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post #1 of (permalink) Old 05-14-2003, 03:06 PM Thread Starter
 
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pinging 460

I need some help on this one. My p/u is a '97 F-350 4wd with the E4OD. Every time I take it out on the freeway the engine pings. I don't mean just on grades, we are talking the entire time.

Now, I have taken some steps to try and eliminate the problem. I have changed the spark plugs, ran super unleaded (91 octane) and I even advanced the timing by a 1/4-1/2 degree (very slight). It still pings and really pisses me off [img]images/graemlins/AR15firing.gif[/img].

I run 315/85R16 tires and 4.11 gears if that helps out.

Thanks for the help.
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post #2 of (permalink) Old 05-14-2003, 04:19 PM
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Re: pinging 460

and I even advanced the timing by a 1/4-1/2 degree (very slight).
You need to go the other direction with the timing.
Retard it by 2 and see where you're at.
Advancing the timing will only make the "pinging" worse. [img]images/graemlins/frown.gif[/img]
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post #3 of (permalink) Old 05-14-2003, 07:16 PM Thread Starter
 
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Re: pinging 460

Okay, I will give that a try.

Thanks,

Mark
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post #4 of (permalink) Old 05-14-2003, 07:56 PM
 
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Re: pinging 460

Where you at in Nevada Mark? I'm in Carson. PM if you want. NORM
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post #5 of (permalink) Old 05-19-2003, 10:19 AM Thread Starter
 
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Re: pinging 460

Okay, I have retarded the timing (too much at first) and now the truck is sluggish and hard to start in the morning. I am almost back to where I started. I haven't run it out on the freeway so I am not sure if it is still pinging. Anymore suggestions?

Thanks
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post #6 of (permalink) Old 05-19-2003, 11:57 AM
 
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Re: pinging 460

Re-time it again but get it somewhere between sluggish/hard start and pinging.
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post #7 of (permalink) Old 05-19-2003, 05:29 PM
 
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Re: pinging 460

As they would say in olden times (BigNorm still says it [img]images/graemlins/blush.gif[/img] ) "Advance it till it talks to ya and then back it off a little. Make sure you set the idle at around 2000rpm when you do it though and block off the vacuum advance.
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post #8 of (permalink) Old 05-19-2003, 05:46 PM
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Re: pinging 460

Well, it hasn't been mentioned yet. [img]images/graemlins/crazy.gif[/img]
But, have you pulled the codes yet?
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post #9 of (permalink) Old 05-19-2003, 05:50 PM
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Re: pinging 460

Norm, Its a 97! no vacuum advance [img]images/graemlins/wink.gif[/img]

If a 97 is still utilizing the TFI-IV ignition, you need to locate and disconnect the SPOUT connector before setting your base ign. timing. Sorry, not sure where the connector is on a 460 EFI.

I would pull the codes and check your fuel system also, maybe its running lean for some reason causing the detonation...
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post #10 of (permalink) Old 05-19-2003, 07:29 PM Thread Starter
 
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Re: pinging 460

I did pull the codes earlier. Nothing came up.

Thanks for all the help guys! [img]images/graemlins/40BEER.gif[/img]
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