03 Blazer leaking coolant

65

Asked by Jul 06, 2014 at 11:01 PM about the 2003 Chevrolet Blazer LS 2-Door 4WD

Question type: Maintenance & Repair

I have an 03 Blazer with a brand new radiator.
It has been running fine as far as that goes until
last night where it overheated and started
smoking. I found coolant sprayed over the
undercarriage and when I went to add more
coolant in, the radiator isn't holding fluid and is
leaking from somewhere either  down low, or
around the back of the engine. If it's just a hose
then it shouldn't be too difficult to fix.

3 Answers

70,285

Radiator hose,s are not to bad,but heater hose,s that are behind engine are a little tuff,but not to bad,...Good luck with it.

1 of 1 people found this helpful.
65

At this point I'm hoping it's just a hose. That car is Murphy's law.

16,635

First, did you change hoses when you put in the new radiator? How long ago was the "new" radiator p;ut in? Could the hoses have gone bad if their not new or new? Check the connections before doing anything. Use a tissue to wipe the hose connections t see if they pick up any moisture. Start at the forward p;oint of the coolant spray and work from there back to find the leak. Is it around your water pump? There is a weep hole on the water pump that will leak coolant if the bearings are not keeping a seal, and if they really go bad, it will leak like a sieve. Why was the radiator changed out? Losing coolant? Sure it was not the water pump? Was it changed out at the same time? Start withe the engine. The front is North the passenger side East, back South the drive side West. Isolate where the coolant is coming from and leaking. Then locate what could be causing the leak. Park the Blazer and check which quadrant the coolant is leaking in. North? Water pump or return line. NE? radiator hose connecting to the radiator. Go from there. South East? Yep, the heater hoses.

2 of 2 people found this helpful.

Your Answer

Blazer

Looking for a Used Blazer in your area?

CarGurus has 922 nationwide Blazer listings starting at $950.

ZIP:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,120
  • #2
    yetilikesbeer
    Reputation
    1,410
  • #3
    Rowefast
    Reputation
    1,080
View All

Related Models For Sale

Used Chevrolet TrailBlazer
50 Great Deals out of 4,222 listings starting at $1,500
Used Chevrolet Tahoe
827 Great Deals out of 42,143 listings starting at $1,987
Used Chevrolet S-10
13 Great Deals out of 1,202 listings starting at $1,600
Used Chevrolet Silverado 1500
2,741 Great Deals out of 175,328 listings starting at $955
Used GMC Jimmy
202 listings starting at $2,500
Used Ford Explorer
1,265 Great Deals out of 70,132 listings starting at $1,000
Used Chevrolet Colorado
346 Great Deals out of 38,619 listings starting at $1,595
Used Ford F-150
3,305 Great Deals out of 224,467 listings starting at $1,200
Used Jeep Grand Cherokee
1,082 Great Deals out of 72,844 listings starting at $1,195
Used Chevrolet Camaro
443 Great Deals out of 31,892 listings starting at $1,450
Used Toyota 4Runner
349 Great Deals out of 27,129 listings starting at $1,800
Used Chevrolet Suburban
505 Great Deals out of 24,320 listings starting at $1,799
Used GMC Yukon
616 Great Deals out of 20,554 listings starting at $2,500

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.