Piston knock sound=Carbon Buildup?
#1
Piston knock sound=Carbon Buildup?
Ive got this soft knock sound when my truck runs and i swore it was a thrown rod or something but i looked on an all data computer on my truck and it said that this could be carbon buildup in the combustion chamber(is this the cylinder?). Could this be true, and if so what should i do to fix it?
#3
i heard the best thing to clean carbon build up is GM Top Engine cleaner
u pour it into any vaccuum of the engine, and it'll clean it out brand new
theres also a pour in product called XPR that will do the same thing, u just pour it in the gas tank and it'll eat all the carbon away...
i havent tried either yet, as i cant find any, but i'l do it asap, this is a problem i have as well...
u pour it into any vaccuum of the engine, and it'll clean it out brand new
theres also a pour in product called XPR that will do the same thing, u just pour it in the gas tank and it'll eat all the carbon away...
i havent tried either yet, as i cant find any, but i'l do it asap, this is a problem i have as well...
#5
yah, just try either of those products if u can get a hold of them
most people are leery of "mechanic in a bottle" type deals, but they do work...but there are also a lot of fakes out there....
www.xpr.com i think is the website...its legit...
most people are leery of "mechanic in a bottle" type deals, but they do work...but there are also a lot of fakes out there....
www.xpr.com i think is the website...its legit...
#7
#11
#14
Originally Posted by TippnOver
HIJACKING IN PROGRESS
i think my valves are rattling...will a top engine cleaner or carbon remover take care of this?
kinda sounds like marbles are in the engine when its parked or idle...
i think my valves are rattling...will a top engine cleaner or carbon remover take care of this?
kinda sounds like marbles are in the engine when its parked or idle...
#17
My friend's real big with his Honda and on forums all the time. They said to use Sea Foam, as mentioned in this thread. His accord has about 260,000 miles and he put 1/3 bottle in the TB, it smoked white for a good 20min running at idle. He said it runs alot better, smoother, more power, and he knows what he's talking about. I put the same amount in my 4.0 and a tid bit of white smoke came out for a few seconds, i have only 38,000 miles so it probably didn't do too much, haven't driven too far from where I did it so I couldn't see if it changed anything on mine.
It's good for putting in gas, oil, pretty much everything, as read on the bottle.
Available at i guess any auto parts store for around $5
It's good for putting in gas, oil, pretty much everything, as read on the bottle.
Available at i guess any auto parts store for around $5
#18
score, i have 2 probs. the valves clicking and another sound.. that marble sound
i could never explian how it sounded! haha so that makes 3 of us...
as for the GM stuff, i know someone at a chevy dealership, i may try getting some of that.. i have also heard from wayne, just a fine mist of water at about 3000 rpms..
i could never explian how it sounded! haha so that makes 3 of us...
as for the GM stuff, i know someone at a chevy dealership, i may try getting some of that.. i have also heard from wayne, just a fine mist of water at about 3000 rpms..
#20
Originally Posted by vansnxtweek
OLD THREAD: Did anybody ever find a fix for this?
15226 - 4.0 OHV MARBLE NOISE
Some 1998-2000 Ranger/Explorer equipped with a 4.0L OHV engine may exhibit an engine noise that may be perceived by the customer as a "Diesel" type noise and is known as Marble Noise. Marble Noise is clearly heard when the vehicle is at idle, under 2000 RPM or under very light/no load. High mileage studies of the condition show no adverse effect to engine life or performance. Cleaning carbon from the combustion chamber will have no effect on the Marble Noise condition. Marble Noise is a characteristic noise of this engine and cannot be serviced with an engine exchange.
Some 1998-2000 Ranger/Explorer equipped with a 4.0L OHV engine may exhibit an engine noise that may be perceived by the customer as a "Diesel" type noise and is known as Marble Noise. Marble Noise is clearly heard when the vehicle is at idle, under 2000 RPM or under very light/no load. High mileage studies of the condition show no adverse effect to engine life or performance. Cleaning carbon from the combustion chamber will have no effect on the Marble Noise condition. Marble Noise is a characteristic noise of this engine and cannot be serviced with an engine exchange.
#24
although I have a 4 cyl, I poured maybe a 1/4 of seafoam through the brake boaster line, waited the 5 mins to start it up, and it really didn't smoke much at all, just very lightly and you couldn't hardly notice it.......it smoked more when you reved it but only for like 10 secs.......its got 140k miles on it so I figured it would do more.