Pinging!!
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Freshman User
Joined: Jun 2005
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Pinging!!
I took my truck to the dealership for some low RPM pinging with reg unleaded quik-trip gas (good stuff top tier rated). They replaced the mass airflow sensor, did a fuel injection service, and a computer reporgram. It still pings, just not as bad.. any ideas?
2001 F250 CC SB 4X4 V10 54000miles
2001 F250 CC SB 4X4 V10 54000miles
Postmaster
Joined: Dec 2003
Posts: 3,130
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From: Massachusetts
When you say low RPM, are you talking around 1000 to 1200 right before it shifts out of overdrive? If so, I had that in my 03' V10 ever since I drove it off the lot. I know these things are suppose to run on 87 octane. For the longest time I drove around with the overdrive off and it worked fine but MPG suffered. So this I started manipulating the tranny with my foot. When I got to a section af incline in the road that I knew pinging was gonna happen, I just let off the gas for a second and back in.....the tranny would downshift without having to go faster to get it into passing gear. Running a higher octane fuel took that pinging away for me. As of right know I have added a superchips microtuner and I am running 93 octane and it never pings, ever.
Junior User
Joined: Apr 2003
Posts: 61
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You might want to look into a "top end" cleaning...where a machine is hooked up to your intake (I think) and cleans all of the carbon out of the combustion chamber and piston tops....carbon is the main cause of the pinging you described.
Senior User
Joined: Dec 2001
Posts: 268
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From: OZ
Try different gas. Mine is fine most of the time on QT gas, but not always. Qt can get its fuel from different sources. Sometimes it has problems.
I have found in my case, the gas makes the difference in pinging or not
I have found in my case, the gas makes the difference in pinging or not
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 420
From: Long Island USA
It's probably the EGR! The passages get clogged with carbon over time, and the EGR doesn't flow enough.
The EGR is Exhaust Gas Recirculation - it's to reduce the peak combustion temps.
Same thing higher octane gas does
Bring it back to the dealer and tell them about the EGR and maybe they'll give you a break because they didn't figure it out for themselves.
The EGR is Exhaust Gas Recirculation - it's to reduce the peak combustion temps.
Same thing higher octane gas does
Bring it back to the dealer and tell them about the EGR and maybe they'll give you a break because they didn't figure it out for themselves.
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