08 sentra no cold air after oil change and fluid top off

Asked by Jul 12, 2015 at 10:07 AM about the Nissan Sentra

Question type: Maintenance & Repair

fan and A/C was providing  "cool" air before but then took it at 150K to get oil changed....
they supposedly topped off fluids as well. Air from fan and a/c is HOT - HOT now... What
could have triggered this ?

5 Answers


Going by what you are saying I do not see anything that they did that would cause your A.C to go out. It is just one of those things that happens sometimes when you are getting other work done. Have A.C system checked out to see if it is low on refrigerant.

Is their anything special about charging the Nissan's A/C.... The low side pressure was too high and so no coolant could be added. Now I have someone telling me I need a new compressor. All I saw done was that they tried to start the compressor directly from the battery.... but isn't there a switch involved for the A/C to start ? I really can't afford a new compressor already !!

Ty for the previous answer btw...


I would check the fuse for the A/C first before saying it needs a compressor.


To test the compressor remove the connector from the high pressure switch then get a paper clip that will fit snug into prong on connector once you find the right size paper clip reshape paper clip into a u shape then stick paper clip into the prongs of the connector then start vehicle and turn on A.C. Compressor should start working if not check fuse. Once you confirm that the compressor is working remove paper clip and connect back to switch if compressor does not come on take a hammer and lightly tap on switch if compressor comes on replace switch because it is sticking if it does not come on replace switch because like I said most of the time that works by tapping on switch but not all the time and it is still bad. To replace switch is simple unscrew switch ( no freon will come out ) screw new one in and connect the connector back on switch and that should do it.

Your Answer


Looking for a Used Sentra in your area?

CarGurus has 50,793 nationwide Sentra listings starting at $1,888.


Nissan Sentra Experts

  • #1
  • #2
    Doran Harney
  • #3
    Tom Demyan
View All

Related Models For Sale

Used Nissan Altima
820 Great Deals out of 68,383 listings starting at $750
Used Toyota Corolla
715 Great Deals out of 67,521 listings starting at $1,599
Used Honda Civic
398 Great Deals out of 52,416 listings starting at $1,200
Used Toyota Camry
890 Great Deals out of 73,115 listings starting at $1,400
Used Honda Accord
592 Great Deals out of 92,752 listings starting at $1,495
Used Nissan Versa
237 Great Deals out of 21,137 listings starting at $1,999
Used Hyundai Elantra
426 Great Deals out of 45,294 listings starting at $495
Used Nissan Maxima
236 Great Deals out of 18,395 listings starting at $1,500
Used Chevrolet Cruze
568 Great Deals out of 61,519 listings starting at $1,400
Used Ford Focus
408 Great Deals out of 70,291 listings starting at $1,695
Used Hyundai Sonata
386 Great Deals out of 51,068 listings starting at $1,300
Used Nissan Rogue
627 Great Deals out of 77,977 listings starting at $3,490
Used Chevrolet Malibu
664 Great Deals out of 48,938 listings starting at $1,500
Used Mazda MAZDA3
210 Great Deals out of 26,355 listings starting at $1,950
Used Volkswagen Jetta
433 Great Deals out of 28,729 listings starting at $1,900

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.