give gas but get no power

By BAT
March 8, 2005 in Ask A GM Technician

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BAT

Posted March 8, 2005

My 99 Yukon drives but when you go to give it gas it lags real bad. Just changed the fuel filter. The engine is lacking power. Help.

GM-Tech

Posted March 9, 2005

Without some basic diagnostic information, one can only guess. My guess would be, restricted exhaust, low fuel pressure, restricted air intake, and so on.

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