NHTSA — Power Train Problems

2009 Mercury Mariner (Page 3 of 3)

2.3

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
67,808 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.

2009 Mercury Mariner drivetrain problems

drivetrain problem

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2009 Mercury Mariner Owner Comments (Page 3 of 3)

« Read the previous 20 complaints

problem #1

Jan 052011

Mariner

  • 21,000 miles

A D V E R T I S E M E N T S

On multiple occasions starting in Jan 2011, the vehicle would hesitate to select a gear and accelerate while trying to leave a stop light or sign, or after making a turn leaving a few second lull where the vehicle is unresponsive. The previous transmission software re-flash was performed again even though dealer was unable to replicate problem. Issue still persists occasionally, as well as a new symptom since March (23,000 miles). Now, sometimes when coming to a stop the vehicle will stall as though the transmission did not downshift to a lower gear. Placing the vehicle in neutral and restarting allows continued operation. These issues combined with inconsistency in shifting performance as noted by many others lead me to believe there is still a component and/or software problem with this 6F35 transmission. However, since the problem cannot be consistently replicated by the dealer they are unsure of a remedy.

- Garland, TX, USA

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