Fogging Windows

1976 CADILLAC FLEETWOOD
31,000 MILES • V8 • 2WD • AUTOMATIC
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MAJORCB
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  • 1 POST
I have a nice 1976 Cadillac Fleetwood Brougham with 31,000 miles. Just got a new radiator installed due to having heats problems... heat then "no Heat". Mechanic said needed new radiator.... now my windows are fogging up. Heater core shows no signs of leaking when I look under the hood, Heater works great now, and there is no smell of anti-freeze in the car? What can this be?
Jan 1, 2011 at 7:14 PM
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MERLIN2021
  • ✓ASE Certified Mechanic
  • 17,250 POSTS
  • ASE Certified Mechanic
When the windows start fogging up, it is usually a pinhole in the heater core. Pressure test it and if the gauge drops, there is a leak. There are adapters to isolate and check the core.
Jan 1, 2011 at 7:31 PM
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