Window de-fogging

1996 FORD RANGER
278,000 MILES • 6 CYL • 2WD • AUTOMATIC
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KEN I
  • MEMBER
  • 1 POST
How do I keep my windows from fogging over with a glaze of antifreeze?
Nov 18, 2010 at 11:43 AM
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ERNEST CLARK
  • CAR REPAIR CONTRIBUTOR
  • 1,730 POSTS
If this is coming from the inside, then your heater core is leaking and needs to be replaced.

If it's coming from the outside, then you have a leak somewhere in the engine compartment that needs to be fixed.

You can find the leak by pressurizing the system and looking for it.

You need to correct this issue before your engine overheats and blows a gasket.
Nov 18, 2010 at 11:45 AM
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MHPAUTOS
  • CAR REPAIR CONTRIBUTOR
  • 31,937 POSTS
This is inside i presume? and have you addressed the coolant leak at the heater that is deposition the antifreeze in vapor form, if not you will not stop it.

mark (mhpautos)
Nov 18, 2010 at 11:47 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.