Maybe a sensor is messing up
4L80E
screwed into the transmission.
When the check gauge light comes on in the 1995 Chevy Cheyenne, it means there is a problem with the transmission. If the truck won't shift in to overdrive, there is most likely a problem with the VSS system. The transmission needs to be removed so the VSS can be accessed.
Standard or automatic transmission, they both are mounted to the transmission.
the hold light on on my mazda truck b 2600 stays on or flashing and it shut the engine off
the diodes in the alternator have gone
Usually located on the transmission.
ecu fuse no power the truck no crank
Poor GM engineering is the real reason that the light comes on. But seriously you need to have a dealer or service tech hook up the truck and get the code to determine why the light is coming on. Remember that this is a sealed transmission, GM decided to engineer it to never be serviced. So most repairs will need to be done by the dealer or a transmission shop. And don't let them scam you about changing the Transmission oil, like I said, it's a sealed transmission, they can't change out the filter and oil on it.
you can find the switch by looking underneath the truck right below the stick shift
The engine/transmission needs servicing/repair.
That truck should have the 700R4 transmission in it.