I have a "03" Mercury Sable and the speedometer and the tachometer stopped working both at the same time...the car runs and shifts fine but both of these went out after they acted funny...they were working fine then one day they stopped until the transaxel got warmed up then they would work but the warning light would come on for the transaxel...this happened about 3 or 4 times then they just stopped working...the transaxel warning light doesn't come on any more and the speedometer and tachometer have stopped working...what does this sound like...I really need help on this one...

SOURCE: 2001 Saab 9-3 was driving

take the vehicle to your nearest saab dealer and ask for a diagnostic scan, yuo have a sensor failure, if left it could be expensive.

SOURCE: 2000 Eclipse GT auto trans.

thats one of two things i had the same problem with my 94 honda civic and my 00 mitsubishi eclipse both were not cheep to fix saddly for you man on my civic my tranny was catching and it would stall the motor out idk if that was the complete problem because i sold the car the same day i found out and i do not talk to the guy i sold it too but i seen it running fine a week or so later and on my eclipse it was my ecu for some reason there was a defect or some wires touching or something like that they replaced all my wires and my ecu and it ran fine till i sold it for my 2007 mitsubishi eclipse and gladdly i have not had any problems scince i bought the car

SOURCE: 03 suzuki aerio automatic transmition won t shift into overdrive

You have two temperature lights that come on when you start the car, one red and one blue. After the car is started the red light goes out and the blue one stays on. According to the manual, (and from my personal experience with my '03 SX), the car needs to warm up to a proper operational temperature. This temperature is reached once the blue temperature light turns off, (or within seconds afterwards). If you don't allow your car to warm up you will notice hard or long shifting, rough idle, and poor engine performance. Never drive your car if the light displays a constant red temperature light.
If this solution does not work see a Transmission expert of take it to your local Suzuki Dealer.

SOURCE: All of my gages- fuel, speedometer not working

did you check your fuses???

SOURCE: Car speedo & odometer sometimes work OK, other times not at all.

Most likely a speed sensor is going bad (most cars and truck do not use mechanical speedometer cables anymore) most sensors are located near the differential in rwd cars or near the drive shaft on the transmission. Best bet is to get a Haynes manual for your car to help locate the speed sensor. Remove it and take it to the auto parts store so you can visually compare it to the replacement. Install the new speed sensor and it should restore your speedometer and odometer.