Question about 1999 Chevrolet Cavalier

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99 chevy cavalier power problems

Why does my 99 chevy cavalier lose power uphill at a certain speed? i did change the fuel filter but that was a week ago.

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Try spark plugs if not that then wires

Posted on Nov 22, 2008

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1 Answer

Why does my 94 Chevy truck lose power going uphill


Chances are good your fuel filter is clogged, not allowing enough fuel to the engine for the high demand it has when going uphill.

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air filter really dirty, injectors stuck open. fuel pressure regulator is bad.

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While driving my 1997 cavalier on the interstate last week, I was going uphill and I felt less power than usual. Then I saw a cloud of black smoke behind me. This has happened 3 times. I do not lose power...


Start with checking the air filter.The black smoke means to mutch fuel and not enought air.You may want to clean your Mass Air Flow sensor as well. The have spray cans of MAF cleaner at any auto parts store and you should clean it with every air filter change.Just be sure to unplug harness before you spray it.Well good luck and hope this helps.

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My olds silhouette, (2000) has 100,000 miles and seems to loose power when traveling uphill after it has heated up after 70 or 80 miles travel. Could it be the fuel filter or a weak fuel pump?


You could very well have a pump that is weak and loses some of it's pumping power after it has gotten fully warmed up. Have you ever noticed a temporary improvement in power after refiling with cool fuel? A test drive with a fuel pressure gauge should tell the tale about pump condition. Usually a restricted filter will cause a starvation problem all the time instead of just after a long drive. It certainly wouldn't hurt to change the filter but I doubt that it is your problem.

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How do i change the fuel pump on a 2004 chevy cavalier?


you will have to drop the fuel tank ,remove the straps while supporting tank,remove fuel lines and vent lines,lower to ground ,remove ring that holts pump ***. in tank.Be certain to change filter and strainer

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1 Answer

Losing power when I accelorate.


Fuel filter is the main culprit when you lose power going uphill. Going level or downhill means that the engine doesn't have to work all that hard and doesn't demand much fuel, so a partially clogged filter can usually flow enough to allow the car to run smoothly. Going uphill requires signficantly more fuel, and if the filter is clogged up, it won't be able to flow enough fuel. This will bog the car down and cause you to lose speed. Change your fuel filter.

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yeah it could be full of water in the gas you bought. see if you can pull a sample and check. start looking at the filters.

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1 Answer

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when was he last time you changed the fuel filter ? change it and see how much cramp is in it ina glass

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