Question about 2003 Chevrolet Avalanche

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Decreased acceleration, slow take off - 2003 Chevrolet Avalanche

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Check/replace your air and fuel filters. You could also have some dirty injectors. buy a QUALITY injector cleaner such as lucas and run it through your tank. I use it in my 04 Avalanche and I have 80,000 miles with no problems. If air and fuel are ok it may be time for a tune up.

Posted on Jul 15, 2009

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Have fuel pressure checked out first fuel pumps going out on these are common if it's bad DON'T BUY A CHEAP PUMP UNLESS U WANT TO CHANGE IT AGIAN SPEND 50 OR 75 BUCKS MORE AND GET AN AC/DELCO PUMP IT'LL PAY OFF TRUST I DO THIS EVERY DAY good luck oh change fuel filter first that's cheapest

Posted on Jul 15, 2009

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If no codes or check engine light, then I'd start by changing fuel filter. When was tune-up, & filters changed last?

Posted on Jul 15, 2009

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