EZGO txt series DOA throttle issue

Twizted

I have a 36v series txt (do not remember the year at the moment) that had a full charge but would no excite and move. I thought it was maybe A bad reed switch but it appeared that someone had already bypassed that years ago before I owned it. It was connected with a ring terminal in the charging port but the other side was cut and no wire lead anywhere. Was not even in the loom anymore leading to the controller side of the cart.

I jumped the solenoid and accelerator worked so decided it must be that. I replaced the solenoid and got down the street and dead again. What could be going on here? All connections seem to be tight, all batteries are at 6.4v. Next step for what to test would be appreciated. Thanks

BGW

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

JohnnieB

Does the solenoid click when pedal is pushed?

If not, measure the voltage at the solenpod's small terminal with two red wires on it when pedal is pushed (Key on and F/R in F - rear tires in air for safety)

If it doesn't go to battery pack voltage (38.2V or so), the pedal switch is the most likely suspect.

Twizted

To be clear, the voltage between the two small terminals?

JohnnieB

Unless otherwise specified, all voltage measurements are referenced to the battery pack's main negative terminal.

Twizted

Battery voltage 37.8, terminal voltage is 37. So took it on a ride and after it dies you let it sit and cool down and it will operate again. Lifted seat and main positive battery cable to solenoid is hot and solenoid hot. No other cables or components are hot, took positive able off connects and cable are ok. What do I check next?

JohnnieB

If it dies while running and will run again after setting for a few minutes, the controller is going into thermal shutdown.

Does cart have oversized tires?
Does cart have rear seat?

If so, a larger than stock controller and solenoid are needed.

------------------
The high current cables are connected in series, so the same amps flow through all of them and none of them ought to be hotter than the others. If one is hot and the others are not, the hot cable is bad and needs to be replaced. All cables should be 4Ga or larger.

Twizted

Cart is stock except for 4awg cables and does have rear seat. Has operated for 6 years with no issue up to this point. Will try changing the cable and report back.

Twizted

Replaced cable that was getting hot. Now it does not get hot but relay gets very hot after about a 1/4 mile and will not make contact till I sit and let it cool for a couple minutes. If I keep on the throttle without letting off so the solenoid does not open it will stay engaged. Although seems the solenoid will burn up.

scottyb

You can try replacing just the solenoid. It is most likely you will be replacing the controller as JB said sooner or later so get a solenoid that will be compatible with an appropriate size Alltrax control. I suggest the SW180 or similar 200 amp solenoid.

Twizted

Well this is new solenoid I just put in to try to solve the issue. It's rated higher than stock at 150 amp, why would I have same issue. Cart is all stock as it has been for 6 years. Not planning on changing that as it is my elderly parents.