08 4.6l misfire

Thread Tools
 
Search this Thread
 
  #1  
Old 11-29-2009, 06:52 PM
d2gprerunner's Avatar
Member
Thread Starter
Join Date: Oct 2008
Location: Riverside, CA
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
08 4.6l misfire

last night my truck started missing violently at a stop light, it threw a code (cyl 3 misfire). i got it home disconnected the battery and reconnected it this morning, now it idles fine in park and Neutral but once its under load it wont rev out over 4k and takes forever to get there. im pretty sure its the coil pack that went bad but after looking for a replacement all i can find is the autozone ones and im pretty sure this isnt covered under warranty even tho the truck only has 24k miles on it.

any recommendations of a good replacement packs and plugs. it has the stock exhaust and intake still.
 
  #2  
Old 11-29-2009, 08:26 PM
Matts ford's Avatar
Senior Member
Join Date: Nov 2007
Location: whaleyville, MD
Posts: 3,271
Likes: 0
Received 0 Likes on 0 Posts
take it to the dealer, should be covered under warranty.
 

Last edited by Matts ford; 11-29-2009 at 08:28 PM.
  #3  
Old 11-29-2009, 08:33 PM
no-mams's Avatar
Senior Member
Join Date: Sep 2008
Location: Texas
Posts: 125
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Matts ford
take it to the dealer, should be covered under warranty.
Yes! swapping coils it also the easiest way to find if you coils are bad.
 
  #4  
Old 11-29-2009, 08:34 PM
Fordfanatic101's Avatar
Senior Member
Join Date: Jul 2008
Location: San Diego CA
Posts: 640
Likes: 0
Received 2 Likes on 2 Posts
it is should be covered under warranty you have a 36,000 mile bumper to bumper
and a 60,000 mile Powertrain warranty
 
  #5  
Old 11-30-2009, 10:20 AM
glc's Avatar
glc
glc is offline
Senior Member
Join Date: Dec 2006
Location: Joplin MO
Posts: 43,205
Received 763 Likes on 706 Posts
Being that the factory recommended plug change interval is 100k and there is no recommended change interval for the COP's, it should definitely be covered under warranty.

If you want to change them yourself anyway, use OEM Motorcraft plugs and DG508 coils from Global Automotive or Uneek Supply on Ebay.
 
  #6  
Old 11-30-2009, 11:35 AM
d2gprerunner's Avatar
Member
Thread Starter
Join Date: Oct 2008
Location: Riverside, CA
Posts: 30
Likes: 0
Received 0 Likes on 0 Posts
thanks, i wasnt sure and was dreading taking it in if it was on my dime after finding the ford cop priced out at 129 a piece not including the 104$ and hour for labor up here.
 



Quick Reply: 08 4.6l misfire



All times are GMT -4. The time now is 04:45 AM.