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Electric Club Car Electric DS, and Precedent golf cars |
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05-10-2014, 08:10 AM | #11 | |
Gone Wild
Join Date: Aug 2013
Location: Michigan
Posts: 508
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Re: 2010 precedent surging
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05-10-2014, 08:54 AM | #12 |
Not Yet Wild
Join Date: Oct 2013
Location: Wilmington, NC
Posts: 8
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Re: 2010 precedent surging
ok, i'll try it today and provide feedback.
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05-10-2014, 09:18 AM | #13 |
Gone Wild
Join Date: Feb 2012
Location: Indio, CA The Desert!
Posts: 1,263
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Re: 2010 precedent surging
Sounds like an mcor problem.
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05-10-2014, 10:30 AM | #14 |
Not Yet Wild
Join Date: Oct 2013
Location: Wilmington, NC
Posts: 8
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Re: 2010 precedent surging
if it's the MCOR, how do i test it to be sure?
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05-10-2014, 02:17 PM | #15 |
Gone Wild
Join Date: Aug 2013
Location: Michigan
Posts: 508
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Re: 2010 precedent surging
Typically a Mcor problem you have to pump the gas pedal in order to pull voltage again, it might be a mcor problem but the systems he's having doesn't sound like a Mcor, but I could be wrong.
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05-11-2014, 05:44 AM | #16 |
......................
Join Date: Apr 2009
Location: FT Lauderdale FL.
Posts: 16,416
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Re: 2010 precedent surging
http://www.buggiesgonewild.com/attac...ng.5021715.pdf Procedure to test an MCOR with a Volt Meter MCOR Voltage Test without the IQDM Handset 1. Place chocks at the front wheels and lift the rear of the vehicle with a chain hoist or floor jack. Position jack stands under the frame crossmember between the spring mount and side stringer, just forward of each rear wheel. See WARNING Lift only one end... in General Warning, Section 10, Page 10-1. See following NOTE. NOTE: The key switch should be placed in the OFF position and left in the OFF position for the duration of this test. 2. With the batteries connected, place Tow/Run switch in RUN. Using a multimeter set to 200 volts DC, place red (+) probe on battery no. 1 positive post and place black () probe (with insulation-piercing probe) on the purple/white wire (1) at a point close to the three-pin connector at the MCOR (Figure 11-11). The reading should be approximately 48-50 volts (full battery voltage). Figure 11-11 Test MCOR: Purple/White Wire (+) ELECTRICAL SYSTEM AND TESTING Troubleshooting 2008 IQ Plus Electric Vehicle Maintenance and Service Supplement Page 11-19 11 3. If reading is zero volts, check the purple/white wire continuity from the three-pin connector at the MCOR to the 24-pin connector at the speed controller. Check terminal positions in three-pin connector at the MCOR and the 24-pin connector. If all of the continuity readings are correct and the connectors are wired correctly, replace the speed controller. 4. With multimeter set to 20 volts DC, place the black () probe on battery no. 8 negative post and the red (+) probe (with insulation-piercing probe) on the white wire (2) at a point close to the three-pin connector at the MCOR (Figure 11-12). The reading should be approximately 4.65 volts. 5. If reading is zero volts, check the white wire continuity from the three-pin connector at the MCOR to the 24-pin connector at the speed controller. Check terminal positions in three-pin connector at the MCOR and the 24-pin connector. If all of the continuity readings are correct and the connectors are wired correctly, replace the speed controller. 6. With multimeter set to 20 volts DC, place the black () probe on battery no. 8 negative post and the red (+) probe (with insulation-piercing probe) on the yellow wire (3) at a point close to three-pin connector at the MCOR (Figure 11-13). The reading should be approximately 0.32 volts with the pedal up. Slowly press the accelerator pedal and note the readings on the multimeter. As the pedal is pressed, the reading should increase until it reaches 4.65 volts when the pedal is fully pressed. 7. If reading does not increase as the pedal is pressed, replace the MCOR. 8. If the reading is not approximately 4.60 volts with the pedal fully pressed, the vehicle will not operate at rated top speed. Check the MCOR resistance. 8.1. Disconnect the battery cables as instructed. See WARNING To avoid unintentionally start- Figure 11-12 Test MCOR: White Wire (+) Figure 11-13 Test MCOR: Yellow Wire (+) Passenger Side Frame Rail 3 ELECTRICAL SYSTEM AND TESTING Troubleshooting Page 11-20 2008 IQ Plus Electric Vehicle Maintenance and Service Supplement 11 ing... in General Warning, Section 10, Page 10-1. 8.2. Disconnect the 24-pin connector at the speed controller. 8.3. Set a multimeter to 20k ohms. Connect the red (+) probe of the multimeter to the yellow wire at the MCOR three-pin connector with an insulation piercing probe. Connect black () probe to the purple/ white wire with an insulation-piercing probe. 8.4. With the accelerator pedal fully up (not pressed), the multimeter should read approximately 1k ohms. 8.5. Slowly press the accelerator pedal while monitoring the multimeter. The resistance should rise as the pedal is pressed. When the pedal is all the way to the floor, the multimeter should indicate between 5.67k ohms and 7.43k ohms. 8.6. Using a multimeter set for 20k ohms, connect the red (+) probe of the multimeter to the yellow wire at the MCOR three-pin connector with an insulation piercing probe. Connect black () probe to the white wire with an insulation-piercing probe. 8.7. With the accelerator pedal fully up (not pressed), the multimeter should indicate between 5.67k ohms and 7.43k ohms. 8.8. Slowly press the accelerator pedal while monitoring the multimeter. The resistance should drop as the pedal is pressed. When the pedal is all the way to the floor, the multimeter should indicate approximately 1k ohms. 8.9. If the MCOR does not operate as described, replace the MCOR. http://www.buggiesgonewild.com/elect...tml#post562143 |
05-17-2014, 11:32 AM | #17 |
Not Yet Wild
Join Date: Oct 2013
Location: Wilmington, NC
Posts: 8
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Re: 2010 precedent surging
Hey guys, the MCOR was the issue. The MCOR 2 in the cart was replaced with an MCOR 4 and the cart is back to operating normal. Thanks for all the tips and advice!
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05-17-2014, 03:43 PM | #18 |
Gone Wild
Join Date: Aug 2013
Location: Michigan
Posts: 508
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Re: 2010 precedent surging
That's cool that it wasn't batteries or a controller. That's strange on how it was acting for you
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05-17-2014, 05:38 PM | #19 | |
Gone Wild
Join Date: Feb 2011
Location: Chattanooga TN
Posts: 2,105
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Re: 2010 precedent surging
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