Asked by Mar 21, 2018 at 12:09 PM about the 2008 GMC Yukon

Question type: Car Customization

I have an 08 Yukon. It's has the 6.0L
hybrid motor.  I use it to pull my 32 foot
camper.  It does great except the temp
rises well above normal when going
uphill.   My question is, if I add an after
market transmission cooler will that
eliminate the high temps?

1 Answer


You need to find out if it is the transmission that causing the overheat or the engine itself. On all my rigs that IO have used for towing I put on a very big transmission cooler and bypassed the cooler in the radiator, this has dropped my transmission fluid temperature to about 145 to 165 degrees under load, around 120 normal driving, couple that with RedLine tranny fluid and you should be good to go on tranny cooling. If it is engine then the radiator is not big enough or you have flow problems. Check with you local parts store and see if aftermarket make a larger radiator that will fit your existing mountings. Flow problems could be a bad water pump, thermostat not opening fully, hoses collapsing under load. HTH

Your Answer:

GMC Yukon Experts

  • #1
  • #2
    David Boccabello
  • #3
View All

Related Models For Sale

Used Chevrolet Tahoe
15 Great Deals out of 1,120 listings starting at $4,999
Used Cadillac Escalade
11 Great Deals out of 764 listings starting at $3,700
Used GMC Yukon XL
6 Great Deals out of 861 listings starting at $4,500
Used Chevrolet Suburban
13 Great Deals out of 709 listings starting at $4,395
Used GMC Sierra 1500
85 Great Deals out of 9,169 listings starting at $3,999
Used Ford Expedition
18 Great Deals out of 395 listings starting at $4,595
Used Cadillac Escalade ESV
5 Great Deals out of 298 listings starting at $12,999
Used Chevrolet Silverado 1500
89 Great Deals out of 9,558 listings starting at $3,500
Used Ford F-150
176 Great Deals out of 11,005 listings starting at $1,900
Used GMC Acadia
29 Great Deals out of 2,524 listings starting at $3,995
Used Jeep Grand Cherokee
75 Great Deals out of 4,323 listings starting at $5,499
Used Dodge Durango
35 Great Deals out of 1,185 listings starting at $4,480
Used Toyota 4Runner
19 Great Deals out of 530 listings starting at $3,500
Used Ford Explorer
38 Great Deals out of 2,416 listings starting at $3,995
Used Lincoln Navigator
12 Great Deals out of 107 listings starting at $3,999

Used Cars for Sale

2019 GMC Yukon For Sale
851 listings starting at $61,450
2018 GMC Yukon For Sale
6 Great Deals out of 148 listings starting at $41,999
2017 GMC Yukon For Sale
64 listings starting at $38,700
2016 GMC Yukon For Sale
54 listings starting at $39,450
2015 GMC Yukon For Sale
33 listings starting at $35,888

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. Content will be removed if CarGurus becomes aware that it violates our policies.