Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150
Sign in using an external account
Register Forgot Password?


2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine
SPONSORED BY:
Click HereAdvertisement

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-11-2013, 10:57 AM
frank4570 frank4570 is offline
New User
 
Join Date: May 2013
Posts: 7
frank4570 is starting off with a positive reputation.
05 f150 electrical problem. Starter.

I went to drive to town the other day and noticed my speakers were not putting out any sound, this happened once before, also when it had been raining a lot, but it fixed itself. But I continued to town.
When I got to town I turned off the truck and heard a loud bang like the starter hitting the flywheel.
So I went to start the truck again to listen to it. But when the key hit the accessory position, the truck started, that's before the key got to the start position.
I turned the truck off, BANG.
Turned the key to the accessory position, truck started. I could not hear anything wrong while the truck was running.
I disconnected the battery for a while and gave the terminals a good cleaning, it didn't change anything.
I left the truck in that parking spot for a day. It's a dry place. The next day the truck started properly, but the speakers still didn't work.
The next day the speakers started working again, but now it has a check engine light.

Any ideas?
Thanks!
Reply With Quote
  #2  
Old 05-11-2013, 12:27 PM
Nalb1221's Avatar
Nalb1221 Nalb1221 is offline
Junior User
 
Join Date: Feb 2013
Location: Manahawkin, nj
Posts: 76
Nalb1221 is starting off with a positive reputation.
You need a scanner to see what the codes are. Maybe a bad ground. It's hard to tell without more info.
Reply With Quote
  #3  
Old 05-11-2013, 04:07 PM
frank4570 frank4570 is offline
New User
 
Join Date: May 2013
Posts: 7
frank4570 is starting off with a positive reputation.
Quote:
Originally Posted by Nalb1221 View Post
You need a scanner to see what the codes are. Maybe a bad ground. It's hard to tell without more info.
If I take it to a mechanic and find out what the codes are, would that work? Does it make more economic sense to just buy a scanner?
Reply With Quote
  #4  
Old 05-11-2013, 04:41 PM
Nalb1221's Avatar
Nalb1221 Nalb1221 is offline
Junior User
 
Join Date: Feb 2013
Location: Manahawkin, nj
Posts: 76
Nalb1221 is starting off with a positive reputation.
If I were you I would just buy a scanner they are relatively cheap. I have a cheap one and I have an edge programmer which is a scanner also. But yeah we need to know what codes to help you diagnose the problem.
Reply With Quote
  #5  
Old 05-11-2013, 07:21 PM
jr105 jr105 is offline
Senior User
 
Join Date: Jul 2005
Posts: 258
jr105 is starting off with a positive reputation.
Most auto parts chains will put a scanner on your vehicle and read the codes for free.
Reply With Quote
  #6  
Old 05-14-2013, 07:22 PM
frank4570 frank4570 is offline
New User
 
Join Date: May 2013
Posts: 7
frank4570 is starting off with a positive reputation.
p0506

IAC curcuit condition or idle speed higher/lower than expected.

ECM has detected that the IACcounts are higher/lower than expected. the engine speed is not in expected range.


possible causes
vacuum leak on engine
dirty throttle body
IAC motor defective
poor electrical connection to the IAC valve

The guy at the auto parts place didn't think this made much sense.
Reply With Quote
  #7  
Old 05-20-2013, 08:37 AM
frank4570 frank4570 is offline
New User
 
Join Date: May 2013
Posts: 7
frank4570 is starting off with a positive reputation.
And now the check engine light is gone.
Reply With Quote
  #8  
Old 05-21-2013, 12:00 AM
ford2go's Avatar
ford2go ford2go is offline
Posting Guru
 
Join Date: Apr 2003
Location: Frequently frozen MN
Posts: 2,469
ford2go has much to be proud offord2go has much to be proud offord2go has much to be proud offord2go has much to be proud offord2go has much to be proud offord2go has much to be proud offord2go has much to be proud offord2go has much to be proud offord2go has much to be proud of
This really sounds like a wiring or grounding problem -- more than likely grounding -- in my opinion (not to be taken as expert).

When a ground is poor, you can get mysterious issues like yours. For instance, if one part of your truck is properly grounded, and another part isn't, the voltage levels between the two will be incorrect. How much they vary depends on how poor the ground is.

Many local libraries ( around here, and probably elsewhere), have online versions of alldata. Usually, alldata will have a section showing location of all of the vehicle grounds. You will likely have to look this up in the library itself.

Also, you can poke around the grounds you know about with a meter. See if the voltage varies more than a few tenths of a volt from one end to the other -- or to the frame when you turn on various electrical loads.

Good Luck, things like this can be frustrating because they're often intermittent.

hj
__________________
ford2go (hj)
No fords left except in my heart
Reply With Quote
  #9  
Old 06-28-2013, 04:10 PM
frank4570 frank4570 is offline
New User
 
Join Date: May 2013
Posts: 7
frank4570 is starting off with a positive reputation.
An update. And I'm going to look for this specific problem, maybe start a new thread.

After the last heavy rains, the truck wouldn't start or anything at all. Battery read 7 volts. I looked for a short, and found one. Followed that through the firewall to the fuse box under passenger side dash. Where I isolated the problem *in* the fuse box, which turned out to have a bunch of water in it. I'm no expert. But I'm pretty sure the fuse box inside the truck is not supposed to contain rain water. After I dry it out, I just need to find the leak.
Reply With Quote
Old 06-28-2013, 04:10 PM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1998 ranger 4x4 wierd electrical habits now it wont start DieselMechanic Ranger & B-Series 8 01-10-2014 09:43 PM
1984 F250 fuel pump problems????? deputydog03 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 53 11-05-2013 03:41 PM
engine light on key off..? Nick_lebbad 1987 - 1996 F150 & Larger F-Series Trucks 2 10-06-2012 07:11 PM
2003 F250 Starter/wiring issues HELP alphonse1983 Electrical Systems/Wiring 3 11-27-2011 10:33 PM
99 Won't crank... and the radio died??? sign_man 1997 - 2003 F150 3 07-11-2011 08:41 PM



All times are GMT -5. The time now is 05:00 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup