Problems - Torque Converter??

[David Barnes]

Hello all;
I posted about a month ago a problem (intermittent) with my 99 SOHC explorer. When driving along at highway speeds, it feels like you 'go over a speed bump'. It has since happened at 10 mph, etc. It happened twice this morning on the way to work. The dealer had it 3 weeks ago, road tested it, and said there were no codes. Its going BACK this Friday. Any ideas on what it might be? The manager at the dealer suggested it might be signs of EARLY torque converter failure? Ideas??? If I can go in with something that might help, I don't want to keep going back and having 'we find no problem'.

Thanks much guys.

 

[RiverRat]

It could be a converter like you said. have the shop hook up a scanner and see if the vibratation/slip happens when the converter locks up.