Question about 2005 GMC Yukon

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2005 GMC Yukon

We have 2 codes that came on when we read the check engine ight codes. C086B and P1041. Could you please tell us what these codes are??

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I am not too aufait with these types of vehicles, but I can ssure youo that trouble codes can be found online. Go into Google.com and enter GMC trouble codes. I can't from where I am because the sites are currently blocked from viewing.

Despite that, what are the symptoms the vehicle is giving with these trouble codes?

Posted on Dec 29, 2008

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2005 gmc yukon denali xl engine fans dont come on


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Yukon XL was first showing Reduced Engine Power, then Oil Gauge quit working, now car is running hot


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2004 GMAC Yukon - check engine light went on while driving followed by lack of vehicle power. What might the problem be?


Go to your local parts store,(Advance Auto, Napa, Autozone) and get the codes read for free and they can help somewhat of what the code means. If they can't tell you what the code means tell us what the code is and we can help from there.

Jun 10, 2011 | 2003 GMC Yukon Denali

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My check engine light just came on and I had an


Check engine light means, that your engine computer pick up a bad signal from one of your engine sensor, the engine will still run good because of back up sensor's,need to have a code reading done to find out what's wrong or it will damage other sensor's, you can go to any auto parts or autozone where they can do a code reading at no charge, get back to us with the code number, so we can help you diag. your trouble code.

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Code p2120 and P2125 on GMC Yukon 5.3 2006 with low engine power message. can you please tell me whats that .


OBD-II code P2120 What does it mean? Throttle/Pedal Position Sensor/Switch "D" Circuit

Poooooooooo2125
ThrottlP2125
ThrP2125
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1 Answer

Fix for service code C086B


GMC 2000 Engin code C086B what is this code it will not go away and no one can fix it

Nov 22, 2009 | 2003 Chevrolet Silverado 1500

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I have a check engine light on dash on how do i turn it off , the rig is a 2005 gmc yukon


you can disconnect the battery and hopefully it isnt a hard code that comes right back or go somewhere to have it scanned for the code information and cleared so you can correct the issue

Oct 29, 2009 | 2005 GMC Yukon

1 Answer

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

Mar 07, 2009 | 2002 GMC Yukon XL

2 Answers

Check engine light on 2005 gmc youkon


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Jul 04, 2008 | 2005 GMC Yukon

1 Answer

'04 GMC Yukon Denali Check Engine Light


Did u put in fuel shortly before the light came on? I own 2 service centers & the most common situation with "Check Engine" lights are because the fuel cap wasn't re-installed or not tightened. When you refuel make sure it "clicks" when putting back on. We don't charge for a "Code Reading" but a dealer will, don't go there. Go, like the others suggested. If it is the fuel cap & you re-install it correctly, the light will go off after a short drive. Good Luck. PS-Don't panic when the "Check Engine" light comes on unless it blinks, if that happens don't drive. PSS-RE: Murray's, Auto-Zone.......If it's a "Code" (the reader will give a #) the code book will tell you the problem. PSSS-Some1 please have Troy W's Mommy & Daddy take away his keyboard. Just because you can put together a "Lego" car doesn't make you a master mechanic. You only repeated what we said except you have a "Napoleon" complex against any1 plugging something in to a vehicle. It's the same as plugging in a light @ home. In conjunction with "kinder" nine out of ten time in my experience it usually is the oxygen sensor(s) which would be about right with the year model

May 18, 2008 | 2001 GMC Yukon Denali

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