Engine Sputtering
09-02-2009, 03:58 PM
#1
2nd Gear Member
Thread Starter
Join Date: Mar 2008
Posts: 295
Engine Sputtering
My engine at high speeds around 75-80 has been sputtering out really bad and wont stop as i keep accelerating from there at WOT. i feel a loss of power and everything. its not missing its just sputtering like its not getting enough gas. I put injector cleaner in her n changed the fuel filter. Any other ideas? i also have a header bolt missing could this be the culprit?
09-02-2009, 06:28 PM
#3
4th Gear Member
Join Date: Feb 2008
Location: NJ
Posts: 1,496
My friends F150 does this too.....I don't know the cause but would be interested in finding out. His dealer hasn't been able to diagnose the problem hopefully you find one. I'll post information if my friend finds anything more out about his problem
09-02-2009, 07:31 PM
#6
5th Gear Member
Join Date: Dec 2006
Location: Redding, CA
Posts: 4,552
Could be any number of things. A data log sent to a tuner would solve the issue.
I have had this happen from a bad plug, tuning, leak in intake tubing and bad gas.
Bad gas seemed to be the biggest culprit. Run your tank almost dry and then fill it back up. It took me three tanks to get rid of one tank of bad gas.
I have had this happen from a bad plug, tuning, leak in intake tubing and bad gas.
Bad gas seemed to be the biggest culprit. Run your tank almost dry and then fill it back up. It took me three tanks to get rid of one tank of bad gas.
09-02-2009, 07:57 PM
#7
4th Gear Member
Join Date: Nov 2008
Location: California
Posts: 1,495
"Bad gas" often means that there is water in the fuel. You could try some Iso-Heet to absorb any water. The engine will probably continue to sputter for a while as the absorbed water works its way through the fuel system.
09-02-2009, 10:17 PM
#10
4th Gear Member
Join Date: Apr 2008
Location: North Idaho
Posts: 1,440
I would vote for fuel filter or a bad injector...I bet on a tuner...you will see pressure inconsistant on the injectors as the fuel need is greater...as far as pulling the plugs...being an 05 with 64000 miles I bet those plugs are carboned in really bad...I would have the dealer pull them.