2006 GMC Yukon XL cracks on radiator tank .[emoji15]

[Woodblocker55]

Is this a patch or replace [emoji849]. Let me guess replace .. [emoji19][emoji3525][emoji50] yes has towing package
And all the stuff to .1500 with 5.3L
.

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[dubyagee01]

Replace. Thats where mine cracked. Mine had the wrong coolant in it before I got it. $200 or so at orielys. Yours doesn’t have the engine oil cooler so it may be less.

 

[Fless]

Be sure to get the radiator that has the restriction in the line that goes back to the surge tank, otherwise the engine won't come up to temp. OE would guarantee it having that restriction.

 

[Woodblocker55]

Replace. Thats where mine cracked. Mine had the wrong coolant in it before I got it. $200 or so at orielys. Yours doesn’t have the engine oil cooler so it may be less.

So your saying the old green style antifreeze ( yellow now ) causes this problem ?

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[Fless]

Coolant type generally doesn't matter, as long as different types aren't being mixed together. Do a good flush, use a high quality antifreeze, and change (with a flush) on a regular schedule. Lots of us stick with DexCool but others don't. It's the mixing of different types that causes big issues.

The discussion about antifreeze types is almost like the limited slip additive subject of G80 diffs.

 

[Woodblocker55]

Coolant type generally doesn't matter, as long as different types aren't being mixed together. Do a good flush, use a high quality antifreeze, and change (with a flush) on a regular schedule. Lots of us stick with DexCool but others don't. It's the mixing of different types that causes big issues.

The discussion about antifreeze types is almost like the limited slip additive subject of G80 diffs.

Guy that had it before said he flushed it and added green or yellow..

Question to order right radiator .. mines 5.3 L flex and it has tranny cooler and one in front of radiator condenser and power steering cooled in front of radiator and condenser.
But no engine oil cooling as you can see .. there must be a RPO to get right one maybe ..I'm going with ac delco one if I can .

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[Tonyrodz]

Is this a patch or replace [emoji849]. Let me guess replace .. [emoji19][emoji3525][emoji50] yes has towing package
And all the stuff to .1500 with 5.3L
.

Sent from my LGL722DL using Tapatalk

Exact same spot mine cracked too.

 

[new2yukon]

I use peak global lifetime. I've read in a number of places that air causes dexcool to gel up. Maybe chemistry has changed over the years but my risk tolerance has not.

 

[dubyagee01]

I use peak global lifetime. I've read in a number of places that air causes dexcool to gel up. Maybe chemistry has changed over the years but my risk tolerance has not.

Dexcool fails in a way that it becomes acidic. From age or air intrusion. Mixing it with any other coolant really makes a mess.

Im gong to run it again after a full flush. I have a new pump and radiator already. I am going to add a float switch of some sort in the purge tank to let me know if it ever drops. Wire it to an LED mounted somewhere in plain view.

 

[Doubeleive]

Guy that had it before said he flushed it and added green or yellow..

Question to order right radiator .. mines 5.3 L flex and it has tranny cooler and one in front of radiator condenser and power steering cooled in front of radiator and condenser.
But no engine oil cooling as you can see .. there must be a RPO to get right one maybe ..I'm going with ac delco one if I can .

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don't get confused with ordering a radiator, yours will be the 34" nothing else matters, doesn't matter if it has the engine oil cooler or not because even if the radiator has the oil cooler option it just wouldn't be used is all, makes no difference if it is 2wd 4wd awd, or if it has or does not have anything else. they all come with a transmission cooler port.
you can source a oem radiator cheaper than from the dealer at many places, just don't buy a cheap generic one and you will be fine.