1994 Honda Civic Smoking AC

1994 HONDA CIVIC
21,500 MILES • 4 CYL • FWD • AUTOMATIC
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ANGIE2NICE2U
  • MEMBER
  • 1 POST
Ok I just had 600.00 worth of reepairs done on my car to supposivly make the AC work the computer and some hoses and the compressor brackets...... Well now the car will get real cold for only a short time and then smoke starts coming from the vents and then hot air starts coming out. If you turn the air off and then wait a while and turn it back on it works again only for a little while. What could be the problem?
May 22, 2009 at 8:26 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi angie2nice2u,

The problem is due to frosting, ie the evaporator inside the vehicle is too cold and this would cause it to freeze.

Possible causes are:
1. External air leaking into vehicle. Check for worn door seals, dislodged plugs at firewalls.

2. The thermostat is adjusted too cold, try backing off from maximum.

3. Thermal sensor is installed incorrectly. It could be too far away from the desired position resulting in it not providing the correct temperature of the evaporator.
May 28, 2009 at 7:07 AM
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