where is the low pressure switch on a 2003 dodge ram 3500

Asked by Aug 29, 2012 at 07:47 AM about the 2003 Dodge Ram 3500 SLT Quad Cab SB

Question type: Maintenance & Repair

AC doesn't blow cold air. Already changed compressor/no change.  The low pressure side runs high at about 100 and keeps climbing.  The high pressure side is higher also.  Could it be a pressure switch and if so, where is it's location on the truck?

2 Answers

605

Have you changed the drier system out? The low pressure switch wioll be around it. Is the condenser clean? High pressure on the high side it restriction of air flow in condenser. The high pressure on low side is restriction going to evaporator coil in firwall. If line drier is cool on one side and warm on other you have a line restriction. Is compressorc cycling on and off be careful jumping low pressure switch.

1 of 1 people found this helpful.
605

Darn one more thing check for a filter in cab for evaporator coil it may be stopped up

1 of 1 people found this helpful.

Your Answer

Dodge Ram 3500 Experts

  • #1
    Dan Connell
    Reputation
    530
  • #2
    hacksaw77864
    Reputation
    250
  • #3
    Dave Turgeon
    Reputation
    210
View All

Related Models For Sale

Used Dodge Ram 2500
162 Great Deals out of 4,950 listings starting at $2,499
Used Ford F-350 Super Duty
333 Great Deals out of 24,267 listings starting at $2,488
Used Ford F-250 Super Duty
363 Great Deals out of 44,638 listings starting at $1,799
Used Chevrolet Silverado 2500HD
291 Great Deals out of 28,916 listings starting at $3,550
Used Dodge Ram 1500
352 Great Deals out of 10,726 listings starting at $1,500
Used Chevrolet Silverado 3500
17 Great Deals out of 532 listings starting at $6,990
Used Ford F-450 Super Duty
43 Great Deals out of 2,399 listings starting at $3,995
Used GMC Sierra 2500HD
107 Great Deals out of 13,418 listings starting at $3,875
Used Ford F-150
2,291 Great Deals out of 183,552 listings starting at $699
Used Chevrolet Silverado 1500
2,102 Great Deals out of 165,819 listings starting at $1,498

Used Cars For Sale

2006 Dodge Ram 3500 SLT Quad Cab SB For Sale
8 listings starting at $11,999

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.