Possible Front tire brake grinding:

Asked by May 26, 2013 at 04:59 PM about the 1996 Mazda Protege 4 Dr DX Sedan

Question type: Maintenance & Repair

Hi. I have a loud grinding noise (metal-on-metal sounds) emitting from what may may
be the right front tire area when I stop and lightly accelerate after stopping. The vehicle
is a 1996 Mazda DX Protege with 179,000 miles,tires air pressure is stable or
consistent.
The front tire rods need to be replaced (saving for this) so I can get a proper front tire
alignment and straighten the tires out from the 5 to 7 or 10 degree angle that they are
sticking outward at (interior wheel treads wear down quickly). I moronically put some
coolant in the brake system a month ago. Three quarters to an inch at top. A mechanic
sponged the liquid out of the brake fluid container and vacuumed the rest of the brake
fluid and then refilled the container with fresh fluid within twelve hours (and an hour of
driving in that time frame) after I mistakenly put the coolant in the engine brake
container. Is this the reason for the grinding noise? Is it a rotor,alignment issue,simple
pad problem?

2 Answers

3,670

The coolant is probably not the issue. Coolant has a much lower boiling point than water, and the heat from braking would probably boil the coolant, giving you a very weak brake pedal. Brake fluid is hydroscopic, which means it absorbs water, so whatever small amount is in there...I bet youre ok. You should flush the system just to be safe. The grinding noise could be a number of things. The most likely is the brake pads are worn down to their backing plates. If youre hearing a grinding noise, you really shouldnt be driving the vehicle for safety reasons. Not to mention the possible further damage you can do (rotors, calipers, axle boots etc can be ruined). Have someone qualified look at your vehicle immediately.

1 people found this helpful.

I did and thank you!

Your Answer:

Mazda Protege Experts

  • #1
    James Kithuka
    Reputation
    300
  • #2
    dandyoun
    Reputation
    220
  • #3
    Js08016
    Reputation
    170
View All

Related Models For Sale

Used Honda Civic
352 Great Deals out of 49,260 listings starting at $1,499
Used Toyota Corolla
600 Great Deals out of 66,186 listings starting at $900
Used Honda Accord
552 Great Deals out of 102,993 listings starting at $950
Used Hyundai Elantra
457 Great Deals out of 48,314 listings starting at $1,700
Used Toyota Camry
746 Great Deals out of 72,550 listings starting at $1,000
Used Subaru Impreza
176 Great Deals out of 22,273 listings starting at $1,950
Used Mazda MX-5 Miata
50 Great Deals out of 4,598 listings starting at $1,900
Used Honda Civic Coupe
95 Great Deals out of 10,836 listings starting at $975
Used Mitsubishi Eclipse
21 Great Deals out of 857 listings starting at $1,350

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.