Old Man

Sorry it took so long to get back to y'all, it was the ground breaker on the firewall that went bad, gentlemen your help is greatly appreciated ❗

The one on the firewall next to the starter relay, ground breaker is what I thought you called it.

adI crossed the terminals on the black ground breaker with the key on and could hear a humming sound from the black box and a clicking sound from somewhere. Had my son hold the key in the start position then I crossed the terminals and motor started and ran for about 2 seconds . I've had the truck probably 10 years but only put maybe 5k on it on a year. You can't offend me, I grew up holding the flashlight for my dad.

I'll give it a try a try, thanks gentlemen.

I have no electricity for exterior and interior lights. Batteries almost new. I crossed the starting solenoid on the firewall and the motor turned over like normal but failed to start.

Thank you, thank you, thank you, these are the diagrams I've been looking for. I'll double check the spaghetti line placement in diagram 1 tomorrow. I installed all new o rings in diagram 3, purchased them as a kit. Diagram 2 & 4 looking for a rebuild kit, just haven't come across it yet. Thanks 

I have already thrown the old one away, can't remember the color for sure but the reason I purchased a new knob is because it's was doing what it's doing now and thought it might have been my problem. I've owned the truck for about 10 years and this problem has just popped up. Again thank you.

This is the new that replaced the old, both look exactly the same. I switched one line at time with both knobs side by side. Air leaking out of round dark hole at the bottom of the image. The range selector works just fine and is audible. Thanks for your help.

I removed the small plate with cylinder underneath with shifting fork . Replaced all 6 o rings with new.  Started truck, built up pressure, still leaking at shift knob. Pulled airline off top with system full charged no leaking by new o rings.

9 Speed T2090 replaced gear shift knob with new one with range selector, new O rings in range selector cylinder on top of transmission, no air leaking by when line is removed. What's next, slave cylinder?

Are you talking about the slave valve on top of the transmission or is this cylinder located elsewhere?

Replaced leaking knob with new one and still leaks out of bottom of knob from the bottom hole in the image.