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

72,095

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.

18,165

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 804 nationwide Blazer listings starting at $950.

ZIP:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,210
  • #2
    yetilikesbeer
    Reputation
    1,490
  • #3
    Rowefast
    Reputation
    1,150
View All

Related Models For Sale

Used Chevrolet Tahoe
784 Great Deals out of 40,138 listings starting at $1,799
Used Chevrolet TrailBlazer
57 Great Deals out of 3,891 listings starting at $1,500
Used Chevrolet S-10
7 Great Deals out of 1,107 listings starting at $950
Used Chevrolet Silverado 1500
2,597 Great Deals out of 157,693 listings starting at $1,500
Used GMC Jimmy
167 listings
Used Chevrolet Colorado
315 Great Deals out of 43,577 listings starting at $1,695
Used Chevrolet Camaro
358 Great Deals out of 31,467 listings starting at $3,495
Used Ford F-150
2,943 Great Deals out of 230,832 listings starting at $1,300
Used Ford Explorer
1,018 Great Deals out of 67,538 listings starting at $1,200
Used Jeep Grand Cherokee
859 Great Deals out of 72,064 listings starting at $900
Used Chevrolet Suburban
494 Great Deals out of 23,280 listings starting at $2,895
Used Chevrolet Impala
466 Great Deals out of 31,447 listings starting at $1,000

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.