: runs rough..reving..cold start..runs fine

Customer Question

02 chev trailblazer runs rough and stumbles on reving for the first minuter or two on a cold start in the morning but starts and runs fine after that. any ideas//
Submitted: 8 years ago.
Category: Chevy
Expert:  BOBBYSS replied 8 years ago.
HelloCustomer is the check engine light on? How many miles are on the vehicle?
Customer: replied 8 years ago.
85000 miles check engine light is on and a code of 440 something of fuel vapor leak but this problemhas been with the car before the fuel vapor leak code //i'm thinking the fuel pump installition may have triggered that code //
Expert:  BOBBYSS replied 8 years ago.
Okay. There can be a few different things happening here. At 85,000 miles you may just be in need of a standard tune up if you have not had one done. It may also be a problem with some slight carbon build up in the engine. GM also has a few technical bulletins for computer reprogramming that pertains to this type of issue.
Customer: replied 8 years ago.
i will accept after the car comes back from the tune -up