Question about 2004 Hyundai Elantra

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How do i find out what is causing such a lack of power when going up hill,its so bad that down shifting is the only way to maintain road speed...?

I have checked spark plug gaps,air filter and vacume hoses and all appears ok. The engine seems to take a little longer than expected to return to idle after you rev the engine out of gear. The only obvious thing left to mention is a hole in the exhaust pipe just before the back box at the rear of the car,could that effect performance to such a high degree...?

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Have you replaced the fuel filter . A clogged fuel filter can cause fuel filter can cause poor power problems . Try to accelerate quickly and see it the engine cuts out as it is running out of gas . If it does change the filter . Hope this corrects the problem

Posted on Dec 14, 2014

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