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A lot of people have experienced this. I have oily patch there too. Water pump needs replacement. But I cant find a mechanic willing to do this.

Looking for a mechanic willing to replace water pump in Austin TX. 2010 CX-9 with the ford V6 engine.

Oh my! Could carmax be this dumb?! Thanks for the info on the weephole. I have seen the repair video on youtube and that showed the weephole. Your explanation makes sense.

Update: I seemed to have made a mistake in saying that there was oil in the coolant. I thought that the coolant felt slick and oily. I actually tried feeling the coolant from a new coolant bottle and it also felt oily. I guess I never played with coolant before! So bottom line is that there...

Its been almost a year now. Did you get the water pump replaced? Was it worth it? Is the engine still running ok? I have the same issue now and same decisions to make.

did you ever change the water pump?

Thanks for the suggestions. Any concerns with the crankshaft pulley being a tiny bit wobbly? Here is my slow motion video on that: https://photos.app.goo.gl/r9yiKnqxV67tAZeK6 (I feel that the wobble probably normal)

Update: I was wrong about no oil in the coolant reservoir. It just seemed clear. I put in a rag inside and touched the coolant. Its definitely oily. So it seems that coolant and oil has mixed although not a lot to cause engine oil frothing. I do use synthetic oil and I heard that synthetic does...

Yes coolant was low and was at the min line. But that has been happening slowly for the past 3 years. Oil has NEVER been frothy. The coolant in the reservoir goes from max line to min line once every 1.5 years. It has been doing that for the past 3 years. So I basically have filled coolant from...

Took it to the dealership which as expected turned out to be a stealership. The dude says I need a new engine. See at 1:52 of this video he sent me: https://photos.app.goo.gl/H1vE4G6qDqQeUGH59 The oil is not frothy so I dont think the coolant has made its way into the engine yet. Will a water...

Yes the sound is same while in gear. Harder to hear if I rev up the engine. No loss of power. No visible smoke or any unusual smell (ok maybe it smells like a typical 140K mile ford engine). I also feel that its some kind of failing wobbly bearing.

Belts have never been replaced. They look ok. No screeching noises. Temperature is perfectly normal. Heater heats fine. I have had to add 1 fourth of a quart of coolant every year (past 2 years). I was just mentioning water pump because I thought maybe the little metallic fan thing in the water...

Car has 144K miles. Only work that has been done includes: 1. Fuel injectors and spark plugs replaced I have tried to capture the noise in this video. Noise is there even with AC off...

S197GT those were my exact thoughts! I heard pinging on my 89 geo metro in college days when its tiny 3-cyl 60hp engine use to groan when going up freeway ramps. When I heard it again in my 270hp cx-9 engine I was like "that cant be engine pinging!" Anyway, I did find that TSB thankfully. I had...

Please please can anyone send me this TSB? I have a 2010 CX-9 with the exact same issue. When engine is cold I can hear the knocking under moderate load. When its at operating temperature, then the knocking goes away. I have also noticed that knocking is less when its raining or humidity is high...

Similar experience when my sport was fitted with the rear camera by the dealer. Basically the installation is too complicated because Mazda tried to save $5 by leaving out wiring for the camera kit. Dealers are horrible accessory installers. For me, they left the rear gate seal open which...

2010 fwd sport: 23MPG Hwy 18.5MPG Suburban streets Note: When calculating hwy mileage, make sure to average both directions since incline and wind direction can make a big difference. In my case, hwy was 22 in one direction and 24 in the other. The onboard trip computer shows the mileage to be...

I just posted my question here. The problem you mentioned sounds like mine. Here is my summary. Are you experiencing something like this: Jerky transmission in same gear I feel a thumping jerk when im within a same gear but take off my foot of the gas and push the gas again. Im not abusing the...

I feel a thumping jerk when im within a same gear but take off my foot of the gas and push the gas again. Im not abusing the gas pedal but actually do it very slowly. But whenever I engage the gas again, I feel a thumping jerk as if the engine power was disconnected from the wheels when my foot...

Same problem with my 2010 1 month old cx-9. A friend decided against buying the cx-9 because of this hard-to-move seat.