I have a new problem on my 2007 FEH, 65,000 miles. When the engine is warm and I come to a quick stop the engine shuts down with a thump. Up until now, the engine shut off was near imperceptible. When the engine shuts off on a gentle stop or while running at slow speed it is smooth, as it always was.

Has anyone else see this? Tone ring again?

 

Mystery solved. It was the left front tone ring cracked and loose. I have previously replaced the right tone ring. I'll epoxy it back on and replace it next spring. I epoxied the other one and when I finally went to replace it about 6 months later, the epoxy was still holding strong.

Three lashes with a wet noodle for the engineer that designed this tone ring, and ten lashes for his management that did not correct the design over these many model years.

 

I have been getting around 50,000 miles on the tone rings before they fail. A big time crack can cause vehicle malfunction in that it is unsafe to drive while the service 4x4 system and braking system warnings are flashing on the dash.