Only in the summer when the AC is on ,and not often but my 2004 trailblazer will stall?? I have brought it to the dealers and they checked for codes and nothing ...It has always done this New ..Help p

Asked by May 25, 2013 at 09:32 PM about the 2004 Chevrolet TrailBlazer LS

Question type: Maintenance & Repair

I live in NC so the summer is hot and muggy...when my ac is on and the radio the car will stall at a stop light ...we have tried to fix it and nobody ever finds anything wrong

4 Answers

115,185

Could be the idle air control valve either bad or dirty. It's job is to idle your vehicle up when ac and or other acc are being used. Try cleaning it first also clean throttle plate and throat of throttle body around the plate. Hope this helps.

1 of 1 people found this helpful.
71,015

When you switch on the A/C this sends an "a/c request" signal to the computer. The computer then increases the idle speed about 50 RPMs to compensate for the added load of the A/C compressor. This sequence of events will also happen when "defrost" is selected. Most likely, as the above poster said, the IAC (idle air control valve) is not responding. If cleaning it doesn't solve the problem replace it. They usually aren't too expensive. HTH. - Jim

My truck was doing the same all i had to do was renove the throttle body and clean it really good with cleaner and it bever happened again.

235

Best fix is remove fuses #10 and #28, then remove your throttle body and clean with sensor safe spray like Seafoam. This will fix your problem, this is the most common problem with the GMT360 platform.

Your Answer

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 4,534 nationwide TrailBlazer listings starting at $1,300.

ZIP:

Chevrolet TrailBlazer Experts

  • #1
    bigdogracer
    Reputation
    920
  • #2
    Tom Demyan
    Reputation
    890
  • #3
    tennisshoes
    Reputation
    700
View All

Related Models For Sale

Used Chevrolet Tahoe
730 Great Deals out of 41,715 listings starting at $1,995
Used Jeep Grand Cherokee
864 Great Deals out of 70,548 listings starting at $700
Used GMC Envoy
51 Great Deals out of 2,184 listings starting at $1,700
Used Chevrolet Silverado 1500
2,282 Great Deals out of 169,694 listings starting at $1,000
Used Ford Explorer
926 Great Deals out of 69,576 listings starting at $1,495
Used Chevrolet Impala
542 Great Deals out of 35,256 listings starting at $900
Used Chevrolet TrailBlazer EXT
10 Great Deals out of 1,026 listings starting at $2,000
Used Chevrolet Equinox
973 Great Deals out of 60,960 listings starting at $1,500
Used GMC Yukon
474 Great Deals out of 22,329 listings starting at $1,995
Used Ford F-150
2,573 Great Deals out of 199,178 listings starting at $1,300
Used Dodge Durango
269 Great Deals out of 22,949 listings starting at $895
Used Ford Mustang
593 Great Deals out of 36,388 listings starting at $899

Used Cars For Sale

2007 Chevrolet TrailBlazer LS For Sale
8 Great Deals out of 103 listings starting at $2,925

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.