my 2003 chevy impala 3800 has no acceleration between one third and one half pedal after half pedal it comes on hard and I have to let up to shift properly, I have changed the fuel filter and plugs and wires. Any ideas? no trouble lights or codes....

Asked by Jul 07, 2015 at 07:24 PM

Question type: Maintenance & Repair

1 Answer

16,790

Try cleaning Throttle Body and Idle Air Control Valve. Also replace fuel filter if have not done so in a while. Add fuel injector cleaner to gas tank.

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