Help my A/C is roasting!!!
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 36
Likes: 0
From: Round Rock TX
Help my A/C is roasting!!!
Yesterday my A/C was blowing so cold I adjusted the Memory setting up a few degrees. Today, it was blowing so hot I was sweating at 7 am and it was cooler outside. The A/C button light flashes when I push it. I checked the hoses and they look ok, check all the fuses and relays and they were fine. Anyone have any suggestions? What could cause it to go in 1 day???
I've got a newborn and really can't afford to pay a stealer excess $$$ to tell me what's wrong if it's a relatively inexpensive fix.
Thanks,
Chad
I've got a newborn and really can't afford to pay a stealer excess $$$ to tell me what's wrong if it's a relatively inexpensive fix.
Thanks,
Chad
Instructor
Joined: Jan 2001
Posts: 211
Likes: 0
From: Hobe Sound Florida
Chad, get under your radiator and see if it is cluttered with "stuff". Make sure it is clean. I had the passenger side air vents blowing very hot air and as soon as I got the plastic bag out from the radiator cavity, all was okay again. It's worth a try.
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 36
Likes: 0
From: Round Rock TX
The outside temp reads F*cking HOT!!! It's July in Austin, Texas. It seems to be fairly accurate right now, it says 100 in the garage which seems about right the current temp according to our local station is 98.
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 36
Likes: 0
From: Round Rock TX
Originally Posted by NoWay
Chad, get under your radiator and see if it is cluttered with "stuff". Make sure it is clean. I had the passenger side air vents blowing very hot air and as soon as I got the plastic bag out from the radiator cavity, all was okay again. It's worth a try.
I'm getting a really bad feeling this is going to cost me big bucks
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 36
Likes: 0
From: Round Rock TX
Originally Posted by navy99vert
look in the owners man. and pull the fuses for the A/C. this will reset the system
Le Mans Master
Joined: Dec 2003
Posts: 5,622
Likes: 0
From: Savannah Georgia
Cruise-In VIII Veteran
Check for codes then post what you find. Sometimes clearing them will help, but wright them down first
https://www.corvetteforum.com/techti...D=25&TopicID=1
https://www.corvetteforum.com/techti...D=25&TopicID=1
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Thread Starter
Intermediate
Joined: Dec 2003
Posts: 36
Likes: 0
From: Round Rock TX
Originally Posted by navy99vert
Check for codes then post what you find. Sometimes clearing them will help, but wright them down first
https://www.corvetteforum.com/techti...D=25&TopicID=1
https://www.corvetteforum.com/techti...D=25&TopicID=1
Thanks everyone for your help. I'll keep checking as long as you've got ideas
Le Mans Master
Joined: Dec 2003
Posts: 5,622
Likes: 0
From: Savannah Georgia
Cruise-In VIII Veteran
Originally Posted by Pewter Tex
No current codes
Thanks everyone for your help. I'll keep checking as long as you've got ideas
Thanks everyone for your help. I'll keep checking as long as you've got ideas
Good luck
It's to hot to be without A/C. My work truck doesn't have it an IT'S HHHHOOOTTTT
Melting Slicks
Joined: Jul 2003
Posts: 3,427
Likes: 2
From: Fountain Inn, South Carolina
If your air conditioning light is blinking .... something is wrong. If your water temp is high, most likely you will need to remove and clean the radiator. Lots of dirt gets in the fins that you can't see by just looking at it from under the car. If your running 230+... be ready to pull the radiator.
Thread Starter
Intermediate
Joined: Dec 2003
Posts: 36
Likes: 0
From: Round Rock TX
Originally Posted by navy99vert
Does the compresser come on when you turn the A/C on? If it doesn't you mightbe low on freon. You can buy it youself and recharge the system
Instructor
Joined: Jul 2004
Posts: 227
Likes: 6
From: Houston TX
Hi Tex
The last time I saw the flashing AC light was after leaving the A/C refrigerant pressure sensor disconnected. Compressor will not run if there is a fault here. The sensor is just below and in front of the coolant reservoir tank on the passenger side.
So firstly, check the wiring and the sensor.
Can you say if the fans are running? Without fans, high pressure will switch off the compressor.
If your 134A has leaked out, pressure will be too low, same result.
Interestingly, if the freon has been leaking out of your system, there will be a brief period where the system will actually kick out very cold air as pressures are so low in the system. This ties in with your description.
Unfortunately, with these low temps and Texas humidity, the evaporator will ice up, eventually blocking airflow.
System will eventually quit altogether.
Without the system running, you will need some gauges to check the static pressure.
Owners manual indicates that you should expect to see 100psi @ 90 degrees air temp with the system off (either the high or low side...)
Low-pressure access is near bulkhead by the battery on the passenger side.
Check all visible pipes, condenser etc for an oil stain. This may help indicate location of the leak.
Let us know
Good Luck
Dave
The last time I saw the flashing AC light was after leaving the A/C refrigerant pressure sensor disconnected. Compressor will not run if there is a fault here. The sensor is just below and in front of the coolant reservoir tank on the passenger side.
So firstly, check the wiring and the sensor.
Can you say if the fans are running? Without fans, high pressure will switch off the compressor.
If your 134A has leaked out, pressure will be too low, same result.
Interestingly, if the freon has been leaking out of your system, there will be a brief period where the system will actually kick out very cold air as pressures are so low in the system. This ties in with your description.
Unfortunately, with these low temps and Texas humidity, the evaporator will ice up, eventually blocking airflow.
System will eventually quit altogether.
Without the system running, you will need some gauges to check the static pressure.
Owners manual indicates that you should expect to see 100psi @ 90 degrees air temp with the system off (either the high or low side...)
Low-pressure access is near bulkhead by the battery on the passenger side.
Check all visible pipes, condenser etc for an oil stain. This may help indicate location of the leak.
Let us know
Good Luck
Dave
Burning Brakes
Joined: Jun 2004
Posts: 884
Likes: 1
From: McKinney TX
If it was working one day and not the next, I'd say you probably don't have a refridgerant issue. Assuming the compressor isn't kicking on, I'd check the low pressure switch first, they are inexpensive to replace. You should be able to pull the harness and jumper the pins with a paper clip. If the compressor kicks on and works fine then the switch is likely bad.