Check wiring all along the harness. If the tranny is shifting up or down suddenly and for no reason there could be a short in the harness. 90's Ford had a problem with this. May need a new harness or have to make one up yourself.
It is possible. Most new vehicles have a sensor attached to the transmission that tell the speedometer how fast the vehicle is traveling. I suggest checking, or having the sensor checked first.
There have been injector problems, busted seals, and blown turbo problems. The best model year for the 6.0L Powerstroke engine would be the 2006 and 2007 model year. These were the years they got most of the problems worked out on the 6.0L Powerstroke engine.
Generally the speedometer cable starts at the transmission and ends at the instrument cluster. Visually inspect from the firewall in the area of the instrument cluster and track back to the transmission. You should be able to find it with no problems. --mark
99 BMW 323I speedometer problems?
The speedometer is controlled by the speed sensor and it also sends signals to the transmission on when to shift so your problems could be related. The speed sensor is easy to replace and is located on the transmission.
the transmission fits in. the problem is that the 1991 had a mechanical speedometer sensor and the 1994 had electric ones. the car would have drive and fits just then problems with speedometer they are just slightly different. also the axles on a 1991 are slightly different, the drivers fits but the passengers doesn't.
my neon does the same problem . jus lift the dask and jiggle the wire harness .there are two connections ,the one closest to the radio becomes loose
International Truck and Engine Company makes the PowerStroke Diesel engine for Ford. They also made the 6.9L IDI engine and 7.3L IDI engine. They made the 6.9L IDI, 7.3L IDI, 7.3L Powerstroke Diesel, 6.0L Powerstroke Diesel, and 6.4L Powerstroke Diesel. Ford strayed away from International for 2011 because of many problems with the 6.0L and 6.4L. For 2011, Ford is making its own diesel engine, the 6.7L Powerstroke Turbo Diesel V8.
the speed sensor, trans. sensor , or the speedometer cable
What are 2006 Mazda 6 transmission problems.
There are several things that can cause your Cadillac Deville to have transmission problems. The most common transmission problems are worn transmission gears.
The 6.0L Powerstroke diesel engine does put out good power but there are much more better engines that the 6.0L Powerstroke. Some problems consist of blown turbos, blown injectors, and broken seals. I know guys that have between 250,000 miles to 300,000 on their 6.0L Powerstrokes with minimal problems. My 6.0L is a 2007 model and right now it has 55,000 miles and I've had no problems yet. It's proven to be reliable to me so far.