Question about 2003 GMC Yukon
Hey, Front is 6.5"Rear is 5.25"The front opening is 6.75" but it will still accept a 6.5" and mount fine.Hope it helps.
Posted on Dec 30, 2012
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Posted on Jan 02, 2017
I don't know if you already fixed it, but I had the same problem on my 03 yukon, TysonRicky is right. In my case it was the blower control module. You can find it right under the glovebox. It cost me close to $100 for a new one, but very easy to replace. Can't even imagine how much it would've cost me if I had a mechanic do it.
Posted on May 19, 2009
SOURCE: 2003 GMC Yukon - fuel pump
Check your ECM fuse. There should be 2 fuses for your ECM. It's the ECM that controls the function of the fuel pump. Good luck friend and it's also common for the wire harness from the frame to the fuel pump to go bad due to corrosion from the bad weather we get in the winter and rainy spring and fall.
Posted on Sep 04, 2009
SOURCE: Gmc yukon stuck in park.
possible brake switch not sending signal to shifter solenoid to allow shifter movement. possible broken shifter knob/relay rod in shifter assembly
Posted on Nov 15, 2009
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