maxima667

Hello - Wonder if anyone can provide some guidance on thisissue with my '04 Maxima with auto trans. This just started today on the way home from a short trip.
I had my cruise control on, and was doing around 75.Normally, when I go up a mild hill, the engine will downshift to maintain speed. The revs will go from around 2600 to 3500 or so, then drop back when the grade levels out.
Today, what happened is that the trans downshifted like normal, but then a few seconds later it downshifted again and the revs jumped to 5000. I of course turned off the cruise control. This happened several times, and it's never happened before.
The car runs fine with the cruise control off, so I am thinking the problem is with the cruise control, not the transmission.
I don't know much about the cruise control, but assume it is some type of electronic device. Does it sound like maybe the cruise control is going bad? Has anyone ever had an issue like this?
Thanks.

fatboyslim86440

iTrader: (1)

may have hit a steep up grade and down shifted another gear...

infiniti medic

Did it feel as though the tranny was slipping. Need mor info on the cars condition.

infiniti medic

It does not sound like a cruise control issue. It sounds like a speed sensor issue. Cruise is just keeping the car at speed. Although a large grade would cause a down shift

maxima667

I don't think it sounded as though the trans was slipping but I didn't really listen for that. Soon as the revs shot up I turned off the cruise control because I knew something was wrong and didn't want an engine with 162K miles on it over-revving. The car is in great shape mechanically and I want to keep it that way.
Thanks for the info on the speed sensor.
I am going to get it into the shop. My mechanic is good and honest, but I wanted to be "forearmed" anyway.

steezmuffin686

ascd switch. located under the kick panel by ur feet. had something similar happen on a test drive at work...ended up being the automatic speed control device...or w/e its name is.