Question about 2006 Buick LaCrosse
My heater core is leaking. No heat and major antifreeze smell when heat turned on. I've changed out every other component of the coolant system myself (new radiator, hoses, thermostat, water pump, coolant reservoir). Trying to avoid the outrageous price a shop will charge me for installing a $50 part. Need instructions for heater core change with pics if possible (I'm not very savvy on the technical terms in the online manuals). Any help would be greatly appreciated. Thanks
THIS IS A JOB FOR AN EXPERIENCED MECH. TAKE IT TO A MECHANIC WHO DOES SIDE WORK.
Posted on Nov 09, 2014
A shotgun approach to repairs can really rack up the bills.
If your symptoms are loss of water and you have replaced the thermostat, you more than likely have an issue with steam. And that steam more than often comes from a bad head gasket. Most head gasket gasket failures seem to be confined to the water side initially, but let it go on bigger damage will occur.
You can buy a litmus test strip to dunk in the coolant. It will indicate if there are exhaust residuals in the water and thus a gasket failure.
However it may just be something simple, given that you have just about replaced everything:
have you given the radiator a good hosing inside and out?
is the radiator fan running when it should be?
Posted on Sep 07, 2008
Visit the autozone.com website and register the car information. It doesn't cost anything and you will have access to an online repair manual for the car. The steps for replacing the water pump should be available there. It's a handy resource. Hope this helped and best wishes.
Posted on Sep 12, 2009
first check to make sure the cooling system is not air bound,takes a while to bleed off the air,try this and get back to me Thanks Ray
Posted on Nov 13, 2009
SOURCE: 03 Buick Rendezvous Overheating
If the top hose is hot and the bottom is cold, your definitely not getting circulation. You,ve already done alot of work to this vehicle so you have pretty much answered your own question. About the only thing left is the heater core. Of course, I dont want to be the one to tell you it is definitely the heater core because obviously I am not looking at the vehicle. But If i was a betting man, thats where my money would be.
Posted on Dec 14, 2009
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