Engine dies out when turnon ac or defrostt

Asked by Aug 08, 2017 at 02:41 AM about the 2004 Buick Rainier

Question type: Maintenance & Repair

Ac or defrosumakes car stall.

2 Answers


Sounds like your compressor has failed and it stalls out your engine when the ac clutch engages. You should stand outside the car and look down at the pulley on the front of the ac compressor. Run the car, and have a friend turn on the AC. If you see the clutch engage and then the pulley doesn't turn, then you have your answer. A new compressor is needed.


Easy fix! Cost you about $9. Remove fuses # 10 and #28 under the hood. Then remove your throttle body and clean it with a sensor safe spray like Seafoam. This will fix your problem.

Your Answer

Buick Rainier Experts

  • #1
  • #2
  • #2
    Tom Demyan
View All

Related Models For Sale

Used GMC Envoy
29 listings starting at $5,500
Used Chevrolet TrailBlazer
38 listings starting at $4,499
Used Buick Rendezvous
27 listings starting at $2,995
Used Chevrolet Equinox
101 Great Deals out of 5,465 listings starting at $1,500
Used Buick LaCrosse
11 Great Deals out of 324 listings starting at $5,950
Used Dodge Durango
128 Great Deals out of 1,099 listings starting at $2,990
Used Chevrolet Tahoe
8 Great Deals out of 883 listings starting at $6,299
Used Honda Pilot
5 Great Deals out of 651 listings starting at $3,495
Used Buick Regal
185 listings starting at $6,995

Used Cars For Sale

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.