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camaro81
02/15/2007, 8:43PM
I have a 1989 5.8l ford that backfires out the intake when high reving. It idles perfect but is lacking power on the highway. What could the problem be?? Please help.

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carGrrl
02/16/2007, 7:03AM

Hello,
There could be a number of problems causing this, so your best bet may be to visit a mechanic =(.  However, if you want to check into a few things yourself first, I would recommend checking your time belt/chain.  The valves may not be properly timed, or may not be closing completely.  
Best of luck!
CarGrrl

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