My 1994 Mercury Sable 6cyl 3.0

Extreme cold can affect sensors, has this only been since the onset of cold weather?

mark (mhpautos)

It didnt happen last winter. but it only started messing up two days ago. my family says its the speed sensor, and my friend thinks that it could just be the cold weather. But it seems to be driven a little different, and i think the rpms meter could be displaying the wrong thing too, i was sitting idle and it said i was had 1000 rpms, is that right?

The speed sensor may be faulty, you can get the engine revs checked with a scanner and compair with what your tacho is reading, the scanner will also pick up any problem with the speed sensor, get this done first.

mark (mhpautos)

okay, thanks, im only 16, and only had this car since my birthday last christmas, so where would i go to get all this checked out and fixed?

Your local mechanic should be quite able to do these simple checks.

mark (mhpautos)

okay thanks i'll do that when i get enough money.

Let me know how you get on with this.

mark (mhpautos)