Question about 1991 Jeep Wrangler
I have replaced it three times .but it will not put out the right voltage why?
I'm just thinking that if your dad is a mechanic, then have him disassemble the alternator and see if he can see anything wrong. Assuming you've wired up the alternator correctly, I am just suspect that there are no brushes in the alternator, or the regulator is bad.
Are you measuring alternator output at the alternator, or at the battery? If at the battery, and you don't have it wired correctly, then you will not see anything but battery voltage. If you check voltage at the alternator output, and it's higher than battery voltage, then there is something wrong in the wiring, either incorrectly wired, or a bad connection somewhere, as the voltage goes to the power distribution block.
Check that there is not a fuse for the alternator in the fuse panel. It may be the original alternator somehow caused a fuse to fail. It could be that there is no field power from the battery feeding the alternator through that circuit.
Posted on Jan 23, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Aug 10, 2014 | Cars & Trucks
Jun 09, 2014 | 1994 Jeep Grand Cherokee
Jan 07, 2014 | 2002 Hyundai Elantra GLS
Mar 06, 2017 | 1990 GMC Sierra
Feb 15, 2011 | 1987 Oldsmobile Cutlass Salon
Nov 18, 2009 | Ford F-150 Cars & Trucks
Aug 27, 2009 | 2000 Mercury Cougar
Mar 09, 2009 | 1994 Ford Ranger Supercab
May 11, 2017 | 2001 Nissan Frontier Crew Cab
Mar 04, 2017 | 1991 Jeep Wrangler
304 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: