AC unit not working

Tiny
BOOTDOG
  • MECHANIC
  • 665 POSTS
I do it when it's off.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
WITTENBRINK
  • MEMBER
  • 1 POST
  • 2003 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 115,000 MILES
Air Conditioning problem
2003 Chevy S-10 4 cyl Two Wheel Drive Automatic 115000 miles

On my 2003 s-10 I've noticed that when my compressor is running, my low side pressure is almost 150 psi. The a/c quit working about 2 weeks ago. I went to the parts store and got a bottle of refrigerant only to discover that my system is about 100 lbs over. What do I need to be looking at? Do I have a bloockage, do I need a new compressor, or just have it pumped down and pumped back up again. The clutch engages, yet no hoses get hot or cold.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi wittenbrink, Welcome to 2carpros and TY for the donation

Its either overcharged or the there's air and moisture in it the needs vacuuming out
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
TSLOWLOWREGAL
  • MEMBER
  • 6 POSTS
  • 2001 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 73,500 MILES
Air Conditioning problem
2001 Chevy S-10 4 cyl Two Wheel Drive Automatic 73500 miles

Ok now I have a new problem with my s10,

My A/C had been working great but all of a sudden it just stop blowing cold air
I did notice that my compressor is kicking in but still no cold air

Also I noticed that my climate control knob don't work I mean it blows air thru all the vents at the same time

Any help would be great
Thx
Freddy
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
I would check the pressure first if ok. Replace the heater climate control
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
TX_WOLFMAN
  • MEMBER
  • 18 POSTS
  • 2003 CHEVROLET S-10
Interior problem
2003 Chevy S-10 4 cyl Two Wheel Drive Manual

No matter what you put the selector on the heated air only blows out the dash, no floor or defroster. I know this has to do with the blend doors, but don't know how to go about it.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
SWILLIAMS
  • MECHANIC
  • 597 POSTS
Common cause for this is a loss of vacuum to the interior controls. Open the hood and check the vacuum connections near the brake booster. They get cruddy and fall apart or split.
The other item that sometimes happens is the vacuum chamber cracks or the check valve in it fails.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
HEBER
  • MEMBER
  • 4 POSTS
  • 2000 CHEVROLET S-10
  • 15,100 MILES
It starts up good when I drive it bout three miles it like it is running out of gas but it stared doing this when it started to get cold mornings when it in the day it don't do it runs good?
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure first.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
HEBER
  • MEMBER
  • 4 POSTS
Thanks
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
It sounds like you may have a problem with fuel pressure. Check that first.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
HEBER
  • MEMBER
  • 4 POSTS
U think maybe be the fuel pump getting weak?
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
SANDINO
  • MEMBER
  • 1 POST
  • CHEVROLET S-10
I have a 2000 S-10, 3.0 liter, with 130,000 km. The A/C sometimes blows cold air, but not always. I had it recharged last summer, but the shop could find no leaks, though it worked great after servicing. Recently turned it on, got no real cooling, then it delivered cold air for a while, now getting no cold air again. It was suggested to me that there might be a problem with heater ducts, and that the A/C might be competing with the heater. How can I check? Thanks KS
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
DPWD23
  • MECHANIC
  • 136 POSTS
First make sure the compressor is running when you have the A/C turned on. If it is not, then have the system serviced to bring it to full proper charge, and have them add the UV dye to the system while they are charging it.

Get a UV pen and glasses so you can see the stuff glow, and run the A/C full blast for a week. Check for leaks.

You can check the dampers for movement if you believe their is a war raging in your dash. Just move the controls from hot to cold and listen for movement (blower on low). It may help to have your head under the dash on the passenger side while doing this to hear things better. If no movement is heard, then a little exploratory surgery could be in order.
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Maybe
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Monday, November 20th, 2017 AT 3:16 PM (Merged)
Tiny
HEBER
  • MEMBER
  • 4 POSTS
I ran a code test on my 2000 Chevy s10 the code came back and said fuel flex circuit where is that located at on the truck?
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Monday, November 20th, 2017 AT 3:16 PM (Merged)

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