Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Thread Tools Display Modes
Old 01-15-2018, 01:34 PM   #11
Senior Member
Join Date: Jan 2011
Location: Reynoldsburg, Ohio
Posts: 3,671
Send a message via Yahoo to JWA
Originally Posted by boywonder View Post
What year did the change to "newer style" heads occur??
Sometime in model year 2000, the newer heads can be identified by a PI mark cast into the head along the exhaust header side. That in and of itself isn't too significant regarding ejected spark plugs.

Originally Posted by longboardguy View Post

My early 2002 v10 with original plugs blew 1 plug out at 120k. Faint ticking sound first, then engine warning light came, then it blew.
Ford Truck Enthusiasts is a great site all around for most things Ford related. I once contributed quite a bit there.

The linked article is great but I'd add its not definitive as to what exactly causes the ejections. My own conclusion/opinion is its related more to how plugs were initially installed.

The other issue how long plugs are left unchanged---too many believe this nonsense they're good for 100K or more. That might be as it relates to plugs still being viable for their job but after that interval we're having problems with corrosion and/or rust seeping into the threads making removal a nightmare.

The 50K interval has worked for me so far without any problems, knock on wood.

The faint ticking begins just after the plug becomes loose in its bore, sometimes sounds just like an exhaust stud has broken away.

JWA is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 04:22 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2023, vBulletin Solutions, Inc.