84 Club Car 36 Volt Wide open only as soon as it comes alive
 

CORRECTION 1982 36 volt
As soon as you push the pedal just 1/2 inch it goes full throttle.which is faster than normal speed . Like Burn out marks on cement!! Fast. No body has been tampering with it . It did act like it had 2 speeds for a long time and then it just started 1 speed BURN OUT !!!! Away You go Same in reverse. Any one out there have the Diagnostic Instructions to check it out or know what may be going on here? Thanks Rick.

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

There are five solenoids on the cart and three resistors. There are five microswitches attached to a stepped ramp that are engaged in series as you push the throttle. As you look at the solenoids from driver to passenger side they are solenoids 1-5, 1 is the master.

Microswitch 1 engages solenoid 1 as soon as the pedal is pressed, this nets no movement.

Switch two engages solenoid 2 which is "first gear" and has current flowing through 3 resistors.

Switch 3 engages solenoid 3 which is "second gear" and current flows through 2 resistors.

Switch 4 engages solenoid 4 which is "third gear" and current flows through 1 resistor.

Switch 5 engages solenoid 5 which is "fourth gear" and current flows straight from the batteries to the motor.

Over time, the solenoids tend to fail. It sounds as if your solenoid 5 is possibly welded closed and maybe solenoid one also, and some others are not working. It is a really good idea to check all your microswitches first (simple normally open switch, check with a continuity tester that they close and open when the lever is pressed) and then replace any which are bad. Then replace any bad solenoids, which in your case may be several. It is advisable to replace all 5 at once to cut down on repetitive repairs when the next one goes out, since they have probably been in service since 82 they will be very brittle and are bound to fail soon if they haven't already.

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

Thanks for the info. I can likely get through this with your explanation and the wiring diagram that I have.As I work on electric carts and chargers daily . Mostly newer ones. Now I can Surely GET SOME SMOKE GOING NOW !!!
NOT ! Just kidding. I hate when the Magic smoke comes out !!!!!
Seriously Thanks for your time and Knowledge. Rick

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

:thumbup: These old carts are pretty simple in nature, so if you can work on newer ones this one will be a piece of cake once you get into it. If you hit a snag or need any help just let us know on here, we'll do our best to help you get her running on all 5 again. :mrgreen:

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

Easy to work on - no electronics to let the magic smoke out of. :-) You might have a stuck solenoid. Sounds like as soon as the main solenoid closes, you have full power. You should have all of the resistors in series with the motor when the pedal is just pressed. The further you press, the more solenoids are energized which shorts out some of the resistor coils. This is how it increases the power delivered to the motor.

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

Thanks a lot for taking me up under your wing .You might say. I am going to do some poking at it in the am with a good volt/ohm meter and a good helper that is (color blind ) oh well i`ll say hold it on this wire while i check over here. I`ll Let you guys know what I find. Thanks so much. Rick

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

Ok Guys the verdict is in ! #5 sol Welded shut as we thought. # 3&4 sol Failed.
# 3 micro switch Intermittent. So It gets a set of 5 new sols and it got a new micro sw from stock. Hooked pedal box up to 12 volts and operated one of the good sols off of each wire from pedal switches. One at a time to check that they would carry the proper amp load for sols to latch in. They all pass now. Now we wait for sol set to arrive . Thanks again I`ll let you know after friday or saturday.

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

:thumbup:

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

Good to hear you have it pinpointed! Let the know the outcome. :thumbup:

Re: 84 Club Car 36 Volt Wide open only as soon as it comes alive
 

Thanks so much Guys. The whole mission went off without a hitch. Pulled the board out and got it up on the bench. Cleaned all connections up proper,Replaces all sols and most nuts and bolts, put it back in. Presto All speeds work . After a A 2 mile ride to the drive thru for a cold pop and Its Ready for a summer of fun . Thanks again Rick