Cruise Control Install - Part 2 - 09/03/2015
Time to finish up the job.
Brake switch and vacuum switch are installed. Pulled the collar clip from the spare brake pedal and stuck it in, then screwed vacuum switch in.
Need to tap off a +12V switched source, and the junction block that these cars have above the parking brake pedal is perfect. The left side (pink wire) is switched and the right side (orange wire) is +12V all the time.
Cruise control fuse is installed and run over to the junction block. No clue what size fuse it is supposed to be, so I used a 10A because that's all I have on hand. A 5A would probably work just fine.
Need to route the speedometer cable. According to the factory drawings and assembly manual, the cruise control speedometer cable comes through here. There is a dimple in the firewall to locate a 1" hole.
Firewall hole is cut with a hole saw. JUST barely enough room to do it without pulling the booster or the wiper motor (evidence that drill bit kissed wiper motor is obvious).
Cable and grommet are installed. It isn't a super tight fit so I'll likely have to silicon or glue the hole and grommet together.
Need to install the transducer and vacuum diaphragm. The dimples on the inner fender actually are where you are supposed to drill: 5/16" drill bit was used to open the holes.
Holes in the fender locate everything perfectly.
Everything is mounted up with ease.
Per the factory drawings, the accelerator cable is routed over the booster and UNDER the spark plug wires (it was pretty adamant that was how you do it, so it must have been important).
Special ball stud with extra cotter pin stud is installed. Same with extra cruise bracket mount, it bolts directly to the throttle cable and aligns up perfectly.
Vacuum source is tied off of the PCV.
The very grainy photo of routing the speedometer cable to the transmission.
Used the factory locating clip to keep the cable from touching the exhaust or binding in the shift linkage.
Last things last! Time to install the cruise control specific turn signal lever. Remove the steering wheel and lock plate to get to the turn signal switch.
Removing the turn signal switch and then snaking the wires down through the hole where the turn signal switch wires makes it pretty straightforward. It's amusing how much nicer this turn signal switch is compared to the old one...
Cable is routed out the bottom.
Switch is hooked up to the control wiring!
That's all there is! Pretty straightforward job with all the right tools. This was listed as a dealer installed item back in the day...
Return to 1973 Grand Safari
Last updated September 3rd, 2015