Air Conditioner stop blowing cold. I was about to put freon in but I checked the pressure way high. I dont understand how this could possible happen.. Ran great for 3 yrs. now what to do???


Asked by Jun 29, 2013 at 04:24 PM about the 2002 Chevrolet S-10 2 Dr LS Standard Cab LB

Question type: Maintenance & Repair

3 Answers


So your a/c line pressure is high, does it remain high with the engine off? Or does it pressure up quickely after you start it? Not sure what would cause it to remain high all the time. If it pressures up quickely there is a blockage. Your a/c system will have two pressure switches one low one high. Low one is for low refrigerant the high one to protect the system from overpressurizing. If it's not blocked you could try bleeding some pressure out to the operating zone as indicated on your re-charge kit. If there is a blockage it will have to be repaired.

2 of 2 people found this helpful.

Hi/Lo Switch, Or clogged condenser, If so, take too a shop, I had to do the same, I got lucky, they sucked out old Freon, and then blowed it out, filled and worked fine,

1 of 1 people found this helpful.

It uses R134a, not R12 Freon.

Your Answer


Looking for a Used S-10 in your area?

CarGurus has 998 nationwide S-10 listings starting at $999.


Chevrolet S-10 Experts

  • #1
    Andrew Olsen
  • #2
    John Saffrahn
  • #3
View All

Related Models For Sale

Used Chevrolet Silverado 1500
2,199 Great Deals out of 151,084 listings starting at $1,499
Used Ford Ranger
119 Great Deals out of 4,676 listings starting at $1,495
Used GMC Sonoma
335 listings starting at $1,695
Used Toyota Tacoma
428 Great Deals out of 41,122 listings starting at $2,600
Used Ford F-150
2,558 Great Deals out of 220,223 listings starting at $1,222
Used Dodge Dakota
65 Great Deals out of 3,131 listings starting at $1,600
Used Chevrolet Blazer
722 listings starting at $900
Used Nissan Frontier
349 Great Deals out of 24,549 listings starting at $1,200
Used GMC Sierra 1500
887 Great Deals out of 59,331 listings starting at $1,980
Used Dodge Ram 1500
327 Great Deals out of 9,602 listings starting at $800
Used Chevrolet Camaro
242 Great Deals out of 30,118 listings starting at $4,980

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.