I was driving on the highway at 100 mph (after a 200 mile trip) suddenly the tranny engaged into 3rd gear and back to fourth gear with no reason (very fast). It happened 3 times in a two minutes period. Afterwards everything was normal again. The fluid level is OK and in good condition, since I change whatever it drains from the plug every 3000 miles. The tranny does not slip at any gear hot or cold and it does not have any other symptom.
Any hint??

Thanks.

 

maybe it was your car telling you not to drive like an idiot

 

An "I don't have any idea" would suffice.

 

Gremlins man.. they've invaded your tranny.


Do you have the dropping resistor plugged in and functioning?

If so, then just keep an eye on the tranny and watch for stuff like that to happen again.
If it's not plugged in, then plug it in.


FYI, that's a sign of high line pressure in the tranny. usually that means a slow, expensive death for it. if it does it again, it's definitely a problem and most likely you're going to need a tranny shop to check it out for you.

 

Where is the dropping resistor located? what it looks like?

 

i think its under the air box

its small it has one bolt and one wire

 

you don't need to change your tranny fluid every 3k miles...