Question about 2000 GMC Jimmy

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2000gmc jimmy where do i start ckecking for leak

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  • Anonymous Mar 26, 2014

    need to know how to remove plug wires

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When confronted with a P0442, many techs impulsively replace the cap, as it has been found to be responsible for a fair number of large-leak evap DTCs. Caps that are incorrectly installed following a fill-up also contribute to this problem. But as you know, vehicles with enhanced evaporative emissions systems, are very sensitive and will detect leaks that are much smaller than those resulting from a defective or loose cap. In fact, leaks as small as .040 in. can be detected.

Posted on Jul 05, 2008

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I have a 2000GMC jimmy at different speeds there is a.bad swaying in the rear of it


Your rear tires are either badly under inflated or worn out. Check the tire pressure.If the tires are inflated-about 35psi-go to a mechanic. If the problem isn't the tires, it is ptobably a suspension component. Have you hit something big lately?

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My 2000GMC Safari after driving for about 5 miles will start to misfire and when i stop at an intersection the engine will idle rough then smoothing out


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1 Answer

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There are a few things to check: First, check the fuel filter to see if it's clogged. Next, clean out the air filter. Next, look and see if the spark plugs have fouled, or are bad. Spray in some injector cleaner, and maybe some SeaFoam if you believe in it (I do, heavier based oil should push it out, if not all that powerful as it claims). Check the timing, and check the valve timing. You might even do a vacuum check on the intake. Failing that, it's time for help with the computer, or it may be a worn out motor.

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1 Answer

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check fuse then check fuel pressure if you have fuel pressure then spyder injectors possibly bad

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1 Answer

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SCAN IT SOUND LIKE IDLE SPEED CONTROL PROBLEM.BUT I AM LOOKING AT VACUUM LEAK AT THE INTAKE MANIFOLD BROKE VACUUM HOSE. OR FUEL INJECTORS SEALS LEAKING.

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did you check fuel pressure,check for spark

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Sounds like the head gaskets are leaking.

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1 Answer

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ckeck to see if there is any leakes around the heater core or hoses .ckeck the bottom hose i had a leake problem and it was comeing from the bottom hose

Oct 07, 2008 | 2001 Kia Sephia

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