2002 GMC Yukon XL "replace spark plug" Questions

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...spark plug wire from the spark plug. â?¢ Twist each spark plug wire 1/2 turn. â?¢ Pull only on the boot in order to remove the wire from the plug. Loosen the spark plug 1 or 2 ...

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...replace spark plugs in 2002 GMC Yukon This is normal for the boots to be stuck on it is a very tight fit to begin with and the heat that is generated around them cause them to stick. Try rotating the ...

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Question about GMC Yukon XL

3 Answers

...spark plug. You may have low compression, timing belt or chain should be checked as well. Check the computer system in your car. Is your check engine light on? Maybe your crank sensor is not working ...

...and possibly try to check the individual spark plugs. The easiest and safest way to do this is by using an induction timing light and look for inconsistencies in the spark pattern of each plug

Question about GMC Yukon XL

2 Answers

spark, the only other problem will have to do with compression, you can check this with a guage screwed into the plug hole. If you have very low, or no compression, you likely have a valve leak, could

Question about GMC Yukon XL

2 Answers

replace spark plugs and wires ive found easiest access is to lower inner fender walls and change plugs from there I'm not certain what information you need, but if you purchased new plugs and wires ...

replace all 8 spark plugs, air filter and basic oil and filter change; use good brands of oil, such as castro, mobile, shells ect. if your the original owner and have high miles and never have replace

Question about GMC Yukon XL

1 Answer

...spark plug wires. Now engine light is off and it runs smooth except every three or four days, I will start it up after not running for a few hours and the motor runs very rough and does that for a ...

...AND IT HASN'T STARTED SINCE, ITS JUST WANTS TO BUT WON'T STAY RUNNING pull a spark plug and check for being wet with fuel. if so replace all plugs once they are fouled they will never come out of ...

...BE DIRTY FUEL INJECTORS LEAKING WHILE ENGINE OFF FLOODING OUT SPARK PLUGS.TRY THIS REPLACE AIR FILTER.CLEAN FUEL INJECTORS BY ADDING A BOTTLE OF SEAFOAM TO 3/4 TO FULL TANK OF GAS SEE WHAT

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