Having problems with your 1999 Ford F150 Regular Cab ?

I have a 1999 F150 4x4 automatic, battery light just started coming on, it has a new battery, 4-5 month old. I check with multimeter on positive and negative on battery and it did not increase the reading while truck is running. I believe it is the alternator but not positive. Do you think it is the alternator, are there other possible things that I should check first to make sure it is the alternator?

Posted / edited by AnonymousUser on : 10-12-2018

Answers :

The Alternator field fuse, and the harness for this to the alternator.

In the '99 MY this was moved back to the fuse block, engine compartment fuse # 11.

The other is the wiring harness for the alternator field and charge circuit plugged into the alternator.
This is the connector on the alternator, and can be prone to a broken orange wire ( from the fuse above ) or a dirty connector causing issues.
87c2738.jpg

The harness might need a through check for damage,
9987728.jpg

Those are the things that I would start with, easy check. IF they check good, next step is to have the alternator bench tested
Repair Help & Product Troubleshooting for 1999 Ford F150 Regular Cab

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Loading ...

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || carrestorationshop.com || Terms of Use || Contact || Privacy Policy
Load time: 0.0056 seconds