Where is my 1 2 shift sensor 2000 gmc jimmy

Diagram here

https://images.app.goo.gl/s1aa2iTe3CLBGzQc7

https://www.google.com/search?q=1993+gmc+jimmy+slt+4x4+4.3l+crankshaft+position+sensor+location

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Its more than likely a shift solenoid sticky causing this problem.Its located inside the transmission oil pan in the valvebody.

The vehicle speed sensor(VSS)is located on left rear of transfer case on 4x4( 4wd) 1993 jimmy.Ensure ignition is off.Raise and support vehicle .Disconnect VSS electrical connector.Place a container under VSS mounting area, to catch transmission fluid when VSS is removed.---- On 4wd the VSS is threaded,un-thread VSS from transfer case.Then remove VSS and O-ring.Installation in reverse.--------- This will help.Thanks.Helpmech.

Hello jerryparker6,
The image below shows the location of the crank position sensor.

I hope this helps.



Regards,
netvan

I had the same problem with my 1999 Silverado which would blink several times on the mode I selected then go back to the 2 wheel High. I found the switch module to be defective, after replacing it I have never had the problem again.

look way down at the bottom of the engine right behind the crank shaft pully and the balancer u should se the wires on the pasenger side they usualy are facing slightly down and there is only one bold holding it in.

The reason you engine over heats is the engine cooling fan(s) are not coming on. They run by a coolant sensor and a fan relay.
You may also want to make sure you have the proper amount of coolant in your system.

Is your Jimmy a push button 4x4, or do you have to pull a lever to shift to 4x4 ?
Please let me know so I can help guide you through either of these repairs.
We aslo have the parts you need :
www.aescompaniesllc.com
click on the contact.

is it electric push button
if so its a sensor on the transfer case an or one of the wheels.....
if its manuel then the main shaft is striped....
or its seezed under your jimmy an dont wanna shift

It sounds like you need a transmission output speed sensor.

what kind of car do you have