A1cntrler
Well-Known Member
Over the past 2 weeks I've been hearing some pinging at low RPM in higher gears under light acceleration. I'm not really sure how long it's been happening, as I can only hear it with the windows down and along a certain stretch of road where there are walls or a higher curb along the roadway.
Here are the ingredients that seem to cause it to happen:
-Engine is completely warmed up (Temperature runs normal)
-Light acceleration in top gear (35-45mph, slight incline or light gas pedal pressure to maintain speed)
If I turn the O/D off or force a gear change it goes away. It will continue to ping until the gear changes bringing the RPM up.
-108,000 miles on the '07
-Plugs were changed about 3500 miles ago. All were clean and no carbon build up causing any breakage. I used OEM Motorcraft plugs.
-I only use Top Tier gas (Regular)
-I am using a tune from Torrie. Stock tune to improve the shifting/throttle response. This tune is new (less than a year old)
I've been using Lucas Upper cylinder lubricant/Fuel Injector cleaner about evey 10k miles since new.
Should I try replacing the O2 sensors? Cleaning the MAF? Fuel filter is fairly new (10/12k maybe)
I've watched videos to make sure it is pinging and not timing chain/Cam Phasers/etc. The only sound it exactly matches is the Pinging videos.
I'm confident the inside of the motor is clean. Regular oil/filter changes since new, quality synthetic oil. Only Motorcraft oil filters used. I doubt this is an issue with carbon build up on the piston causing detonation.
There are no codes existing or pending when checked using my OBD scanner and checking with my SCT tuner as well.
Any ideas?
Here are the ingredients that seem to cause it to happen:
-Engine is completely warmed up (Temperature runs normal)
-Light acceleration in top gear (35-45mph, slight incline or light gas pedal pressure to maintain speed)
If I turn the O/D off or force a gear change it goes away. It will continue to ping until the gear changes bringing the RPM up.
-108,000 miles on the '07
-Plugs were changed about 3500 miles ago. All were clean and no carbon build up causing any breakage. I used OEM Motorcraft plugs.
-I only use Top Tier gas (Regular)
-I am using a tune from Torrie. Stock tune to improve the shifting/throttle response. This tune is new (less than a year old)
I've been using Lucas Upper cylinder lubricant/Fuel Injector cleaner about evey 10k miles since new.
Should I try replacing the O2 sensors? Cleaning the MAF? Fuel filter is fairly new (10/12k maybe)
I've watched videos to make sure it is pinging and not timing chain/Cam Phasers/etc. The only sound it exactly matches is the Pinging videos.
I'm confident the inside of the motor is clean. Regular oil/filter changes since new, quality synthetic oil. Only Motorcraft oil filters used. I doubt this is an issue with carbon build up on the piston causing detonation.
There are no codes existing or pending when checked using my OBD scanner and checking with my SCT tuner as well.
Any ideas?