Should I buy a 2008 GMC Yukon with blown flex fuel engine

Asked by Jun 09, 2016 at 12:07 PM about the 2008 GMC Yukon XL 1500 SLE-1 4WD

Question type: Maintenance & Repair

Just looking for some advice. I know the owner of this fully loaded Yukon. It
has the bad engine and would need a new/used engine installed. My
question is should I do this. I've read that you can plug in $200 chip that will
keep the engine in V8 mode and will disable the AFM. I don't do much
driving so having a big ride would be nice for the little driving I do. I'm told a
used engine installed would be about 3-4k parts labor. I can probabaly get
the Yukon for about $1500. Thoughts? Advice? Thanks!!!

125k on the yukon right now. Thanks for your input! I know the current
owner of the Yukon and I know the mechanic that is quoting me the 3-4k
for engine/labor numbers. I'm just curious if this is something people have
had success with given the poor performance and reputation of these

new tires last year, no engine currently so tough to say how the rest would
be, but your right, it's a gamble. I'm just attempting to mitigate risk if
possible. I've looked at websites that say their used $2,800 engines have a
5 year warranty....but curious what that really means. I'm also curious if an
engine with higher miles would be better than one with low (rationale being
that lower would have yet to experience problems while higher mileage
would indicate engine will not have these issues?)

3 Answers



4 out of 4 people think this is helpful.

Man I'd do it, it is still worth a fair amount, look into crate engines you might get a good buy and it will be new, the engines themselves seem to be pretty good, it's the other stuff that causes the problems like the AFM system, the only real detractor on this is the transmission, if you do decide to do this I would seriously consider overhauling the trans while the engine is out.


Its worth $1500+ in parts.

Your Answer

Add photo

Related Questions

Yukon XL

Looking for a Used Yukon XL in your area?

CarGurus has 11,832 nationwide Yukon XL listings starting at $2,400.


Search GMC Yukon XL Questions

GMC Yukon XL Experts

#1 FordNut
Reputation 340
#2 TK76
Reputation 290
#3 kbro
Reputation 170
View All

Related Models For Sale

Used Chevrolet Suburban
381 Great Deals out of 18,546 listings starting at $1,795
Used GMC Yukon
392 Great Deals out of 16,276 listings starting at $1,800
Used Cadillac Escalade ESV
115 Great Deals out of 5,756 listings starting at $3,500
Used Chevrolet Tahoe
602 Great Deals out of 27,562 listings starting at $600
Used Ford Expedition
385 Great Deals out of 24,130 listings starting at $1,951
Used Cadillac Escalade
253 Great Deals out of 10,461 listings starting at $1,490
Used GMC Sierra 1500
877 Great Deals out of 64,409 listings starting at $1,500
Used GMC Sierra 2500HD
133 Great Deals out of 13,898 listings starting at $2,650
Used Lincoln Navigator
84 Great Deals out of 5,487 listings starting at $3,485
Used Chevrolet Silverado 1500
1,949 Great Deals out of 159,903 listings starting at $1,995
Used Ford F-150
2,409 Great Deals out of 209,425 listings starting at $895
Used GMC Acadia
552 Great Deals out of 45,263 listings starting at $4,250
Used Toyota Sequoia
130 Great Deals out of 5,512 listings starting at $2,999
Used Cadillac Escalade EXT
36 Great Deals out of 729 listings starting at $5,450
Used Nissan Armada
125 Great Deals out of 8,556 listings starting at $3,200

Used Cars For Sale

2017 GMC Yukon XL For Sale
4,623 listings starting at $47,395
2016 GMC Yukon XL For Sale
19 Great Deals out of 1,669 listings starting at $37,495
2015 GMC Yukon XL For Sale
22 Great Deals out of 783 listings starting at $29,977
2014 GMC Yukon XL For Sale
24 Great Deals out of 369 listings starting at $19,897
2013 GMC Yukon XL For Sale
29 Great Deals out of 506 listings starting at $14,700