2009 Precedant Slow (9mph) max speed

Foxyuser

Hi all,

I am a newer owner of the above model cart. Last summer I made the big mistake of storing the cart plugged in without having the ability to monitor the battery water levels. After attempting to recuperate the batteries (4x12V). the car never was able to travel more than about 9 mph (as shown on my GPS) compared to last year when it was much faster (maybe 15MPH).

Since the old batteries were showing signs of bulging and were already 4 years old, I have changed out the batteries for new Trojans but the speed problem still exists. I have tried resetting the OBC but I remain unsure if that was successful or not as the process described using the reverse buzzer as a bleed off did not result in the buzzer sounding off as expected.

Any ideas as where to go next to resolve this issue would be appreciated....

Foxy


On edit: The serial number of the cart indicates it uses the "Excel" system but how does one determine if the card uses the MCOR or TPS throttle system.

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

mrgolf

Sounds like a bad speed sensor. Mounted on end of motor.

jakesnake27

TahoeDawgZ71

I agree. Speed sensor. Don't buy the cheap Chinese one. Get a factory sensor or you'll be changing it again in a few weeks.

Foxyuser

Thanks for all those replies!!!

Does anyone have an answer to this part: "The serial number of the cart indicates it uses the "Excel" system but how does one determine if the cart uses the MCOR or TPS throttle system. "

Thanks again!!

jakesnake27

TahoeDawgZ71

You'll need an AM293001 MCOR4 conversion kit if it's already been converted to an MCOR2. If it's still got the TPS on it you'll need the AM293001 kit to convert to the MCOR4 plus the Excel jumper adapter to make the MCOR4 plug into the TPS wire harness, 103682701 is the part number for the adapter.

Post pics of your throttle device if you need help.

Foxyuser

I appear to have the Gen2 throttle assembly judging by the pictures provided by Tahoedawg in his other thread. (Thanks!!!) Where are the MCOR or TPS system parts physically located on my unit?. Possibly in that box located under the floorboards and just in front of the the pedals??

My unit appears to back up very quickly compared to going forward, although I have not yet tried measuring the speed in reverse as I did in forward. (9 MPH max.) May be my wife's imagination though!!!

Thanks again for helping out a confused newbie!!

TahoeDawgZ71

A TPS doesn't have a micro-switch in it. When you press the accelerator listen carefully for a "Click" as soon as you start to give it throttle. You can do this with the key off and in neutral. If it clicks, you've got an MCOR already. If it doesn't click, you've still got the TPS. You'd need conversion kit AM293001 either way, but if it has a TPS you'll also need the 103682701 adapter in addition to the conversion kit.

Foxyuser

Thank you for that little trick. I do get a click under the the conditions you described... (no key, neutral etc.) It also gave away the apparent physical location of the MCOR as being in the box skillfully hidden under the floorboard/mat in front of the pedals as I suspected. Never noticed it when I was replacing the brake light switch in there last year.

Foxy