# Serious Auto Transmission Issue (plz help ASAP) **URL:** https://forums.speedlife.net/t/serious-auto-transmission-issue-plz-help-asap/112319 **Category:** SON240sx Automotive **Created:** [January 8, 2008, 9:28pm UTC](https://forums.speedlife.net/t/serious-auto-transmission-issue-plz-help-asap/112319 "2008-01-08T21:28:33Z") **Posts on this page:** 1 **Showing post:** 7
### Author: ![nwmrkt](https://avatars.discourse-cdn.com/v4/letter/n/aca169/32.png) [@nwmrkt](https://forums.speedlife.net/u/nwmrkt) #### Post date: [January 14, 2008, 9:04pm UTC](https://forums.speedlife.net/t/serious-auto-transmission-issue-plz-help-asap/112319/7 "2008-01-14T21:04:41Z")
> [@Saturday, N. Buffalo, 8pm, Poker..sign in](https://forums.speedlife.net/t/saturday-n-buffalo-8pm-poker-sign-in/15437/19): > > I disconnected the Revolution Sensor, which was the 3 pin one apparently. The first time I started the car after disconnecting it, no O/D flash, then after a while the transmission went into failsafe mode and stayed in 3rd. Afterwards, I turned the car off for a good 5 mins, then restarted it, and the O/D light flashed. > > Update: > I’ve put about 30 km’s on it today, its running absolutely wonderful (except for the 1-2k rpm hesitation, which isn’t tranny related, prob dirty MAF sensor, btw is it safe to use throttle body cleaner on the MAF element?). > > Thanks very much guys, it really helps to have techies with ready solutions or links to articles with solutions to common problems people face. > > You just saved me a buncha money and embarrassment from trying to convince my family and friends that an old 240 would be reliable. Thanks again. 😃 I think you"should use some sort of “electrical” spray cleaner, as recommend by some ( i asked this awhile back on another forum). As the maf sensor is pretty sensitive. --- _[View the full topic](https://forums.speedlife.net/t/serious-auto-transmission-issue-plz-help-asap/112319)._