1999 Expedition V8 5.4L
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1999 Ford Expedition Question: What can I do??? Sounds like I have Sticky Valves
Answer #1arturo08 April 09, 2013, 23:51Master
review when last tuned. it may be due.
rec. fuel system clean. ethanol treatment to one tank premium fuel. ethanol blend in fuel causes build up in fuel system, combustion chambers, exhaust system and causes increased wear to spark plugs. remedy will help sticky valves. result will take drive time.
Answer #2pushrod April 10, 2013, 02:09Master
Pcv system vacuum circuit leaks are common!