Trrottle Body Cleaning
- Thread starter bankswood
- Start date
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chauncey0337
Full Access Member
It's like regular maintenance, Helps your truck run better.
I had a low/rough idle and cleaned the TB, MAF, and did a Seafoam treatment all at once. Ran beautifully afterwards. Not sure, though, if it was one thing or a combination of it all that did the trick, but I'd say it's worth doing. It's pretty easy.
Hey AK,
I seafoamed but only poured 1/3 in tank and 2/3 in oil. I understand that you really need to put it in through the brake booster vacumn hose. Two questions? where is this hose and two do you just pour it in the hose while the engine runs and how much of the can do you use?
I seafoamed but only poured 1/3 in tank and 2/3 in oil. I understand that you really need to put it in through the brake booster vacumn hose. Two questions? where is this hose and two do you just pour it in the hose while the engine runs and how much of the can do you use?
chauncey0337
Full Access Member
Half in the gas tank, half in the brake booster hose. Remember to keep it about 1500 rpms and don't stall the engine by pouring too fast. It's a vacuum hose so you can pour it in or suck it up.
http://tahoeyukonforum.com/forum/showthread.php?t=30257&highlight=brake+booster&page=2
http://www.tahoeyukonforum.com/forum/showthread.php?t=25556
Depends on if you have hydro boost or not. One of these threads should help. Here's a video too-
http://www.youtube.com/watch?v=4iLDzz65jck
http://tahoeyukonforum.com/forum/showthread.php?t=30257&highlight=brake+booster&page=2
http://www.tahoeyukonforum.com/forum/showthread.php?t=25556
Depends on if you have hydro boost or not. One of these threads should help. Here's a video too-
http://www.youtube.com/watch?v=4iLDzz65jck
Last edited:
youtube it, there's a million vids.
Be careful as LS based motors hydrolock very easily.
Be careful as LS based motors hydrolock very easily.
Where the right hose is depends on your engine/model, too. You might have to search around a bit. Here's a link where we go through a couple to find mine, with pics back and forth. Should help you locate yours. Thanks to Rivieraracing for his assist on mine. I think this is a duplicate of one of the links that Chauncey posted.
http://www.tahoeyukonforum.com/forum/showthread.php?t=25556
http://www.tahoeyukonforum.com/forum/showthread.php?t=25556
Hydro locking a motor is getting to mutch fluid into the cylinder.
Fluid doesnt compress like air, thus bending or breaking rods.
you want to extend what ever hose your going to inject the seafoam into so that you can hold it tightly with pair of pliers, channel locks work great for this.. while pinching the hose completly closed, insert the end of hose into bottle of seafoam, and gently loosen grip on pliers untill you hear it start to pull in the fluid...
allow just alil bit in but at a stead rate, while having helper maintain a 1500-2k rpm... basicly just high enough to maintain a steady rev, with lil to no missing..
pull in aprox 1/3 of the bottle then shut off engine, let it sit for aprox 30 mins..
Then repeat above till your aprox half bottle.
after letting soak again for 30 mins, this is when the real smoke show begins..
while letting engine sip the seafoam, rev to 3k and hld it. allow just a slight bit more of seafoam in, REMEMBER to mutch and BOOM!
just take your time and let it suck down rest of bottle.. notice the huge smoke show.
once bottle is empty, kill engine, let sit for 30 mins then fire it up and rev to 1500, let it burn out most of the seafoam thats left in engine, then go for a drive...
get on it and have alil fun. it will blow out all the rest of the seafoam and you will notice a mutch smoother idle and more power if your system was clogged up.
Smoke is carbon and sludge burning. If you pour in seafoam and get no smoke, you have clean engine....
My 2000 denali 5.7 needed 4 bottles ran through it before it stopped smoking.
Fluid doesnt compress like air, thus bending or breaking rods.
you want to extend what ever hose your going to inject the seafoam into so that you can hold it tightly with pair of pliers, channel locks work great for this.. while pinching the hose completly closed, insert the end of hose into bottle of seafoam, and gently loosen grip on pliers untill you hear it start to pull in the fluid...
allow just alil bit in but at a stead rate, while having helper maintain a 1500-2k rpm... basicly just high enough to maintain a steady rev, with lil to no missing..
pull in aprox 1/3 of the bottle then shut off engine, let it sit for aprox 30 mins..
Then repeat above till your aprox half bottle.
after letting soak again for 30 mins, this is when the real smoke show begins..
while letting engine sip the seafoam, rev to 3k and hld it. allow just a slight bit more of seafoam in, REMEMBER to mutch and BOOM!
just take your time and let it suck down rest of bottle.. notice the huge smoke show.
once bottle is empty, kill engine, let sit for 30 mins then fire it up and rev to 1500, let it burn out most of the seafoam thats left in engine, then go for a drive...
get on it and have alil fun. it will blow out all the rest of the seafoam and you will notice a mutch smoother idle and more power if your system was clogged up.
Smoke is carbon and sludge burning. If you pour in seafoam and get no smoke, you have clean engine....
My 2000 denali 5.7 needed 4 bottles ran through it before it stopped smoking.
