kyle has gone over this subject many times. with proper maintenance dex-cool is superior. its lazy ppl that dont take care of their cooling system that gives it a bad name.

 

I bought my 98 new, dealer maintenance schedule to the T, and it happened to me 9 months after purchase.

I don't care who said what, or how many times it was covered.

I sure as F*ck wasn't lazy about my maintenance scheduled, I Operate & Erect Tower & Mobile/TrackedCranes for a living with IUOE #18 for the 2nd largest Rental outfit in the world. I know a little something about maintenance.

Dex-Cool SUX, watch who you call lazy if you don't know the facts, it could be considered ignorant

 

My buds '99 Blazer LS had a problem w/ Dexcool.
He kept the overfill bottle topped off and the fluid was alwaysup to the rad cap according to him.

It ate the core.

Before he took it in to get fixed, We hadthe engine warmed up, and Islowly turned the purge valve on the elbow above the T stat and out came alot of air. (then came out dexcool.)

I think the core had an air pocket and the coolant contributed to it's death.

Was Dexcool used for low maint/longetivity? Kind of like platinum spark plugs?

I don't know but according to a local shop grease monkey there was alot of guck in my core when I had it flushed last Feb.

It's up to you juscarter, if you want Dexcool or the regular sweet stuff put back in. Just purge it out if you can.

 

Get the facts straight before spewing FUD. GM also has been known for weak connection points where the different sections of the core come together. Dexcool DOES NOT eat gaskets or metals, PERIOD. Any further discussion on the topic of Dexcool being harmful will be removed from this thread. There is a thread already started that lays out ALL of the facts as well as dispells most all of the FUD everyone and their brother has been brought to believe as fact. Had a bad experience with it, take it up in the Dexcool thread: WHO'S HAD GOOD LUCK WITH DEX-COOL. Read it all before you reply with 'ignorant' comments (to coin a phrase used earlier here).

Oh and to all of you new guys. Typing in all CAPS is frowned upon. Please do not do it.

 

OK, to get back on topic here, i took the blaze to the mechanic this morining. ( too cold to go w/out the friggin heater). Its gonna cost alot and it sucks. Ill flush the radiator myself, so whatever. Blazinloud, thanks for all the help bro. I appreciate it. I was actually gonna wait on this, and bypass the heater core, but like i said 32degrees with the windows down on the highway is not my idea of fun on a friday night. I'll let ya know how everything works out.

 

no problem man, i just do what i can to help out......