New alternator problems
#1
New alternator problems
Help! Just installed a new 185amp DCPower alternator with new cables this past weekend. Before was reading 11.5-12.8 battery volts on the CTS with occasional battery light going down the road. Now, the CTS is reading 15.9 volts and I'm getting the overvoltage error code and all the dash gauges, radio, ac, power windows etc are not working.
Ideas?
Thanks
Ideas?
Thanks
#3
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#7
Here's what I've done so far. Talked to the folks at DC. They said that the pigtail harness should be pushing 12.6 volts with Key On. That checked OK. I disconnected the 0 gauge wire from DC and re-hooked up the OEM wire from the Alternator and Battery. Drove home, 13.6-13.8 volts and no problems going home. Called DC on the way home and talked to I believe Owen about my problem. He stated that on the Powerstrokes he has found out that you have to hook up both the OEM and the new 0 gauge wire. Truck seems to be OK in the driveway pushing 13.6 at idle. Haven't driven the truck on the road last couple of days since it's nice so the motorcycle is the commute ride right now. Will try and take the truck into town for supper and a test run.
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#8
Here's what I've done so far. Talked to the folks at DC. They said that the pigtail harness should be pushing 12.6 volts with Key On. That checked OK. I disconnected the 0 gauge wire from DC and re-hooked up the OEM wire from the Alternator and Battery. Drove home, 13.6-13.8 volts and no problems going home. Called DC on the way home and talked to I believe Owen about my problem. He stated that on the Powerstrokes he has found out that you have to hook up both the OEM and the new 0 gauge wire. Truck seems to be OK in the driveway pushing 13.6 at idle. Haven't driven the truck on the road last couple of days since it's nice so the motorcycle is the commute ride right now. Will try and take the truck into town for supper and a test run.
#9
I would be concerned about boiling the batteries if the charge never went below 14 volts unless you have some heavy duty stereo equip. or something.
#10
It will drop to 13.8 if driving down the highway for any length of time. I do have a stereo system with an amp but I seldom have it turned up loud..... unless it's a sweet day! Most of the driving I do is maybe 30 to 45 minutes worth at a time.
#11
I will vary from 12.8 up to 13.8 once in a while 14. Has done this since new and have never had a problem. Original alt. if your interested.
#12
Wow! Yours has done well if you are on your first alternator and it's still OEM (that's seven years!). I just replaced my second OEM with the DC unit awhile back. I had gone through an OEM 110 amp alternator under warranty and the last one seemed to always stay at 12.8 to 13.2 volts. As soon as I installed the DC it jumped up to 14.7 and of course came down after driving around for a bit. Happy with it so far.
#13
Wow! Yours has done well if you are on your first alternator and it's still OEM (that's seven years!). I just replaced my second OEM with the DC unit awhile back. I had gone through an OEM 110 amp alternator under warranty and the last one seemed to always stay at 12.8 to 13.2 volts. As soon as I installed the DC it jumped up to 14.7 and of course came down after driving around for a bit. Happy with it so far.
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Jon351m
1973 - 1979 F-100 & Larger F-Series Trucks
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01-18-2013 05:49 PM