Question about 2000 GMC Yukon XL

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What does the solid yellow check engine light mean?

I have a 2007 GMC Yukon XL and the check engine light is on. It is solid and I notice the idle is rough. What does this mean?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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PyroPCMan
  • 405 Answers

SOURCE: 2002 Yukon XL Denali Problem: When

Most sensors will trigger the check engine light, however the TPS(throttle position sensor) or EGR Valve(exhuast gas recirculation valve) could be potential causes. Does this problem only occur at idle? Is the idle normal in park? Let me know and I can try to assit further.

Hope this helps

Posted on Jun 27, 2008

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  • 99 Answers

SOURCE: 2002 yukon xl no power check engine light

FROM: LustyKid

Denalis are famous for clogged fuel filters. Change the fuel filter first and see what happens, Get the code for the check engine light. It could be you have a clogged EGR ports. Remove EGR valve and clean out the ports, replace with new gasket and see what happens. Advise of results.

Posted on Dec 02, 2008

big tv set
  • 25 Answers

SOURCE: PO305 Code on 2002 Yukon XL 5.3L

You probably have water in your fuel . Use some Stabil healthy dose and then some isopropyl alcohol gas line antifreeze that Will probably fix it . and fill it at a popular gas station , not a little station that only sells a little gas. Its either that or you might have a pluged cattalyitic converter. Try this site . http://www.obd-codes.com/forums/search.php?search_id=active_topics

Posted on Mar 09, 2009

  • 1608 Answers

SOURCE: check engine light on 2004 GMC Yukon XL

Code po449 is the canister vent valve solenoid error.This is a common problem with these valves because they are under the truck in the rear by the spare tire and they get all the dirt and water and snow,if you live in an area where you get snow.You will find it on the canister under the vehicle by the spare tire.

Posted on Nov 18, 2009

joshnaz
  • 186 Answers

SOURCE: how do you reset the check engine light on a 2003

the check engine light means you have a trouble code in your vehicles computer. After fixing the problem with the yukon the check engine light can be reset sometimes by disconnecting the battery and disconnecting the ECM fuse. Although some parts stores are known to check your codes for free they might also clear them with a scan tool.

Posted on Feb 26, 2010

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How do I reset the ECM?


2003 GMC Yukon XL check engine light run - YouTube

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Oct 02, 2015 | 2003 GMC Yukon XL

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My 2001 Yukon XL will tap when idling and the check engine oil pressure light comes on until I give it some gas then it goes away and tapping stops. What is this problem?


Without hearing it, I can only guess. Collapsed lifter or loose connecting rod bearing.

High miles? Maintenance not done on schedule? That would do it.

Oct 18, 2014 | 2001 GMC Yukon XL

1 Answer

Rough idle and engine vibraton


Some gaskets have been known to fail and cause vacuum leaks, it happened on mine. I took it in to have them checked/replaced.

Jan 19, 2014 | 2007 GMC Yukon XL

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2001 GMC Yukon XL 5.3L - Engine Timing


Doubt it. try a code reader. Sound like an emissions problem

Apr 06, 2010 | 2001 GMC Yukon XL

1 Answer

How do you reset the check engine light on a 2003 gmc yukon xl


the check engine light means you have a trouble code in your vehicles computer. After fixing the problem with the yukon the check engine light can be reset sometimes by disconnecting the battery and disconnecting the ECM fuse. Although some parts stores are known to check your codes for free they might also clear them with a scan tool.

Feb 26, 2010 | 2003 GMC Yukon XL

2 Answers

2002 Yukon XL Denali Problem: When idling, goes below 500 RPMs, spits and sputters at idle. No check engine light, spark plugs are one year old. Could it be a sensor??


Most sensors will trigger the check engine light, however the TPS(throttle position sensor) or EGR Valve(exhuast gas recirculation valve) could be potential causes. Does this problem only occur at idle? Is the idle normal in park? Let me know and I can try to assit further.

Hope this helps

Jun 27, 2008 | 2002 GMC Yukon XL

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