Carbon buildup
Every 10K mi. I spray almost half a can of O'Reilly's CRC Throttle Body fuel injected intake cleaner through the TB, and the rest through the brake booster vaccume line with engine running. Any thoughts on this? I have a 2001 4.6 with 40K on it. Should I do something to clear the EGR ports? Thanks.
-AR
-AR
I run 89 in my Stang and in our F-150 due to predet. problems associated with 87 at heavy accel.
89 cures predet. It does not clean the engine any better than 87. If you don't need the higher octane there is no reason to use it.
89 cures predet. It does not clean the engine any better than 87. If you don't need the higher octane there is no reason to use it.
The earlier mentioned products may keep the carbon from building up. I am not sure on that issue. EGR systems make things dirty by nature.
I highly doubt anything but digging it out of known clogged ports works.
My 5.4 hasn't got those ports that are described on the 4.6. It has a great big hole from the EGR. I imagine it is desgined to eat rocks should they come through the EGR. Sure didn't help keep the pinging down either.
I think pinging is the nature of these engines due to PCM calibration. Dirty injectors and MAF sensors along with EGR flow being either excessive on non existent will create the ping. Even at times on higher octane fuels.
IMHO once the pinging starts ya got lots of work to do.
tom
I highly doubt anything but digging it out of known clogged ports works.
My 5.4 hasn't got those ports that are described on the 4.6. It has a great big hole from the EGR. I imagine it is desgined to eat rocks should they come through the EGR. Sure didn't help keep the pinging down either.
I think pinging is the nature of these engines due to PCM calibration. Dirty injectors and MAF sensors along with EGR flow being either excessive on non existent will create the ping. Even at times on higher octane fuels.
IMHO once the pinging starts ya got lots of work to do.
tom
My Stang started pinging at 3,000 miles. That would be one heck of a lot of deposits building up for a 3,000 mile car. In my case, the pcm calibration is most likely more aggressive.
ALSO: to those who want to clean out their fuel system and lubricate vital points of their engine, Red Line make one heck of a good product called SI-1 Fuel System Cleaner. This will clean injectors with 1 treatment. I use a bottle in the gas every 5,000 miles. The product has been approved by Ford and other domestic/overseas motor companies.
ALSO: to those who want to clean out their fuel system and lubricate vital points of their engine, Red Line make one heck of a good product called SI-1 Fuel System Cleaner. This will clean injectors with 1 treatment. I use a bottle in the gas every 5,000 miles. The product has been approved by Ford and other domestic/overseas motor companies.
Sure might try the Redline. I have used SeaFoam and Chevron techron in the past. Both help but takes more than one treatment with either to see any real change in the fueling of the truck.
I know the PCM is what is making any of these engines ping with no miles on them. MAF sensor blaming is highly overdone IMHO.
Also why would one be building carbon at a terrible rate when they are running 80 down the hiway most of the day?
Since getting my PCM recal. I have not had much pinging at all. Once on 87 octane truck loaded and kinda dogged getting on the throttle in time to give the engine a chance to fight back.
Biggest thing about the PCM recal or flash it it is free if you have less than 80000 miles on the vehicle. That of course meands the dealer probably won't wanna try that.
tom
I know the PCM is what is making any of these engines ping with no miles on them. MAF sensor blaming is highly overdone IMHO.
Also why would one be building carbon at a terrible rate when they are running 80 down the hiway most of the day?
Since getting my PCM recal. I have not had much pinging at all. Once on 87 octane truck loaded and kinda dogged getting on the throttle in time to give the engine a chance to fight back.
Biggest thing about the PCM recal or flash it it is free if you have less than 80000 miles on the vehicle. That of course meands the dealer probably won't wanna try that.
tom
Actually I think it is more important to get the engine fueled right so there isn't so much carbon being built.
Lots of products can clean. And seem to on most any vehicle but one of these Modular engines.
IMHO
tom
Lots of products can clean. And seem to on most any vehicle but one of these Modular engines.
IMHO
tom
icetruck, no I don't work for them, kinda wish I did! Just love the product. It will completely clean out (or flush) out all carbon build up.
mf150, SI-1 worked for me, just not like LC/FP do. I thought SI-1 was great until I saw how well LC/FP work.
Just my opinions as I spent a lot of money searching for a good cleaner, and I finally found one that does so much more.
mf150, SI-1 worked for me, just not like LC/FP do. I thought SI-1 was great until I saw how well LC/FP work.
Just my opinions as I spent a lot of money searching for a good cleaner, and I finally found one that does so much more.


