Another parasitic drain story... - Ranger-Forums - The Ultimate Ford Ranger Resource


General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-20-2014
Member
Thread Starter
 
Join Date: Apr 2014
Location: Point Pleasant, WV
Posts: 1
Another parasitic drain story...

1987 Ford Ranger XLT 4cyl gas, manual transmission. I've owned the truck for several months and the battery has gone dead if I let it set for about 48 hours. It had an OLD battery and I assumed that was the problem.

I bought a new battery last week and the problem was worse if anything, so I began testing. The drain with everything off and my stereo unhooked was about .40 milliamps. I spent hours pulling fuses, light bulbs and disconnecting frozen wiring harness connectors with no results.

Eventually, I disconnected the fusible links on the battery side of the solenoid. That reduced the drain to 0. I Isolated the correct link which had two wires: one went to the throttle body and had been up against the manifold at some time and was missing some insulation. I replaced the wire, but still had the drain. The other wire was yellow and I traced it down to the computer wiring harness. This was definitely the problem wire. The truck wouldn't start without it connected. Until I figure out something better or replace the computer, I installed a switch to connect the wire to battery, so I can disconnect it when I park it- like an anti theft switch.

It seem to be running fine that way so far with no more battery drain: .001 milliamps with the memory for my stereo connected. Photo of the offending wire: http://i.imgur.com/YZcbfoC.jpg
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Parasitic Battery Draw & Dash lights Out westonreed General Technical & Electrical 0 03-08-2014 03:37 PM
testing parasitic draw without a meter dcazdavi General Technical & Electrical 13 02-15-2014 10:06 AM
Parasitic Drain Instrument Cluster BadCJ7 General Technical & Electrical 0 10-20-2013 09:04 PM
Another Early Christmas Story 05RangerXLT Wheels & Tires Semi-Tech 18 07-26-2006 02:34 PM
Night from hell.....Truck dead *long story* FLPanther General Ford Ranger Discussion 12 03-14-2005 06:41 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 04:53 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.