Pinging - F150online Forums

Go Back   F150online Forums > Powertrain & Mechanical > V8 Engines
Log In 


Thread Tools Search this Thread
Old 10-29-2005, 04:29 PM
Junior Member
Join Date: Oct 2005
Posts: 4

My Ford F150 04', 12,000 miles has an almost constant, slight rattling or pinging. I have a 1,400 lb (dry weight) pop-up camper that is on the truck at all times. I took the truck in to get service and they adjusted the timing, but it still pings. I have tried higher grade gas and octane boost, but it still pings. Any suggestions, please?
Reply With Quote
Old 10-29-2005, 11:13 PM
Senior Member
Join Date: Feb 2001
Location: Guyton, GA USA
Vehicle: 2012 Ford F150
Posts: 748
Take it back to the dealer. The higher grade gas will reduce the pinging a little, but it is not a good idea to burn it in your engine. They are made to run on 87.
Reply With Quote
Old 10-30-2005, 12:47 AM
Junior Member
Join Date: Oct 2005
Location: Port Arthur, Texas
Vehicle: 2004 Ford F150
Posts: 3
I have the same problem with my 04 Supercrew 4.6 liter. I took it to the dealer, they replaced the timing chains and the guides, and I still have the problem. The pinging sounds like an old muscle car that the valves are pinging due to the octane of the gas. I have tried different makes and grades of gas and still the same thing. Its going back to the shop Monday, the dealer says they do not know what the problem is. It doesnt do it at idle only in gear and under a load.
Reply With Quote
Old 10-30-2005, 03:38 AM
Senior Member
Join Date: May 2005
Location: Arizona
Vehicle: 1995 Ford F150
Posts: 198
I would check for air in the cooling system. This is just a guess, I don't know about this motor-- but it's a general thing to check. As with most things, if it's not a problem inherent to that engine, it's probably something simple.
Reply With Quote
Old 10-30-2005, 11:06 AM
Senior Member
Join Date: Jul 2004
Location: Easton, Pa.
Vehicle: 2002 F150 super crew
Posts: 5,247
First are you sure it is ping? You seem not to be sure.
Pinging is the results of ignition too early in the cycle.
If premium fuel does not help this then it is not the the problem assuming it is not pinging so severe that the truck should not be driven.
First thing I would do is take the camper off and see what you have then go from there. If it all but stops then it is load related and special measures need to be considered.
You need to entertain the thoughts that the dealer is bound by a set of standards and rules that sometimes puts them and you in a bind to solve special problems that may not be in the normal catagory for repairs. Then this is the results, they try and you get upset.
I pull GCW weight in the 12,000 lb range on 87 fuel with no problem.
Good luck.
Reply With Quote
Old 10-30-2005, 12:11 PM
Senior Member
Join Date: Jun 2001
Location: Knoxville, TN.
Vehicle: 2010 Ford F-150
Posts: 1,160
Have you tried resetting the PCM?

I had that pinging problem with my '98 4.6, and resetting the PCM fixed it, for me.

Somehow the spark advance got messed up, and the computer needed to "re-learn" the proper settings.

Doesn't cost anything to try.

Reply With Quote
Old 10-30-2005, 04:09 PM
Join Date: Oct 2005
Vehicle: 1998 Ford F-150
Posts: 46
my 98 4.6 with 80,000 miles pings but only on the highway when im trying to pass someone and I have the throttle completely open(foot to floor heh)from a takeoff with the throttle wide open theres no ping at all.Ive tried various octanes from different stations and even tried using octane booster.
Reply With Quote
Old 10-30-2005, 11:56 PM
Senior Member
Join Date: Jan 2005
Location: Fort Worth,Tx
Vehicle: 1997 Ford F150
Posts: 5,389
Send a message via AIM to Faster150
sounds like a fuel timing issue. did they hook it up to WDS and look at the fuel curve while under acceleration
Reply With Quote
Old 11-02-2005, 01:22 AM
Senior Member
Join Date: Dec 1998
Location: So Ca
Vehicle: 1998 Ford F-150
Posts: 233
I don't know about the 2004 trucks, but there used to be a shorting jumper on a connector on the cable harness going to the computer. If the engine knocks, you just removed the jumper and the computer knows to back off the timing advance.
'98 F-150 Std., RC, SB, 4x2, 4.2L, 5-sp, 3.08, AC, speed control, rear slider, 196,000+ miles.
Mods: Mobil 1 engine oil, Red Line D4 ATF trans fluid, Edelbrock IAS shocks, si/so 50 Series Flowmaster, airbox mod, Perma-Cool electric radiator fan, Superchip, ASP underdrive pulley, Magnecor wires, UnderCover, reman engine (@148,000 mi)
Reply With Quote
Old 11-02-2005, 10:05 PM
Join Date: Dec 1999
Location: CA
Posts: 59
My 97 4.6 would ping under load, especially when pulling a trailer. Finally cleaned the MAF and all pinging is gone. I bought the security tool and removed it. Used The quick dry electrical cleaner.
Reply With Quote


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tuning 4R70W for Towing (2001 F-150) oldnnew Towing & Hauling 9 11-13-2015 07:08 PM
93 octane going back to 87 ? blkjak 1997 - 2003 F-150 7 09-13-2015 10:02 PM
Noisy 08 F150 5.4 L strat1960s 2004 - 2008 F-150 4 09-08-2015 12:55 AM
engine noises 351 5.8 please help identify drtyjrzy V8 Engines 1 08-22-2015 09:19 PM
anatomy of an engine failure andrew s V8 Engines 0 11-05-2000 11:49 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Refbacks are Off

All times are GMT -4. The time now is 02:55 AM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordé is a registered trademark of the Ford Motor Company