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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: maximus5541 on August 08, 2008, 03:06:56 pm

Title: another a/c question
Post by: maximus5541 on August 08, 2008, 03:06:56 pm

the a/c in my 83 works. it blows cold, but the problem is it just doesnt blow very hard .  i was wondering if there was somethingthat i could clean or replace to fix this problem. i had a friend suggest that i clean the evaporator, but i thought i would ask here before i try anything. also as a side question, when i do trun on the a/c it drags the rpms down very  very low????

Title: Re: another a/c question
Post by: maximus5541 on August 09, 2008, 12:41:08 pm

TTT   Does any one have a thought before i start.

Title: Re: another a/c question
Post by: VileZambonie on August 09, 2008, 04:18:25 pm

If the fan motor is running at proper speeds and there are no obstructions, kinked vents or disconnected vents then clean the evaporator.

Title: Re: another a/c question
Post by: maximus5541 on August 10, 2008, 08:19:08 am

thats where i am going to start. i will check the vents and then go to clean the evaporator. Thaks for the help

Title: Re: another a/c question
Post by: biodiesel84 on August 10, 2008, 11:17:10 am

also, there is a high idle control for the a/c that will kick up the rpms when you turn it on...you may need to replace that or make sure it's hooked up right...

Chuck.

Title: Re: another a/c question
Post by: maximus5541 on August 10, 2008, 04:01:41 pm

thats what i was thinkin but when i do turn on the a/c  the rpms dont go they go down. where would i begin the seach for this high idle switch.

Title: Re: another a/c question
Post by: wrangler on August 10, 2008, 05:32:20 pm

it should be on the side of your carb.