Question about 1996 Oldsmobile Cutlass Ciera
If the speedometer suddenly drops back and then returns to being close to your actual speed and the transmission shift or acts up at the same time this is happening then you may have a failing Vehicle Speed Sensor, usually refered to as a VSS. This sensor tells the engine computer, instrument cluster, and transmission controller how fast you are going so the controller can select the proper gear for the transmission to be in. If the speed signal is lost, wrong, or erratic then the transmission may make a quick downshift to to try and match this new, but incorrect, speed and then may make an equally quick upshift to rematch the correct speed once the signal is correct again. This should be an easy one for anyone with a good scan tool to check out as the actual speed reading signal can be observed during a test drive and it's usually pretty easy to spot the glitches. Good luck, hope this helps!
Posted on Jul 30, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Dec 12, 2017 | Chevrolet S 10 Cars & Trucks
Jan 23, 2014 | 1996 Honda Accord
May 26, 2012 | 1995 Buick Riviera
Jun 07, 2017 | 1998 Ford Windstar
Nov 16, 2010 | 1999 Lincoln Navigator
Jan 11, 2010 | 1998 Chevrolet C1500
May 16, 2009 | 2000 Dodge Caravan
Apr 25, 2009 | 1999 Dodge Grand Caravan
Sep 02, 2008 | 1999 Mercury Sable
157 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: