Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Powermaster One wire question

Thread Tools
 
Search this Thread
 
Old Feb 21, 2015 | 08:22 PM
  #1  
sony420's Avatar
sony420
Thread Starter
|
New User
Joined: Mar 2006
Posts: 24
Likes: 0
Powermaster One wire question

About a month ago I installed a Powermaster one wire alternator. After some help here I got it all wired up and working fine...so I thought. What I knew before I started was that the blower resistor was shot and only worked in high. no big deal. well I finally got around to replacing that, and now its on all the time, the fan speed selections all work, but the blower works with the key on or off. I hooked the large orange wire in the engine compartment to the hot side of the starter relay. I know now that this is wrong and it leaves it hot all the time. My question is were to run this orange wire (10-12 gauge) so it can be activated when the key is on only.


Any suggestions? I don't think it would be wise to splice it in to something else as its a large wire and im sure it draws decent power....help please?!!!


thanks guys!
 
Reply
Old Feb 21, 2015 | 10:26 PM
  #2  
sony420's Avatar
sony420
Thread Starter
|
New User
Joined: Mar 2006
Posts: 24
Likes: 0
After researching further, I believe I do have the fat orange wire hooked up properly to the positive side of the starter relay, so with that, what would I look at next to find out why the blower motor isn't turning off, key on or not...bad ground? and if so were?...help please!..thank you!
 
Reply
Old Feb 21, 2015 | 11:02 PM
  #3  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 83
From: NorCal
That orange wire is supposed to plug into a female bullet plug which leads back to the fuse box and a high amp fuse. The bullet connector should be dangling above the motor on that harness running along the top of the firewall.

Have you even looked at a wiring diagram?

Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting
 
Reply
Old Feb 22, 2015 | 08:01 PM
  #4  
sony420's Avatar
sony420
Thread Starter
|
New User
Joined: Mar 2006
Posts: 24
Likes: 0
Red face

I hooked the orange wire back to the starter relay...pulled the blower relay (not the resistor) which is directly under the glove box, and smoothed out the ground area, and reinstalled. presto, works like it should...so one of two things...the ground was bad....or by messing with it, I dislodged a stuck relay. Thanks for the responses!!!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Tinker52
Cooling, Heating, Ventilation & A/C
11
Oct 2, 2018 12:12 PM
ryank59701
1967 - 1972 F-100 & Larger F-Series Trucks
27
Nov 17, 2015 12:21 AM
Texas98'F-150
1997 - 2003 F150
1
Aug 22, 2011 05:12 PM
tdpower
1999 - 2003 7.3L Power Stroke Diesel
3
Dec 20, 2010 06:37 PM
firstimer
Cooling, Heating, Ventilation & A/C
7
Jan 8, 2003 10:00 AM




All times are GMT -5. The time now is 01:30 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE