Question about 1991 Ford Ranger Supercab
Hello, a quick way to check the alternator is to unplug the battery while the truck is running.
If it shuts off the alternator is junk. if it remains running then the alternator is doing its job.
The tach sounds like it could be a totally different issue but i had a 92 that did the same thing till i changed the alternator,
Have you checked the belts make sure it's in good repair.
Posted on Nov 08, 2010
Testimonial: "changed the alt.,a new mass air flow sen. but when idling , sometimes it still dont act right"
It sounds like the alternator is draining the battery. I would remove the alternator and have it tested at a local parts store. I would also charge the battery and have it tested too.
Posted on Nov 07, 2010
Testimonial: "good advice, thank you. but what about the tach? see the comments i posted afterwards"
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:
Feb 24, 2014 | Cars & Trucks
Mar 13, 2013 | 2003 Ford Escape
Jul 26, 2012 | 1988 Ford Ranger
Oct 24, 2011 | 1998 Ford Escort
Oct 17, 2011 | 2001 Ford Windstar
Jun 11, 2009 | 2000 Ford Ranger SuperCab
Jun 11, 2008 | 1991 Ford Ranger Supercab
178 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: