Heating AC and Engine Cooling
Jeep Wrangler Sport
Heating Ventilating and Air Conditioning

Why would the heater in a 1996 Blazer make the cab smell like hot water even after having the system flushed with a new thermostat and new radiator cap?

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2005-11-12 14:46:53
2005-11-12 14:46:53

You have a bad heater core the heater core is a small radiator type unit under the dash of your car that sends hot water from the cooling system runs through a fan blows on it and warm air comes out. It is in the cab under the dash and it is leaking that why you smell "hot water" You need a experienced mechanic or get a book Chiltons if you what to fix it yourself

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If your radiator isnt leaking and car is having a over heating problem and coolant spewing out. Chances are your thermostat needs replaced. possible the radiator needs to be flushed. But more likley its thermostat

Either: 1) Thermostat is bad or 2) Radiator is clogged or 3) if your losing fluid or hearing a noise, check your water pump. If your not losing fluid or hearing a noise, the service the radiator by having it flushed. If this doesn't solve your problem, then change the thermostat. If your still having the problem then your radiator may need further service or even replacing. I'm having the same issue right now. I'm replacing my thermostat next. If it still is running hot, I'm going to take the radiator out and have it serviced. Good luck! And remember, DONT let the temperature get in the red!!

Have your radiator tested at a radiator shop, replace the thermostat, and if it was mine I would replace the water pump also. If fluid is leaking from under the front snout of the water pump, it needs replaced. If there is either white slurry in your oil or excess gas and black oil floating on top of your coolant, you may have a head gasket or cracked head causing the overheating. In most cases having the radiator cleaned/tested and a new thermostat should fix the problem.

I have a 1999 blazer. The heater core clogs up about once a year from the Dexcool. Try having it (heater core) flushed and use Prestone (Extended life) instead of Texaco.

You need to replace the thermostat and flush the system of crud.

Oil can do that. Check your head gasket. also check thermostat to make sure its opening. intake leaks can cause this. mixing different types of coolant...using stop leaks...not having cooling system flushed reguraly can all cause these symptoms as well as head gaskets.

Bottom of the engine where the lower radiator hose connects. Besides having to lay on the floor, it is easy to replace.

Find and disconnect the upper radiator hose. This will be a hose going from the top of the radiator to the top of the engine block somewhere. The upper radiator hose attaches to the thermostat housing, which is usually secured by 2 or 4 bolts. The thermostat is inside and you will probably need a pick to get it out. Having said that, your thermostat probably isn't the problem if you are overheating. GM motors have really bad intake gasket design, which can cause your car to leak coolant, which will in turn cause it to overheat.

I was having the same problem with my car. When you take the thermostat out it will automatically read cool. But I later found out that I had a leak in my radiator and had to replace it. Turned out that my heads are warped and was leaking oil into my water and into the radiator itself. Once i replaced the radiator its been fine.

If you haven't done this, I would try a new Thermostat first I had the same problem and it was a clogged heater core , Try having it flushed out

follow your lower radiator hose from radiator to engine block ----- thermostat is inside plastic looking housing that bolts with 3 bolts there ----- comes as complete unit (thermostat & housing) from manufacturer and aftermarket as far as I know and runs around 150.00 ----- having cooling problems with my 01 2.3 now and just replaced it

So far you've done all the right things. Have you considered also having the radiator flushed? Have you replaced the hoses? As the hoses age, they get soft and can collapse when under suction by a properly operating water pump.

All you should need to do is follow the upper radiator hose back to the motor, Un-screw the bolts at the engine, lift and you will find the thermostat. If it has a rubber gaskit you should be able to reuse it.AnotherDon't reuse gaskets. They're a $1 part and over time they do become dried out. It's not worth having to dismantle the thermostat housing again when your gasket becomes completely shot. Do the job right the first time! Dawn

always use manufacture specified fluids for your vehicle, it will say in the owners manual and in the engine compartment somewhere close to the overflow resivoir

There should be two hoses connecting your radiator to your engine. Follow the lower of the two hoses from the radiator to the engine. The hose will be connected to the thermostat housing near your distributor, towards the back of the engine. Having reasonable workspace on the passenger side of the vehicle's engine compartment will help while replacing the thermostat there are two hoses coming from your radiator. where the top one connects to the motor is the location of the thermostat there is a coupler there with two screws take that off to reveal the thermostat also you need to replace the temp sending sensor located right next to the sensor has wires coming from it ask someone to show you hard to explain Follow the big upper radiator hose down to the engine. The hose usually is attached to the thermostat housing. its the lower hose its in the cast aluminum assy under and slightly behind the distrubutor.

im having the same problem with my 1994 I've replaced the heater core,thermostat,radiator,i checked the coolant, and it's not over heating or nothing and still no heat lol

== try changing the thermostat. Make sure system is not air bound Replace radiator cap Make sure hoses are not collapsing under pressure

If you live in a warm climate you don't need a thermostat as much as if you live in a temperate zone. The function of the thermostat is to let the engine heat up to a certain temperature before allowing the coolant to flow through the engine. If you don't need heat or if the thermostat is bad, sometimes it's easier to just take it out and let the engine run cool than to bother having it heat up.

You are screwed! Get that radiator flushed by a profesional ASAP! ANOTHER SUGGESTION DO NOT RUN THE MOTOR HAVE IT TOWED TO A PROFESSIONAL. IF YOU DID RUN THE ENGINE GOODLUCK BUDDY HOPEFULLY IT DIDN'T AFFECT THE ENGINE IF SO YOUR GONNA HAVE A HELL OF A TIME REPLACING ALL THOSE HOSES AND YOUR RADIATOR AND HAVING YOUR COOLANT LINE REPLACED.

A primary benefit of having radiator shelves is that installation of them creates more storage in any living space. A second advantage is that radiator shelves can increase the beauty of a room.

change your oil asap. and check your coolant level, you may need to have your radiator flushed and filled, but just having an oil change could take care of your problem. hope this helped : )

Ok. I am having this problem too. I was told that I need to replace the thermostat. If you have already done this then there is one other thing that I can think of to do. On the radiator there should be some kind of release for air. This needs to be opened when you fill the radiator. If you need more info you can email me at snipermcguns@hotmail.com

i am not a fan of "flushing " out radiators, drain and refill with new antifreeze,yes,ok but do not "flush". The reason is at time of Mfg of the radiator ,they put in stop leak from factory to fill up little micro holes in the mfg. process.So... if you do a " flush " guess what ,you remove all the stop leak from the radiator and you guessed it ! it starts leaking, Hmm i wonder why ? just drain and refill with a good brand at the right mixture. I get more cars come to me from jiffy lube needing new radiators because they where talked into having it " flushed " included with an oil change special. enough said.


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