1998 Chevy S-10 warm air

  • 1998 CHEVROLET S-10

Air Conditioning problem
1998 Chevy S-10 4 cyl Two Wheel Drive Manual 157800 miles

I recently bought a use s10 and tried to use the ac and it did not work, only blew warm air. I check the static pressure and it did have r134a in it and the compressor does ingage, but both high and low pressure remain the same and no movement of the pressure gauges where noticed. I vacuumed/recovered the ac system pulled the the expantion valve out to clean and inspect. Reinstalled the expantion valve and recharge system with 1.75lbs of r134 and compressor still iingauges and still same condition as before, warm air and pressure readings are even and no movement of pressure readings. Is the system clogged some where else or the compressor not pumping?

Do you
have the same problem?
Thursday, September 2nd, 2010 AT 10:11 PM

1 Reply


If the system is fully charged, compressor is staying engaged when ac is on max ac, and only warm air is blowing out of the vents, this may be complicated. Its not one side blowing cold and one side hot right? The compressor isnt engaging, and disengaging every 15 seconds or so on max ac right? Also, if you change your vents to different zones, do you have cold air comming out anywhere?

Was this
Thursday, September 2nd, 2010 AT 10:33 PM

Please login or register to post a reply.

Recommended Guides