This scared the crepe out of me.

This morning while starting my 04 Max, no mods, 24,000 miles, automatic, it made a knocking sound for about 5 seconds. Almost like if it was diesel. It was about 45 degrees, so it was a little colloer than usual.

After it stoped I backed out of the driveway, and other than the hardshifting when cold, I had no problems. No smoke out of the tailpipe or anything.

By the way hi guys!

 

welcome aboard to maxima.org! what took you so long? 24k miles and this is your first post?

 

Mostly just reading.

 

Just an update.

It did it again this morning but it was barely noticeable.

 

You my friend are a victim of a selenoid valve problem. You need to take it in to get checked out before it kicks into a fail safe mode and your car won't go in reverse and will start to skip. Also check your transmission oil and make sure its a translucent pinkish color