Question about Cars & Trucks
My guess is the heater matrix (Radiator) is blocked. Start up and get the water warmed up. Look on the bulkhead and trace where the feed and return pipes, approx. 1"diameter are, and see if they are as hot. If there is a big difference then it is likely the flow is low. There is no real way to unclog the matrix other than replacement. Check also to see if operating the heater controls opens a valve, in which case see if its operating properly. That will be down by the heater assy.
Posted on Nov 18, 2014
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Posted on Jan 02, 2017
SOURCE: Water pump on 2005 Chevy Equinox
Water pump is locate on the front center of the engine.
I will rate water pump change as a 7/10 in difficulty scale.
You should check for special tool(s) requirement from the library before you start.
It's a good time to change the drive belt at the same time.
50/50 coolant mix is fine.
If you haul heavy load or in cold climate then bump it up to 60/40 mix
DO NOT FORGET to find or draw the belt routing diagram before you undo the tension.
A 30 second sketch will save you a lot of time.
Posted on Jul 15, 2009
the flap in the air box may be broken or not ingageing all the way check for vac leaks and switch the air from defrost to vent and see if its working properly
Posted on Jan 05, 2010
I don't know your vehicle, but does it have a blower door tucked in where the heater core is? If it DOES and that's broken then it could be the whole problem. It would mean it isn't switching from the A/C side of things to the heat side of them. Hope this helps, good luck! Also, just looked up the proper name for what I'm talking about, it's called a "blend door" and I think your car has one. It's what I would check, again, good luck!
Posted on Jan 20, 2010
[check fans possible bad sensor or fan motor ]<<< most likely problem/or radiator and reservoir may need to be flushed the 05 was known for having radiator hose problems the hoses in some would deteriorate causing a smell and overheating problems --the other 05 problem was head gasket which can cause the overheat problem but u would have other symptoms rough idle ,steam from tailpipe,oil level high and looking like chocolate milk the 05 problems usually caused the problems early in ownership within 10,000 miles and recheck stat and pump new doesnt mean free from defects
Posted on Jan 25, 2010
Hi, if you have searched this problem recently on this car you will find that there is an issue with this particular engine (3.4 litre) that GM used on various vans and SUV's and the DEX coolant that is reccomended for this engine. Apparently the coolant corrodes the aluminum parts (intake, gaskets) causing them to deteriorate faster. I have had the unfortunate experience with this issue. First it was diagnoised as a cracked lower intake- car was leaking oil. Had that fixed but overheating issues persisted. Tried flushing the coolant but that only solved the problem for a few weeks and overheating started again, and coolant was boiling over in the reservor. Finally took it to GM (was having my own mechanic fix it prior to this) and they just called to say the gaskets are leaking into the combustion chamber and that is a $2000 (canadian) job. IF they find that one, or both the gaskets (there are 2) are also cracked (unlikely that both would be cracked) it is a $3000 job. I am considering trading in my car to the GM dealership. Only offerring $2000 for trade in as is. My advise is get your car to a GM service shop so the problem is properly diagnosed. I was told that I may have had this fixed under warranty if my vehicle dd not have 176,000 KM on it. Not sure if this is BS. Please connect with me here and let me know of your progress. I am stuck without a car and have a huge decision to make. I have been on tons of forums and there has not been one concrete solution that I found prior to taking it in to GM.
Posted on Dec 07, 2011
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