Harritwo
Chief Petty Officer
- Joined
- Oct 4, 2011
- Messages
- 586
My 2004 Ford F-150 Supercab Lariat with the 5.4L 3V engine has developed a quirk that I am wondering if anyone can shed some light on. I purchased the truck new in Jan 04 in Aransas Pass, Texas, Moved to Jacksonville Florida and have never really been in a cold environment. Now I am in Seattle Washington, I park on an incline with the front end pointed uphill.
On cold start, the engine surges to 2000+ RPM for a second, then comes down to a normal high idle of 1200 rpm until it warms up. The engine was rebuilt at 156,000 miles, has 187,000 miles on the clock.,
Ford TSB stated to change spark plugs at 60000 miles instead of the 100,000 miles previously published. Ford TSB also states to use 5W-30 motor oil with a filter that has the silicon check anti-siphon valve and that is what has been used in this engine since overhaul.
The current temps are between 45 and 65 degrees F. This issue just appeared after moving to Seattle.
Can anyone shed any light as to the cause of the idle surge on cold start? What to check, what to look for?
George
On cold start, the engine surges to 2000+ RPM for a second, then comes down to a normal high idle of 1200 rpm until it warms up. The engine was rebuilt at 156,000 miles, has 187,000 miles on the clock.,
Ford TSB stated to change spark plugs at 60000 miles instead of the 100,000 miles previously published. Ford TSB also states to use 5W-30 motor oil with a filter that has the silicon check anti-siphon valve and that is what has been used in this engine since overhaul.
The current temps are between 45 and 65 degrees F. This issue just appeared after moving to Seattle.
Can anyone shed any light as to the cause of the idle surge on cold start? What to check, what to look for?
George