Spark Plugs
Thread Starter
|
New User
Joined: Oct 2005
Posts: 19
Likes: 0
Spark Plugs
It's time to change the plugs in my 1998 Explorer,4.0 SOHC. Ford suggests AGRF-22P. Is one type(platinum v/s double platinum v/s single point v/s dual point v/s etc,and brand (Autolite v/s Bosch v/s Champion v/s etc,etc,etc,better than another?
Some vehicles seem to run better on one type rather than another.
You all have always come through,with good responses.
Thanks again,for all your help.
Some vehicles seem to run better on one type rather than another.
You all have always come through,with good responses.
Thanks again,for all your help.
Posting Guru
Joined: May 2002
Posts: 1,574
Likes: 1
From: Phoenix
The single P will give you a platinum tab on the ground electrode and dual P's (PP) gives you platinum on the ground and center electrodes so the platinum faces each other. I use the PP's as they seem to last longer - except the one plug that somehow lost a platinum tab last year.
Brands are a funny topic. Some folks on this forum are adimate about certain brands. I never really noticed a difference. I've used Motorcraft,Champion once I think and right now have Autolites. I would stay away from those Bosch 4 pronged things. Does not make sense to my why those are better. Electricity takes a single path of least resistance. So only 1 ground electrode will ever get the spark for any given coil fire. The other 3 then are left there in the combustion chamber to provide more sharp edges to get hot and start pre-detonation/pinging. My 2 cents.
Brands are a funny topic. Some folks on this forum are adimate about certain brands. I never really noticed a difference. I've used Motorcraft,Champion once I think and right now have Autolites. I would stay away from those Bosch 4 pronged things. Does not make sense to my why those are better. Electricity takes a single path of least resistance. So only 1 ground electrode will ever get the spark for any given coil fire. The other 3 then are left there in the combustion chamber to provide more sharp edges to get hot and start pre-detonation/pinging. My 2 cents.
Posting Guru
Joined: May 2002
Posts: 2,450
Likes: 2
From: Baltimore
I've always used the double platinum Motorcrafts since that's what's recommended. No problems. If this is the first time you are changing them, best way to get to the plugs in through the wheel wells. You also might consider changing the wires while you are in there.
Senior User
Joined: Jan 2005
Posts: 145
Likes: 0
From: New York
As marragtop stated, I would recommend staying with the Motorcraft plugs. I made it to over 140,000 miles on my 97 Explorer XLT SOHC 4.0L, that was one spark plug change every 30,000 miles. I never had problems wit the stock Motorcraft plugs. In my previous 93 Explorer I tried Bosch, no benefit, just costs more than Motorcraft. I have had problems with Autolite and Champion in past, I even had a Autolite plug come apart on me, insulator seperating from plug body.
Senior User
Joined: Jul 2004
Posts: 167
Likes: 0
Just the feel of acceleration, it doesnt seem to accelerate as fast. That, and i raced it against a stock sport trac at a drag strip. I ran at 85mph, and he ran at 65mph at best. But i also have an intake so it wasnt purely the plugs.
Trending Topics
New User
Joined: Oct 2003
Posts: 5
Likes: 0
I have AGRF-22P spark plugs that will need changed soon in my 1997 Ranger w/4.0L .
The problem is that number plug has been dropped. What plug number would replace it ?
Thanks -
The problem is that number plug has been dropped. What plug number would replace it ?
Thanks -
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
New User
Joined: Dec 2007
Posts: 20
Likes: 0
Looks like SP-500 if you want original equivalent Motorcraft.
I've used Autolite "OE style" in all my ford cars/trucks for the past ~15 yrs covering about 300k miles. Those have been turbo 2.3L, n/a 2.0L, 3.4L v8 and 4.6L DOHC.
I've used Autolite "OE style" in all my ford cars/trucks for the past ~15 yrs covering about 300k miles. Those have been turbo 2.3L, n/a 2.0L, 3.4L v8 and 4.6L DOHC.
Thread
Thread Starter
Forum
Replies
Last Post
anger65
Excursion - King of SUVs
33
Jan 28, 2016 09:30 PM
Pocket
1973 - 1979 F-100 & Larger F-Series Trucks
34
Jan 18, 2016 12:00 AM
