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Unread 12-30-2014, 11:39 AM   #1
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Default pedal to floor, cart slows and stops

Got a '93 DS in the shop today. The last time it was here, the guy left it for about 8 months. The cart is definitely used for hunting and driving through the woods. It's got a brand new Alltrax controller 36V platform, and the v-glide switch assembly was replaced just over a year ago before I started working here, along with the resistors in the v-glide. Also has a brand new solenoid. Nothing else is "upgraded". It seems to accelerate fine until the pedal reaches the floor (customer also complained sometimes he'd hear the famous solenoid click, but no go). Once the pedal reaches the floor, the cart quickly decelerates, and comes to a stop. if I let off and then get back on the accelerator, it takes off. I haven't had it duplicate the "no go" problem yet. So, long story short, this cart has been a headache, so I'm turning to you guys for answers. Any suggestions on where to start really? Because I'm stumped.
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Unread 12-30-2014, 12:01 PM   #2
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Default Re: pedal to floor, cart slows and stops

The last resistor in the VGilde failed?
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Unread 12-30-2014, 12:49 PM   #3
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Default Re: pedal to floor, cart slows and stops

Sounds like an open short or loose end of the last resistor. Should be 1100 ohms

Last edited by tag50; 12-30-2014 at 12:57 PM.. Reason: added info
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Unread 12-30-2014, 12:52 PM   #4
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Default Re: pedal to floor, cart slows and stops

Quote:
Originally Posted by CCFanatic View Post
The last resistor in the VGilde failed?
Any idea how much resistance I should get from it with the meter? When I checked it, I'm pretty sure it was around 1100 ohms. I also noticed the head negative battery post/cable got rather warm after driving the cart around.
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Unread 12-30-2014, 01:00 PM   #5
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Default Re: pedal to floor, cart slows and stops

Quote:
Originally Posted by tag50 View Post
Sounds like an open short or loose end of the last resistor. Should be 1100 ohms
What are the steps to tracking down an open short? Just looking for a break in a wire somewhere?
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Unread 12-30-2014, 01:03 PM   #6
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Default Re: pedal to floor, cart slows and stops

Quote:
Originally Posted by GreezMunky View Post
Any idea how much resistance I should get from it with the meter? When I checked it, I'm pretty sure it was around 1100 ohms. I also noticed the head negative battery post/cable got rather warm after driving the cart around.
That is most likely Your problem. Pull on that cable and every high amperage cable, You have a poor connection in one of those cables and the controller voltage is dropping due to voltage drop in the bad connection.
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Unread 12-30-2014, 01:06 PM   #7
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Default Re: pedal to floor, cart slows and stops

Should be 1100ohms
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Unread 12-30-2014, 01:14 PM   #8
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Default Re: pedal to floor, cart slows and stops

Range of V-glide, pedal up 0-50 ohms, pedal down 4500-5500 ohms.

For the warm cable, I would disconnect both ends and do the "twist & pull" while watching ohm meter.
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Unread 12-30-2014, 01:17 PM   #9
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Default Re: pedal to floor, cart slows and stops

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Originally Posted by Sergio View Post
That is most likely Your problem. Pull on that cable and every high amperage cable, You have a poor connection in one of those cables and the controller voltage is dropping due to voltage drop in the bad connection.
Just pull on it? It's got one of those stupid looking fuses between the battery post, and the cable. and it does seem a little frail. That would probly be why the post got so hot and started to melt the battery plastic.
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Unread 12-30-2014, 01:22 PM   #10
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Default Re: pedal to floor, cart slows and stops

If I remove that fuse, it voids the warranty on the controller. should I take it off anyways? I've never had anything but problems with them.
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