Pinging 4.0
Thread Starter
|
New User
Joined: Feb 2002
Posts: 10
Likes: 0
Pinging 4.0
My 92 explorer pings at cruise, not under load. I've tried many of the tricks including new intake gasket, but now I'm thinking the EGR is not functioning properly. At cruise, it sounds like something "clicks" and the pinging starts. If I go WOT, the pinging stops.
I cannot find the EGR, where is it? Does the car even have one?
TIA,
Scott
I cannot find the EGR, where is it? Does the car even have one?
TIA,
Scott
Postmaster
Joined: Dec 2001
Posts: 3,742
Likes: 2
From: UT
Pinging 4.0
The '92 doesn't have an EGR valve. The EGR didn't show up on the explorer 4.0 until '94.
As far as your pinging, in addition to cleaning the MAFS, I've heard some who get the pinging to go away by cleaning the injectors (did you look at them or have them cleaned while you were doing the intake manifold gasket?), decarbonizing the cylinders, a problem with the ECT sensor, some other vacuum leak or air intake leak. In essence, anything that can make the engine run lean can cause it to ping (the lean condition is the cause of the ping).
Good luck
As far as your pinging, in addition to cleaning the MAFS, I've heard some who get the pinging to go away by cleaning the injectors (did you look at them or have them cleaned while you were doing the intake manifold gasket?), decarbonizing the cylinders, a problem with the ECT sensor, some other vacuum leak or air intake leak. In essence, anything that can make the engine run lean can cause it to ping (the lean condition is the cause of the ping).
Good luck
Postmaster
Joined: Dec 2001
Posts: 3,742
Likes: 2
From: UT
Pinging 4.0
The '92 doesn't have an EGR valve. The EGR didn't show up on the explorer 4.0 until '94.
As far as your pinging, in addition to cleaning the MAFS, I've heard some who get the pinging to go away by cleaning the injectors (did you look at them or have them cleaned while you were doing the intake manifold gasket?), decarbonizing the cylinders, a problem with the ECT sensor, some other vacuum leak or air intake leak. In essence, anything that can make the engine run lean can cause it to ping (the lean condition is the cause of the ping).
Good luck
As far as your pinging, in addition to cleaning the MAFS, I've heard some who get the pinging to go away by cleaning the injectors (did you look at them or have them cleaned while you were doing the intake manifold gasket?), decarbonizing the cylinders, a problem with the ECT sensor, some other vacuum leak or air intake leak. In essence, anything that can make the engine run lean can cause it to ping (the lean condition is the cause of the ping).
Good luck
Trending Topics
Senior User
Joined: Nov 2002
Posts: 124
Likes: 0
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
Milwaukee1979F150
Explorer, Sport Trac, Mountaineer & Aviator
9
Oct 4, 2010 12:17 PM
