Topic Sponsor
2004 - 2008 Ford F150 General discussion on the 2004 - 2008 Ford F150 truck.

Shudder between 40-50MPH

Thread Tools
 
Search this Thread
 
Old 06-06-2016, 09:30 PM
  #11  
Junior Member
Thread Starter
 
mdickson391's Avatar
 
Join Date: May 2016
Location: Erie PA
Posts: 28
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by nrivera04
Do you know when the plugs were changed or how many miles are on your current set?

I'm thinking either bad plug or a coil.
I replaced plugs and coils. Runs like a charm now! I will not be trusting the service record I was provided
Old 06-07-2016, 09:14 AM
  #12  
Senior Member
 
nrivera04's Avatar
 
Join Date: Apr 2015
Location: MS Gulf Coast
Posts: 1,794
Received 268 Likes on 247 Posts
Default

Originally Posted by mdickson391
I replaced plugs and coils. Runs like a charm now! I will not be trusting the service record I was provided
I wouldn't discredit your whole service record based on one misfire. Things happen... Sometimes a plug gets broken on install and doesn't start acting up till a few miles down the road, coils fail over time, etc.

Glad you got it figured out and are back on the road!
Old 06-08-2016, 08:06 AM
  #13  
Senior Member
 
iowagooser44's Avatar
 
Join Date: Apr 2013
Location: Fairfax Iowa
Posts: 202
Received 9 Likes on 7 Posts
Default

I had same problem and new COPs fixed
Old 06-08-2016, 12:16 PM
  #14  
Junior Member
 
OneFumbDuck's Avatar
 
Join Date: Jul 2015
Location: Canyon Lake TX
Posts: 21
Received 0 Likes on 0 Posts
Default

Originally Posted by MoDy150
I had the same problem.

I replaced the foam gasket around the air filter tray and the issue went away.


How do you know which way it goes? And if its backards, will misfire worse?



Quick Reply: Shudder between 40-50MPH



All times are GMT -4. The time now is 06:40 AM.