Coolant leak?

Asked by Mar 17, 2017 at 03:04 PM about the 2005 Mazda MPV ES

Question type: Maintenance & Repair

My 2005 Mazda MPV (130K miles) is leaking coolant somewhere but I
have no idea where!  Went throught an entire reservoir in 2 weeks time
with minimal driving.  Weird thing is there is absolutely nothing on my
driveway to indicate a leak!  Oil looks perfectly fine, so no problems there.  
Repair place tried to tell me it was water pump, but thinking there would be
an external leak on my driveway if that were the problem.  Any ideas?

2 Answers

299,935

Could be any part of the cooling system. No need to guess and replace parts. Only way to know at this point is to perform a coolant pressure test, that way when the system is pressurized, it will leak at the spot your trying to find. You can rent the tool at your local auto parts store or have your mechanic do it. Did you check the transmission fluid? The transmission cooler can leak, and coolant and trans fluid can mix. But probably not your issue if your going through coolant very fast. Another thought would be a leaking radiator and the coolant is evaporating before it hits the ground.

My 2006 Mazda mpv was loosing coolant and after exhaustive checking, it was the radiator cap , although it looked perfect I finally realized that each time I checked it the reservoir didn't have the pressure that you would expect while taking it off. Hope this helps someone. Frank

Your Answer:

Mazda MPV Experts

  • #1
    bobbyleveille
    Reputation
    1,060
  • #2
    Gary John
    Reputation
    510
  • #3
    Michelle Ann
    Reputation
    340
View All

Related Models For Sale

Used Mazda MAZDA5
10 Great Deals out of 382 listings starting at $2,490
Used Toyota Sienna
24 Great Deals out of 745 listings starting at $2,950
Used Honda Odyssey
26 Great Deals out of 967 listings starting at $1,795
Used Mazda MAZDA6
10 Great Deals out of 592 listings starting at $1,200
Used Mazda MAZDA3
44 Great Deals out of 2,738 listings starting at $3,800
Used Nissan Quest
3 Great Deals out of 50 listings starting at $3,995
Used Mazda MX-5 Miata
7 Great Deals out of 204 listings starting at $5,995
Used Honda Pilot
14 Great Deals out of 730 listings starting at $6,495
Used Dodge Grand Caravan
126 Great Deals out of 10,103 listings starting at $1,800
Used Mazda B-Series
53 listings starting at $7,945
Used Mazda Tribute
4 Great Deals out of 146 listings starting at $1,795
Used Toyota RAV4
80 Great Deals out of 3,950 listings starting at $838

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.