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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: jfkelley on July 16, 2019, 10:14:57 pm

Title: 76 K10 A/C PROBLEM "HELP"!!!
Post by: jfkelley on July 16, 2019, 10:14:57 pm

I have an 1976 K10 Scottsdale 4X4, The A/C has been retrofitted it blows Semi Cold when Idling , But if I give it gas while sitting still the blower speeds up and blows cold, Also when you drive it you can hear it start blowing harder and its gets cold..A/C has been charged , All Ducts been inspected and are good..Do I need a new Clutch fan or Blower Motor ? Maybe one out of an 1994 Truck?..Plus the A/C Blows Max regardless what setting you have it on...Its HOT in Oklahoma right now 118 today...Any Help or Advice would help ...Thanks !

Title: Re: 76 K10 A/C PROBLEM "HELP"!!!
Post by: VileZambonie on July 17, 2019, 04:49:51 am

Check the voltage at the blower motor with the engine running at idle. Compare it to charging system voltage and repeat the test with engine speed increased, report your results.

Title: Re: 76 K10 A/C PROBLEM "HELP"!!!
Post by: jfkelley on July 19, 2019, 10:57:27 pm

Here is my AC Compressor engaging & my belt wobbly is this the reasons my A/C not blowing hard until I press the gas ?

https://youtu.be/u8mNmmZYgq0