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Ranger V8 factory cruise/speed control not working


Rangstang

Well-Known Member
Joined
May 5, 2010
Messages
194
City
Mesa, AZ
Vehicle Year
2003
Transmission
Manual
My credo
If it ain't broke, I can't fix it.
Hi guys,

I installed a 99 Mountaineer 5.0 in my 2000 Ranger Trailhead Group 2WD with a Mustang T5 back in 2010 with a lot of your help (thanks). My truck is an XL and didn't come with speed control. I finally decided I couldn't go another day without it, so I went yard hopping to get a clock spring and wheel switches that would support it.

After installing the servo, cable, switches, and clock spring, I took the truck for a test and found it wasn't working. Looking at the EVTM, I noted that I didn't have the necessary hydraulic switch on the master cylinder, so I temporarily jumpered the connector and took it for another drive. Still, no luck, so I cracked out the EVTM again to verify continuity and impedances through the clock spring, switches, and vehicle harnesses. Below in yellow are all of the paths I've verified. I also tried a second speed control servo/amp assembly. Is the GEM different for a truck with cruise as opposed to without? Could that be my issue?

Any help is greatly appreciated!

speedcontrol1_zps7185fa1f.jpg

speedcontrol2_zps903fb704.jpg
 

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