2007 Precedent issue HELP!!!

epinoldarun

2007 precedent electric, 4-12v stock. I had the "clutch slipping" symptoms, checked all 4 batteries with hydrometer and load tester,(all ok) replaced the MCOR and speed sensor and I still have the same slipping issue..Any suggestions appreciated.

BGW

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erict

What are the voltage reading of each battery and rest and under a load? How old are the batteries?

erict

Read this. Battery issues can cause funny symptoms.

http://www.buggiesgonewild.com/elect...or-couple.html

epinoldarun

The batteries are 3 years old, voltage at rest is
bat a 13.2
bat b 12.9
bat c 13.1
bat d 13.0
I haven't done a voltage under load. After reading the mentioned thread mine does what his was doing, up in the air its fine but on the ground it slips or shutters.......I'll attempt to get a voltage reading while driving and post results. Thanks for the quick replies.

epinoldarun

50.1 volts before driving, at full speed 45.9 volts. returned to garage after about a mile trip and resting is 49.9 volts. I will note that while speeding up my volt meter was going crazy with readings anywhere from 40 volts to 130 volts....weird.

shadowman

sounds like its time for batteries, 45 volts under load while driving is dead............................

erict

Put fresh batteries in your meter and try again. My meter had older batteris and it caused it to read higher then normal. When doing a load test you will need to test each battery under load and see if one or more are the culprit. You defiantly have a battery issue.

erict

Tom, I think his meter is giving him wrong readings and his batteries are worse then posted. He is currently only showing a 4.2v drop which Scotty says a voltage drop of 4-5v or less is acceptable under hard acceleration or an up hill run as long as the voltage rises when the load is removed.