2003 Chevy Impala accelerating slow

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belcollege
Posts: 1
Joined: Mon Jan 26, 2015 10:08 pm

2003 Chevy Impala accelerating slow

Unread post by belcollege » Mon Jan 26, 2015 10:18 pm

I have gotten a oil change and all my fluid checked and filled, a tune up and a new battery. When I accelerate, it goes real slow then it speeds up a little and then it goes slow again. It is not my tranmission. I suspected it is my egr valve. Any ideas. Please help

 

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carriedi
Posts: 2266
Joined: Wed Apr 10, 2013 12:42 pm
Location: Oregon

Re: 2003 Chevy Impala accelerating slow

Unread post by carriedi » Wed Jan 28, 2015 3:20 am

you should have a scanner hooked up and drive it so you can see what the computer sees. Check the exhaust backpressure for a restricted exhaust... Fuel filter? (would show up in the fuel trims)

do a lot of checking before you start replacing parts
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