Cleaning the TB, MAF, & Chambers

[2XOverhead]

Just cleand the TB, MAF sensor and Seafoamed the chambers today.

TB: Cleaning it was pretty easy, although tedious and a bit of a bitc* to get to. I just used new shop towels, sprayed the cleaner on the towel, and wiped and wiped (and wiped!) until clean. The TB and butterfly were relatively dirty. Not as bad as I thought, but definitely needed cleaning.

MAF: The MAF sensor is mounted right on the top of the air filter housing. It's about the size of match book. The MAF wasn't dirty at all. But since I was already there, sprayed it anyway.

Seafoaming the chambers: I just pulled the air intake hose and let it slowly draw the Seafoam in. I poured the Seafoam in a clear plastic container so as to be able to measure the recommended 1/2 bottle, submerged about 1/4 (if that) of the diameter of the hose and the engine did the rest. Engine didn't stall at all as have been reported by some people here. But when I turned off the engine to let it sit for the recommended 20-30 min, it did knock a couple of times before it completely turned off (ouch!). Other than that, pretty smooth procedure and outcome. Oh yeh, lots of exhaust (but I liked it 'cause the more the smoke, the more crud I was getting out.)

Products used:
TB: simple (and cheap) STP Throttle and Air Intake cleaner (O2 sensor safe.)
MAF: CRC QD Electronic Cleaner.
Chambers: Seafoam.

Time: about 1 1/2 to 2hrs. Shouldn't take that long for you. I was taking my time following some March Madness and doing this at the same time.

Result: Seemingly quicker acceleration and responsiveness at the same throttle position as before the procedure.
__________________

[tundratrader]

When doing the seafoam I just pour into the hose it sucks it right up, when I want to stall the engine I just pour a bunch and it stalls it right out, should help with the knock. Then just let it sit for awhile. I usually spray simple green on the block and wash it off and then start and run my motor seams to time out about perfect.

[stevekx]

If I pull my air intake hose off the throttle body the engine stalls, did you use the vacum line to the brake booster?

[2XOverhead]

Originally Posted by stevekx

If I pull my air intake hose off the throttle body the engine stalls, did you use the vacum line to the brake booster?

I pulled the air intake hose that's directly attached on top of the manifold (you can't miss it), pulled loose the other end of the hose below the left side (facing the truck) of the TB.

[tundratrader]

THE pcv valve hose is what I was refering to. It doesnt stall with this one pulled off runs rough, put as you start pouring/sucking the seafoam it smooths out and idles high.
Zach

[stevekx]

Thanks, got it now

I sprayed and wiped where the butterfly is and also put seafoam into the tank, but could not get into the air intake body.

[Tundra Truck Driver]

Sorry in advance, but can anyone post a pic showing which hose to pull off for the Seafoam procedure? Thanks! Sorry again.

[tundratrader]

I will post a pic when I get off work, my camera is at home.

[tundratrader]

http://farm3.static.flickr.com/2319/...4d3fe7e7_b.jpg
http://farm3.static.flickr.com/2403/...2e2db106_b.jpg






Here is the PCV valve and hose, this has been the easiest place for me.

[Tundra Truck Driver]

Got it! Thank you tundratrader. Will do this when I can find time.

[T100_2_TUNDRA]

Did mine this afternoon, took about a half hour all told. Cleaned the TB as best I could. Used carb cleaner, had a black film past the butterfly. Sucked in the seafoam through the pvc line. Engine did stall out the first time, the second I held my finger over the end of the hose so the vacuum didnt drop down so much and I let it suck the liquid out of a glass. Let it sit about 15 to 20 mins, started it up, nothing much. Gunned the engine up to 3 grand and then I saw a cloud of white smoke. Guess it was drawing the seafoam into the cylinders from where it was sitting in the manifold. Let it run for about 5 mins, still a bit of smoke now and then. Will have to see later how it does.

[T100_2_TUNDRA]

First tank of gas after the work and its into the 18 range. Haven't seen it that high in well over a year and I usually check it every fillup. Interesting. I'll withhold judgment till I run a few more tanks through it.

[2XOverhead]

Originally Posted by T100_2_TUNDRA

Did mine this afternoon, took about a half hour all told. Cleaned the TB as best I could. Used carb cleaner, had a black film past the butterfly. Sucked in the seafoam through the pvc line. Engine did stall out the first time, the second I held my finger over the end of the hose so the vacuum didnt drop down so much and I let it suck the liquid out of a glass. Let it sit about 15 to 20 mins, started it up, nothing much. Gunned the engine up to 3 grand and then I saw a cloud of white smoke. Guess it was drawing the seafoam into the cylinders from where it was sitting in the manifold. Let it run for about 5 mins, still a bit of smoke now and then. Will have to see later how it does.

Sounds like you didn't get that much smoke. How much Seafoam did you draw? How many miles on your truck.

Just curious.

[T100_2_TUNDRA]

Originally Posted by rich29_cal

Sounds like you didn't get that much smoke. How much Seafoam did you draw? How many miles on your truck.

Just curious.

I ran 1/2 a can through it. Shut the engine off as soon as it was in. Let it sit about 20 mins.

[UnSub]

Originally Posted by T100_2_TUNDRA

I ran 1/2 a can through it. Shut the engine off as soon as it was in. Let it sit about 20 mins.

How many miles before this is needed?