Question about 1993 Chevrolet Corvette

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93 corvette has no heat, it blows out cold air

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

freetek
  • 5568 Answers

SOURCE: Cold Air Not Blowing Through Vents

Your last guess is probably the right one. The deflectors/directors are vacuum controlled and you may have vacuum line either broken or disconnected; these aren't fun to find. I would start under the hood and make sure the vacuum reservoir is intact (have seen them cracked) and then start tracing hoses from there.

Posted on Aug 18, 2009

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  • 41 Answers

SOURCE: 1998 corvette cold air blows out driver side warm

you need to replace the temperature actuator on the left side of heater evaporator case, also ck the blower resistor and connection that should fix ya up.

Posted on Nov 04, 2009

  • 753 Answers

SOURCE: My 1992 corvette does not blow hot air. I can control air flow.

Is the inlet and outlet heater hoses hot and if so you have a seperate acuator for your hot/cold door.Check for vacuum there if you have vacuum to the acuator then it must be a faulty acuator or jambed door.

Posted on Dec 21, 2009

billyd1973
  • 73 Answers

SOURCE: Air conditioner suddenly stops blowing cold and

If you are absolutely confident the AC compressor is not kicking out on low pressure then it is the blend door actuator.

The blend door determines how much air blows through the heater core or evaporator.

The actuator can be purchased at dealer and maybe at a local part store.

Posted on May 27, 2010

  • 553 Answers

SOURCE: Air conditioner charged won't blow cold air

It sounds like you either have bad controls or stuck dampers in your vents. The stuck dampers are usually caused by plant debris getting in to the air system.

Posted on Jun 07, 2010

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1 Answer

Heat/ac control slider is not going from cold to hot in my 94 corvette


The hot / cold sliding lever is broken on unit. Common problem, the lever is plastic and breaks easily. If you take a flashlight and look inside the lever slot on the top right side you see a post it connects too. You could take a pick tool and move the post closer to you for heat or away for cold air.

Nov 11, 2013 | 1994 Chevrolet Corvette

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I have a 1981 corvette I put freon in it and 1 line is cold 1 line is hot contro l door is closing from hot to cold but will not cool.


Check that your cabin air ducting does not have disconnects and verify the fan is blowing air through the cooling condenser coil. Something may have fallen down through the windshield defroster slots and jammed the fan.

Aug 26, 2012 | 1981 Chevrolet Corvette

1 Answer

Heater blows cold air, also defrost blows cold


check to see if your hoses to heater core are hot on both sides. my 93 hoses where hot going in the heater core but not out. I flushed the heater core now I have heat

Dec 12, 2010 | 1993 Cadillac DeVille

1 Answer

1994 corvette air conditioner cold air during acceration and then on deceration it blows out hot air. And in the winter the heat blows cold during driving and gets warmer when not accerating and slower...


On the a/c send the radiator to flush,as for the heater you need to check the vacuum hoses that goes into the contrl panel,check for a leak on vacuum in the engine as well.

Sep 24, 2010 | 1994 Chevrolet Corvette

1 Answer

My 1992 corvette does not blow hot air. I can control air flow.


Is the inlet and outlet heater hoses hot and if so you have a seperate acuator for your hot/cold door.Check for vacuum there if you have vacuum to the acuator then it must be a faulty acuator or jambed door.

Dec 21, 2009 | 1992 Chevrolet Corvette

1 Answer

1998 corvette cold air blows out driver side warm air out pass side cant change driver side also fan one speed


you need to replace the temperature actuator on the left side of heater evaporator case, also ck the blower resistor and connection that should fix ya up.

Nov 04, 2009 | 1998 Chevrolet Corvette

1 Answer

Cold Air Not Blowing Through Vents


Your last guess is probably the right one. The deflectors/directors are vacuum controlled and you may have vacuum line either broken or disconnected; these aren't fun to find. I would start under the hood and make sure the vacuum reservoir is intact (have seen them cracked) and then start tracing hoses from there.

Aug 18, 2009 | 1996 Chevrolet Corvette

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