'96 4.0 Auto tranny overrevs from 2nd to 3rd

[Lefty]

Just bought a what-I-though-was MINT '96 Explorer that has a new transmission installed - 100K on drivetrain. As I said, the overall condition is primo, and I bought it from my auto mechanic who has given me great service for over 5 years.

But ... I've begun to notice that when it switches gear from 2nd into 3rd, the revs bump up from 500 to 1200 RPM and it takes a good second or two to be fully engaged. It does this regardless of whether the selector is in OD or not.

Before I take it back to my mechanic - is there any info you guys out there could share with me? Is this a known/standard issue with this transmission? what could be the likely cause? What's the remedy? Is there any harm in driving "as is" or should I get it back to him ASAP.

All advice to this new Explorer owner greatly appreciated !!

 

[Lifted95X]

With Explorer trannys....if they start acting up.....take it in. If you do a little searching on the forum, you will find that our transmissions are poorly designed. I'm on my third one already. And, since you say it is a new transmission I would definately take it back to the mechanic and have hime fix it. If not.....you'll be paying a lot later.