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AC blowing hot air

Tiny
JONMANIAUL
  • MEMBER
  • 2004 DODGE NEON
  • 2.0L
  • 111 MILES
It has Freon, fuses and relay good. Try to jump A/C relay and A/C clutch engage, but when I check the low pressure switch, no power.
Monday, September 18th, 2017 AT 8:24 AM

2 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Any applicable trouble codes? The high pressure sensor--low pressure sensor--and A/C/heater control are wired in series, part of the ground. See the PCM, A/C sensor. I believe the PCM sends voltage to the high pressure sensor first and so on. You may need to check voltage at high pressure sensor circuit, first. I am not sure how much voltage is there, use a digital multi-meter.

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Monday, September 18th, 2017 AT 11:30 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
How do you know that the refrigerant level is correct? Can you get high and low side pressure readings posted?
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Tuesday, September 19th, 2017 AT 3:53 AM

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