Radiator is making a boiling sound

Asked by May 09, 2017 at 06:30 PM about the 2003 Chevrolet TrailBlazer LS RWD

Question type: General

We have a 03 4wd trail blazer
He just put in a a compressor bc the air has been
out for about 1 to 2 year's
After fussing with him to get it fixed  he finally did
but he got home today after driving the car for
about an hour I just walked passed it and heard a
bubbling or boiling sound and so i asked  him if he
ran it hot he said no but he must've not been
paying attention
Besides I thought any car only did that when it over
heats  so please help me figure this little mystery
Tnks in advance Tiffany

4 Answers

31,815

first check fluid levels.. then leaks then thermostate if not elect.fans check the clutch fan...

1 people found this helpful.
116,285

Maybe the coolant has too much water and not enough anti-freeze. I would do full cooling system maintenance - flush, new hoses, thermostat and coolant. Install 50/50 antifreeze and water unless you live where it is really cold in which case you need more anti- freeze and less water.

1 people found this helpful.

Thanks guys I'll most definitely let him know and greatly appreciated the feed back..

495

2 tips above are good too, in addition..Our I6 engines will bubble or gurgle when there is air in the system too. Take top off overflow tank and run it til it gets hot to get all air out. A better method, is to jack up front passenger tire, take the top radiator hose off and let it bubble the air out of there too.

Your Answer:

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 45 nationwide TrailBlazer listings starting at $4,495.

Postal Code:

Chevrolet TrailBlazer Experts

  • #1
    bigdogracer
    Reputation
    1,140
  • #2
    Tom Demyan
    Reputation
    980
  • #3
    tennisshoes
    Reputation
    860
View All

Related Models For Sale

Used Chevrolet Tahoe
13 Great Deals out of 868 listings starting at $6,999
Used Jeep Grand Cherokee
80 Great Deals out of 5,198 listings starting at $2,500
Used Chevrolet Silverado 1500
117 Great Deals out of 11,554 listings starting at $4,900
Used GMC Envoy
3 Great Deals out of 36 listings starting at $2,600
Used Chevrolet Impala
21 Great Deals out of 979 listings starting at $2,980
Used Chevrolet TrailBlazer EXT
6 listings starting at $4,499
Used Chevrolet Camaro
9 Great Deals out of 989 listings starting at $4,500
Used Dodge Durango
33 Great Deals out of 1,123 listings starting at $4,890
Used Ford Mustang
26 Great Deals out of 1,207 listings starting at $3,000
Used Ford Explorer
18 Great Deals out of 1,788 listings starting at $3,990
Used Chevrolet Blazer
23 listings starting at $3,995

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
2 listings starting at $6,900
2007 Chevrolet TrailBlazer For Sale
13 listings starting at $4,995
2006 Chevrolet TrailBlazer For Sale
4 listings starting at $8,995

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.