How to turn off Check Engine Light - F150online Forums



How to turn off Check Engine Light

Reply
 
 
  #1  
Old 03-16-2007, 11:18 AM
Member
Thread Starter
 
Join Date: Feb 2007
Posts: 40
How to turn off Check Engine Light

I changed one of my COPs last night. It was coil #5 and now my engine runs great. However, the check engine light is still on. How can I turn it off?

Thanks,
John
Reply With Quote
  #2  
Old 03-16-2007, 11:19 AM
Suspended
 
Join Date: Nov 2004
Location: NW Indiana
Posts: 1,941
take it to any autozone. They will do it for free
Reply With Quote
  #3  
Old 03-16-2007, 12:04 PM
Senior Member
 
Join Date: Sep 2003
Location: WY
Posts: 1,104
If you actually fixed the problem, it should turn itself off. If memory serves me correctly (and it probably doesn't) the local repair shop said to me many years ago you had to have 5 starts and drive at least 40 some-odd miles for the light to clear (or something along those lines).


Or, go to Autozone.

Or, go to Harbor Freight on-line and buy a $40 code reader. It'll reset the light.
Reply With Quote
  #4  
Old 03-16-2007, 01:15 PM
Senior Member
 
Join Date: Dec 2006
Location: Reisterstown, MD
Posts: 438
unhook your battery for a while, That should clear the code.
Reply With Quote
  #5  
Old 03-16-2007, 02:15 PM
Technical Article Contributor
 
Join Date: Oct 2005
Location: MI
Posts: 25,637
You shouldn't have a light if you followed the correct procedure with a COP changout.

Step 1 - Disconnect Neg terminal on battery..
Reply With Quote
  #6  
Old 03-16-2007, 02:32 PM
Senior Member
 
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Posts: 5,932
If you unhook your battery now, you'll have to reprorogram all your radio stations.

Just look in your owner's manual for the fuse layout. Locate the fuse for "PCM". This is usually a 5A or so fuse. Pull it and wait 15 minutes. Reinstall it and allow your PCM to relearn parameters.

exactly which fuse varies by model year which you failed to provid. For example, on a 97, it's in the underhood mini-fuse box. A 2000 uses F2 in the underdash fuse panel, etc.....

Anyway, just look in your owner's manual.

Steve
Reply With Quote
  #7  
Old 03-16-2007, 02:42 PM
Senior Member
 
Join Date: Mar 2005
Location: Louisiana
Posts: 784
Fix it
Reply With Quote
 
 
Reply

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Vanwilder01
2015 - 2016 F-150
31
08-04-2016 04:07 PM
Chalk
V8 Engines
27
03-11-2016 02:05 PM
kingjrza
Electrical Systems
1
07-28-2015 05:12 PM
Jfreas1
V8 Engines
1
07-19-2015 12:34 AM
Leowis1
2009 - 2014 F-150
6
07-18-2015 01:09 AM


Thread Tools
Search this Thread

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 On
Refbacks are Off



All times are GMT -4. The time now is 08:41 AM.