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I have a 1997 venture van how do I check heater core on van. Thermostat been changes radiator and hoses checked. No leaks on floor. Or smell inside van. Blows cold air.

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Have you checked the hot/ cold air switch

Posted on Feb 21, 2012

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CHEVY 1990 5.7 FLUSHED MY HEATER CORE BUT STILL DON'T GET VERY HOT AIR HOSES HOT ,SMELL ANTIFREEZE IN CAR BUT NO LEAKS ON FLOOR DO YOU THINK IT'S HEATER CORE OR THERMOSTAT???


is the blower fan running? if not check fuse, blower motor relay, & blower motor.
did you vent (some call it burp) the cooling system? if not search. try this: put car in an inclined position (radiator highest). while coolant is COOL remove radiator filler cap (reservoir filler cap if none in the radiator). set heater to maximum heat. run engine. turn on fan. while radiator is warming watch, if not been vented, air bubble may come out, you may have to add coolant to adjust level as necessary. replace radiator filler cap. check reservoir coolant level too.
if return hose from heater core stays much colder than the supply hose, suspect there's blockage/s in the heater core. (flush heater core again. disconnect both heater core from the engine, attach garden hose to the return, run water till clean water comes out from the supply hose - you don't have to do this if this was the procedure you did).
thermostat: take it out & see if it's stuck open.

Oct 12, 2015 | Heating & Cooling

2 Answers

I have a 1997 bmw 318i that is overheating. Steam comes from back of engine compartment and the fan is not engaging. What could the problem be?


It is likely that the heater core has sprung a leak, or the hoses leading to the heater core have failed. This would cause a loss of coolant that would make the coolant temperature sensor think it wasn't necessary to turn the fan on, and would cause steam to appear to rise out of the back of the engine. If you turn the heater on inside the passenger compartment and get steam through the vents, it's DEFINITELY a heater core breach. Otherwise, check the hoses leading to the heater core and make sure they are still connected and not leaking. Good luck!

May 25, 2014 | 1997 BMW 318

1 Answer

Should radiator hoses be easy to squeeze


I have an older Chrysler Town and Country but I had the same problem, I found mine to be a leaking radiator, check all of your hose connections and if you have the flimsy plastic radiator in your van, get the more expensive aluminum version. The plastic radiator melts at the bottom because the are required to be grounded and sometimes this is not done properly, therefore sending an electric current through the radiator melting out the bottom, went through three of these before anyone let me know that they had to be grounded. If there are no leaks under your radiator or hoses, the next thing I would check is your cylinder head the burning smell could be dripping from your head to your exhaust. I would say you have a nice sized leak some where because with these vans if you do not have enough coolant in them they will not produce hot air fill your radiator up with more coolant and then test your heater, it should work but until you find the leak I would make sure to keep extra water/coolant inside the van.

Mar 25, 2013 | 2006 Chrysler Town & Country

2 Answers

My ford 1997 F-150 4.6L has a antifreeze smell in the cab when it is running, think it might be the heatercore?


yes it sounds like it might be the heater core when your heater core goes bad it leaks and seeing that it is in the cab it will have that smell usually when it leaks your floors will be wet from the leak. bypass the heater core unitl you can get it fixed to prevent any electrical problems

Nov 21, 2011 | 1997 Ford F150 Regular Cab

2 Answers

Overheating pontiac montana shooting out cold air from heater


Get the radiator and heater core, hoses and thermostat replaced. Also replace the mixing valve if needed. A radiator shop could give you an estimate and diagnose the problem better than I can online. I hope sincerly that this helps.

Mar 16, 2011 | 2003 Pontiac Montana

2 Answers

I have a dodge 97 dakota, my heater doesnt blow out heat after warming up and being driven, and sometimes i kind of smell antifreeze, when i use the defroster


it sounds as if you have two problems,one the heater core is plugged and two you have a heater core that is leaking.the leak is shown when you use the defroster by the smell and chances are there is a light film of antifreeze on the windsheild.and the plugged heater core is shown by no heat.check the radiator to make sure the coolant level is full and the overflow bottle is at the full level. as a low coolant level in the radiator will cause no heat.with the car warmed up(radiator coolant hot), check the heater hoses at the firewall were they enter the heater core they should be the same temperature from one hose to the other.if the coolant level is up and the hoses are the same temperature then the heater core is plugged.if the coolant temperature is the same from hose to hose but not hot to the touch the thermostat may be weak and needs replacing.either way the heater core will need to be replaced as it is leaking into the heater box assembly

Mar 08, 2011 | 1997 Dodge Dakota

2 Answers

I have changed everything but the radiator to no effect. I can now see colant steam start on the drivers side and move slowly across the radiator to the passanger side with the hood closed. Does this...


Had the same issue today, popped the hood to find that there is a plastic "T" joint that is connected to 3 smaller hoses almost dead center of the engine bay, just above the engine towards the back, kinda tucked under the windshield area. If u look you'll kind of notice to hoses about half the thickness of the main radiator hoses in the front, and the two attached to the left and lower stem of the "T" are kind of curled, each hose has the little metal pinch clamps. On mine, the lower stem of the plastic "T" was completely busted off, and that was causing the steam to rise up from the drivers side and then also ACCROSS the entire windshield after I drove for a few block. Been searching for a part number on-line, havnt found it yet, but will re-post after Instop into autozone in the morning with one.

Dec 11, 2010 | 1999 Chevrolet Venture

4 Answers

I get a smell of antifreeze when I put the outside


Firsdt check the radiator cap thats it tight , then check for any anti freeze visible on the engine, then check under the car for any leaks. Is the smell of anti freeze inside the car ? , check the heater core you may have a leak there. the newer heater cores are aluminum and certain anti freezes, are extra acidic , which causes the anti freeze to eat at the heater core causing leaks, it maybe be a pin hole leak in the heater core ,causing the smell.

Jul 12, 2009 | 2000 Chevrolet Blazer

1 Answer

There is a leak on the front passenger floor. 1997 civic???


heater core ..smells sweet?....you coolant is leaking inside cabin..check top off radiator coolant ..replace heater core

Jan 13, 2009 | 1997 Honda Civic

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