2010 Mazda CX-9: engine knocking or ticking

5 of the 195 complaints about the 2010 Mazda CX-9 describe engine knocking or ticking.

owner complaints: 5
of this car's complaints: 3%
typical mileage: 26,000
recalls: 0

Is there a fix? 30 service bulletins cover this area of the car. See below

Engine knocking or ticking by model year

2018
2
2017
2
2015
1
2011
1
2010
5
2008
4

What owners say

Filed Jul 22, 2018 · Engine · 108,000 miles · MA

Car was always serviced regularly. One day I was about to get on a busy highway into boston just before rush hour, when my car suddenly made a loud knocking noise in the engine. I immediately pulled over and then the car shut off. No lights ever came on beforehand and no leaking of fluids ever happened before incident. Had it towed to mazda dealer, who at first told me they wouldn't be able to even look at it for 6 days. Friend worked there and got mechanics to look at it right away. They said the water pump was gone and it would cost $3500 to fix it. The worst part of it was, that according to the dealership, they know that there is a flaw with where the water pump is located in the engine, and that because of this the engine was most likely gone as well. In their words, they have replaced many water pumps in these same situations over the years, and only one car didn't need a new engine. They recommended fixing the water pump, then putting in a new engine--$10,000 worth of work. We bought this car certified pre-owned from a dealership. It only had 108,000 miles on it and the extended warranty had just ended 8 months before. I have numerous other cars in my lifetime and never have I had to replace an entire engine, just because the water pump was gone! This car should have been worth about $9k-$11k for resale, and instead mazda wanted to give us $2k towards a down payment for leasing another of their cars. They gave us a rate that they claimed was a special one, however, I found out I could get an even better one online myself! When we called them on this and said we were tired of dealing with this, they told us they wouldn't talk with us anymore. Very disappointing to a family that carefully watches its money and budgets for emergencies, but weren't prepared to need an entirely new car before the other was even paid for! So unfair!

Filed Jun 7, 2013 · Transmission · 26,000 miles · OH · fire

Tl* the contact owns a 2010 mazda cx9. The contact stated that the vehicle exhibited an overpowering burning odor from the vents. In addition, a loud knocking sound came from under the hood. The contact took the vehicle to the dealer and was told that the transfer case needed to be replaced. The dealer test drove the vehicle and the engine seized. The vehicle had not been repaired. The failure mileage and current mileages were 26,900.

Filed Dec 2, 2012 · Engine · 38,409 miles · TX

Ticking noise was heard as I accelerated the vehicle and as left turns where made. The ticking noise was louder when the engine was cold. Mazda recommended to replace engine immediately without further inspection. When I asked what was wrong with the vehicle mazda said sludge was found on the dipstick. They blamed me the consumer and mazda would not honor my extended warranty which I purchased though them at the time of my initial purchased of the vehicle.

Filed Feb 21, 2011 · Engine · 22,000 miles · NY

There is a ticking noise in the engine when idle. When the engine is cold the noise is louder. The vehicle has been taken to the dealer. The dealer states that there is nothing to fix. The dealer is informing me that it was the characteristics of the vehicle and it was inspected by a mazda engineer. The engineer claims that this is a normal sound for this vehicle and engine. I explained that I had not heard this on any of the other cx-9's I drove. The dealer tried to claim it was due to different engines. I informed the dealer that they all had the same engine. Again, he said there is nothing to fix (the ticking is normal). I informed the dealer that it is the opinion of another automobile shop that this sound is not normal and should not be occurring (I was at the other shop the week prior). The dealer responded by saying the other shop is not a mazda dealership and their opinion does not matter.

Filed Sep 21, 2010 · Engine · 1,500 miles · NJ

Tl*the contact owns a 2010 mazda cx-9. The contact stated that there was a loud ticking noise in the engine. Once the engine was cold the noise became extremely loud but when it was warm the noise ceased. The vehicle was taken to the dealer twice. The first time they stated that they corrected the problem by down loading information from the computer in reference to the PCM and told her that it was corrected. When she drove the vehicle it continued to make noise. She then returned the vehicle back to the dealer and they were diagnosing the failure for an entire week. The dealer informed her that it was the characteristics of the vehicle and it was inspected by mazda engineers. The engineers told her that it was a normal sound compared to other vehicles and that her vehicle was just louder than the others. She did not call the manufacturer because the dealership told her that they would contact them. The vehicle was not repaired. The failure mileage was 1,500.