What's wrong with my 04 Yukon 5.3l vin z? Check engine light on and flashes when engaging passing gear. I've replaced plugs wires air filter and fuel filter and its worse now? I'm baffled

Asked by Oct 02, 2013 at 06:01 PM about the 2004 GMC Yukon SLT

Question type: Maintenance & Repair

Truck ran and idled fine now runs
rough after replacing everything
stated above right bank cat reads
almost 200 degrees hotter than the
right. What would make my truck run
properly?

1 Answer

98,345

Get the codes pulled then repost them back here and someone will help you further with diagnosis.

Your Answer

Add photo

Related Questions

Search GMC Yukon Questions

GMC Yukon Experts

#1 clayduster71
clayduster71
Reputation 2,540
#2 David Boccabello
David Boccabello
Reputation 780
#3 Drpsychmom
Drpsychmom
Reputation 650
View All

Related Models For Sale

Used Chevrolet Tahoe
616 Great Deals out of 36,026 listings starting at $1,800
Used Cadillac Escalade
216 Great Deals out of 11,009 listings starting at $2,900
Used GMC Yukon XL
224 Great Deals out of 12,948 listings starting at $1,495
Used Chevrolet Suburban
273 Great Deals out of 20,216 listings starting at $1,195
Used GMC Sierra 1500
779 Great Deals out of 67,901 listings starting at $1,800
Used Ford Expedition
390 Great Deals out of 21,971 listings starting at $1,500
Used Chevrolet Silverado 1500
2,125 Great Deals out of 183,385 listings starting at $1,900
Used Ford F-150
2,217 Great Deals out of 180,842 listings starting at $1,500
Used Jeep Grand Cherokee
916 Great Deals out of 70,536 listings starting at $995
Used Ford Explorer
811 Great Deals out of 62,484 listings starting at $1,495
Used Toyota 4Runner
232 Great Deals out of 21,052 listings starting at $1,500
Used Dodge Durango
281 Great Deals out of 20,105 listings starting at $999
Used Nissan Armada
149 Great Deals out of 8,862 listings starting at $3,977
Used Toyota Sequoia
117 Great Deals out of 5,347 listings starting at $2,695

Used Cars For Sale

2017 GMC Yukon SLT For Sale
19 Great Deals out of 1,743 listings starting at $41,988
2016 GMC Yukon SLT For Sale
3 Great Deals out of 121 listings starting at $38,377
2015 GMC Yukon SLT For Sale
6 Great Deals out of 175 listings starting at $33,975
2014 GMC Yukon SLT For Sale
3 Great Deals out of 56 listings starting at $18,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.