Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Engine And Engine Cooling Problems


really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
1,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2011 Acura MDX engine problems

engine problem

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2011 Acura MDX Owner Comments

problem #1

Feb 012011


  • 1,000 miles


We are currently leasing a 2011 Acura MDX and are experiencing a pinging or engine knock at lower RPM. I had a service technician test drive the car and he recognized the noise and stated that Acura is aware of the problem but does not have a fix for the problem. When I asked if there was potential damage happening to the engine, I was told not to be concerned. Weeks and months later the noise is still apparent "sounds like a diesel truck" and I am beginning to feel a lack of power. I contacted Acura customer service directly and I spoke to a customer service representative at Acura that told me they are aware of the problem but there is still no fix from their engineers. I am reporting this issue to hopefully gain some traction for the Acura engineers to Focus their efforts on creating a solution to the problem. I have had great success with the Acura brandin the past. However I am disappointed that I am being told that I have to deal with a premium SUV that sounds like a diesel truck.

- Englewood , CO, USA

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