Question about 1997 Ford Expedition

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Smell anti freeze when ac on - 1997 Ford Expedition

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  • breidinger Aug 05, 2010

    Going to try stop leak first before replacing. Good idea or no

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I respectfully disagree with stop leak of any kind its a very temporary fix. You have a cracked heater core, thats why you smell antifreeze.

Posted on Aug 06, 2010

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The heater core has a leak

Posted on Aug 05, 2010

Testimonial: "Thanks much. Will let you know how it goes."

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Aug 05, 2010

    I would only use prestone stop leak,it is the best on the market,and will not stop up the wrong things Please rate thank you

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1 Answer

No leak and 2003 nissan xterra smell like anti freeze check radiator,water pump.hoses.heater core.anti freeze level in radiator is perfect


If you can smell,then you have a leak,if the heater core has a pin hole,then the box that houses it will hold the antifreeze to wear you won't see any,have to take the box apart and see,check your hoses going thru the firewall to see if there leaking.

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I can smell anti freeze blowing out my. Vent when my heater in on and sometimes when my ac is on


YOU HAVE A LEAK IN THE HEATER CORE IF THE HEATER HOSES ARENT LEAKING

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Why does my Buick Rendevous, 2005, leak water into both front floorboards?


Is it leaking water or Anti Freeze?
If it's Anti Freeze you can pull down the rug or floor mat to check, you should also smell the Anti Freeze. This means your heater core is leaking & has to be replaced, if it's not leaking bad you can try a sealer called Aluma seal (my spelling could be wrong),looks about the size of a roll of dimes, most auto stores have it.
If it's water, my guess is the AC condensation hose is blocked. Does it leak only when the AC is on? this hose runs outside, usually on the
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WHEN HEATER TURNED ON AND ENGINE WARM I SMELL ANTI- FREEZE CAN NOT LOCATE LEAKS


Are you able to see if it is the heater core? Located in dash on passenger side. Can often see them from bottom of the dash if you stick your head down by the floor boards.

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My 1997 subaru impreza squeals badly and then engine smokes


Hi this sounds weird does the smoke come out from the front engine covers? the squealing could be the cambelt trying to turn a semi or completly ceased waterpump which would cause the smoke after a while, also without the waterpump working properly the engine will leak water and anti freeze out the overflow and overheat really quickly

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Smoke as comeing out of my ac vents end under by my feet on a 2000 s10


Does it smell sweet? like anti freeze? if so you may need a heater core.

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1 Answer

I changed the lower raditor hose. Standard remove and replace. No problem. Replaced water and 1 gallon of anti-freeze. Let system warm up and turned on heater. No problems. Test drove and no leaks. Next...


the sweet sickly smell is normal for new anti freeze.once you have run the car for a couple of miles the smell will dissipate.the white foamlike stuff is chalk/lime in the water,harmless.

Aug 21, 2010 | 1996 Jeep Cherokee Sport

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Heater core 1987 lichon signature 5.o location


heater core is located on the front passenger side next to your ac evaporator assembly, your heater unit uses engine coolant water as a heater , the reason why you smell anti freeze because your core has a leak.
you can disassemble the unit if you have the right tool and by removing the front glove box and console panel to expose and give way to check that unit, it normally fastened by screws and a few bolts and nuts.

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1 Answer

O2 tahoe


Probably not. Residue on the passengers side rug is likely either from a leaky heater core or a blocked air conditioner evaporator drain. Is the residue slippery feeling? Does it have a sweet anti-freeze smell? If you blot it up with a white towel, does it have a color?

If it is colored the same color as your anti-freeze (green, orange or pink, depending on what type your tahoe uses) and has a sweet smell, my bet is the heater core is leaking. This would also cause fogging on the windshield when using the front defroster and a sweet smell from the air vents when the heat is turned on.

If it just seems like water and seems to get worse when you use your air conditioning, it is likely a blocked AC evaporator drain.

In any case, neither of these problems are likely to be related to an intake manifold job.

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