AC recharge

Asked by GuruS6H93 Jun 16, 2019 at 11:36 AM about the 1997 Jeep Grand Cherokee Laredo 4WD

Question type: Maintenance & Repair

My Jeep AC compressor won’t
engage. I tried jumping the
connection to the compressor.  Does
the refrigerant level have to be exact
for both the low side and high side fir
the compressor to engage or do I
need a new compressor?   

2 Answers
870

rschweitzer answered 5 years ago

No. The low side should be 30 to 45 psi, temp dependent. The high side should be 150 to 225, temp dependent. If the compressor will not start, it could be: low pressure cut off switch is bad, compressor relay/fuse, is bad, defective compressor clutch or not enough freon in the system. Hope this helps.

1 people found this helpful.
Mark helpful
44,020

Hornet_2497 answered 5 years ago

Most likely just low on 134a (Freon). Low pressure switch locks compressor out. Warm the refrigerant can gently with a hair dryer to push some Freon in while engine is idling. Soon the clutch will click on and you can check your gauge readings until full.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • AC recharge 2 Answers

    My Jeep AC compressor won’t engage. I tried jumping the connection to the compressor. Does the refrigerant level have to be exact for both the low side and high side fir the compressor to engage...

    1997 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Ac fan 4 Answers

    Condencer fan not running at high speed when ac is on at idle so air wont blow cold unless driving down road? Why fan wont run at high speed at idle with air on?

    2011 Jeep Grand Cherokee Limited 4WD

    -

    Maintenance & Repair

  • 2004 grand cherokee AC 3 Answers

    had radiator changed in my 2004 grand cherokee and now AC doesn't work. light works and fan runs but no cold air. ideas? Don't want to let garage keep soaking me for money...

    2004 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

  • Ac compressor relay 1 Answer

    Just replaced my whole ac system on my jeep grand 5.9 L. My new ac compressor came with the wrong plug so I had to cut and splice in my old plug to make it work. I hooked up gator clips to a batte...

    1998 Jeep Grand Cherokee 5.9 Limited 4WD

    -

    Maintenance & Repair

  • Faulty AC / Heat system 1 Answer

    The AC and Heat system isn't working properly. Speed controls at one point only worked on Hi. Saw numerous suggestions to replace the resistor, so since it was cheap, we replaced it. During the R&R...

    2005 Jeep Grand Cherokee Laredo 4WD

    -

    Maintenance & Repair

Grand Cherokee

Looking for a Used Grand Cherokee in your area?

CarGurus has 3,130 nationwide Grand Cherokee listings starting at $3,995.

Postal Code:

Shortcuts

Search Jeep Grand Cherokee Questions

CarGurus Experts

  • #1
    Hornet_2497
    Reputation
    8,970
  • #2
    Gene Arnett
    Reputation
    7,010
  • #3
    thejeepdoctor
    Reputation
    6,590
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Dodge Durango
52 Great Deals out of 2,217 listings starting at $5,500
Used Jeep Wrangler
134 Great Deals out of 4,983 listings starting at $4,500
Used Jeep Cherokee
103 Great Deals out of 1,587 listings starting at $4,999
Used Ford F-150
318 Great Deals out of 13,848 listings starting at $1,712
Used Ford Explorer
71 Great Deals out of 2,072 listings starting at $3,995
Used Toyota 4Runner
19 Great Deals out of 301 listings starting at $10,800
Used Chevrolet Tahoe
12 Great Deals out of 904 listings starting at $12,900
Used Chevrolet Camaro
20 Great Deals out of 280 listings starting at $7,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.