Throttle Solenoid??

Cougar Community Classic Cougar Maintenance Restoration and Repair
1

So I’m pretty confused here (though that doen’t take much). I am trying to figure out what the hell the throttle solenoid does and how it is attached, wiring wise, to my 72’ Cat (XR7 / 351 Cleveland / Autolite 2100 2bbl Carb). I had to replace the carb when I first picked up the car, and noticed the throttle solenoid WAS NOT attached (wiring wise) at all, but was attached to the carb next to the throttle linkage. How does NOT having a throttle solenoid affect the ride? I have had some cold start issues where the engine will just stall once started, some heavy hesitation on a cold engine, and some serious hot start issues…—> Once the engine is warm and turned off for about 3-10min, the engine will just repeatedly crank but not turn over (drains the hell out of my battery). If I let it sit for a while though, it’ll crank right up. Could the throttle solenoid have anything to do with these issues, and can someone breakdown how to wire and calibrate the solenoid itself? Thank you for all your help and support!

Very Respectfully,

Justin

2

The solenoid is generally for AC and kicks the throttle up when the AC is running. I would say the problem is something else, in the carb most likely.

3

Your symptoms sound like a flooding problem. This is normally caused by the float set too high. Did you adjust the carb after you bought it? Many people don’t know this, but new carburetors are not necessarily in adjustment. If you aren’t comfortable with fiddling with the bits of your carb, take your car to have it adjusted at a carburetor shop. Have it adjusted on the car. They can do amazing things to get you car running correctly.

4

The throttle solenoid is an anti-dieseling device that totally closes the throttle blades when the ignition is turned off. Idle is set with the solenoid energized.