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Tiny
PAP TCAR
  • MEMBER
  • 2000 CHEVROLET VENTURE
  • 3.4L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 145,000 MILES
Left van setting two minutes battery off, now A/C warm compressor turns, pressure okay. Bit warm air only. Fuses okay, low pressure, switch okay.
Friday, October 6th, 2017 AT 11:02 AM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 12,968 POSTS
Sounds like either the blend door stuck or the actuator for it failed.

Remove the insulator panel above the drivers foot well. You will be able to see the blend actuator on the side of the HVAC case. Try adjusting the temp from hot-cold-hot and see if the stem moves. It probably isn't moving which means the actuator or the temp control is bad. The actuator comes off easily, Try moving the control stem by hand. Do you get hot/cold now? If yes the core and door are OK.
The actuator is the likely problem.
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Monday, October 9th, 2017 AT 6:03 AM
Tiny
PAP TCAR
  • MEMBER
  • 2 POSTS
Removed actuator it works any other ideas I haven't checked high pressure side low beside OK high side hard to get to but I'll check it maybe a blockage in expansion Valve. Thanks
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Tuesday, October 10th, 2017 AT 4:11 PM
Tiny
STEVE W.
  • MECHANIC
  • 12,968 POSTS
Expansion valve or a weak compressor.
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Tuesday, October 10th, 2017 AT 9:24 PM

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