Pinging
Thread Starter
|
Elder User
Joined: Sep 2006
Posts: 519
Likes: 1
From: Bountiful UT
Pinging
Ok all I am going nuts, my 88 F250 with 460 Has started pinging badly now that the temps are rising (summer) I am out of ideas. I have done cap, rotor, plugs, wires, and coil. timing is set to 10deg (spec) fuel filter and air filter are also new.
Any Ideas as to what I am missing?? It runs fine in the mornings but gets worse as the outside temps go up. If I run 91 octane fuel it all but stops pinging and generaly runs better.
Any Ideas as to what I am missing?? It runs fine in the mornings but gets worse as the outside temps go up. If I run 91 octane fuel it all but stops pinging and generaly runs better.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
21: Engine Coolant Temperature (ECT) Sensor Out Of Self Test Range
41: System Indicates Lean
The lean burn is the cause of your pinging, and I suspect the cause of the lean burn is a faulty Coolant Temperature Sensor telling the computer the engine is a lot hotter than it really is.
Here is what I'd do:
Get a new engine coolant temperature sensor and install it. Just remember that these trucks have two; one for the computer and one for the dash gauge. You'll want the one that has a two-pin connector on it. The dash sensor just has a single terminal pin.
Disconnect the battery for 15-30 minutes and drive it around for a while. If the pinging is gone - call it fixed. If the pinging is still there, pull the codes again and we'll go from there.
EDIT: Also get yourself a fuel pressure tester and check the fuel pressure. You should have 39.5 PSI key on engine off, a few PSI lower while idling, and 39.5 PSI if you snap the throttle wide open while running.
41: System Indicates Lean
The lean burn is the cause of your pinging, and I suspect the cause of the lean burn is a faulty Coolant Temperature Sensor telling the computer the engine is a lot hotter than it really is.
Here is what I'd do:
Get a new engine coolant temperature sensor and install it. Just remember that these trucks have two; one for the computer and one for the dash gauge. You'll want the one that has a two-pin connector on it. The dash sensor just has a single terminal pin.
Disconnect the battery for 15-30 minutes and drive it around for a while. If the pinging is gone - call it fixed. If the pinging is still there, pull the codes again and we'll go from there.
EDIT: Also get yourself a fuel pressure tester and check the fuel pressure. You should have 39.5 PSI key on engine off, a few PSI lower while idling, and 39.5 PSI if you snap the throttle wide open while running.
Trending Topics
Thread Starter
|
Elder User
Joined: Sep 2006
Posts: 519
Likes: 1
From: Bountiful UT
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
Junior User
Joined: Oct 2011
Posts: 66
Likes: 0
Hey one of my friends has a 1992 f150 4.9 and it surges any ideas. i cleaned the throttle body and he put new plugs and wire cap and rotor O2 and the temp plug at the front of the motor. it runs fine when your going but when you stop at a light it surges bad and sometimes dies...?
Elder User
Joined: May 2002
Posts: 927
Likes: 3
From: Lake Point, Utah
Hey one of my friends has a 1992 f150 4.9 and it surges any ideas. i cleaned the throttle body and he put new plugs and wire cap and rotor O2 and the temp plug at the front of the motor. it runs fine when your going but when you stop at a light it surges bad and sometimes dies...?
Thread
Thread Starter
Forum
Replies
Last Post
Tony Ricci
1987 - 1996 F150 & Larger F-Series Trucks
15
Nov 26, 2018 12:14 PM
Chuck999
1997 - 2003 F150
7
Mar 5, 2013 02:20 PM
