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Last weekend I pulled my intake to clean my MAF and throttle body. (also ended up painting the intake, one of those "well...as long as it's off..." things)
I undo the MAF, clean it up, unclamp the intake, remove it, and notice this big label on top of the intake that says something to the effect of "do not clean throttle body or intake." Anybody know why? I went ahead and cleaned it anyways, just took a little extra precautions and checked where I was spraying. It sure needed it.
So any clue as to why it says not to and if you could mess anything up by doing it? Sure didn't change anything on my truck as far as I can tell.
hmm lemme run out in the garage and I'll have a look.
STP Throttle Body & Air Intake Cleaner, little can of stuff.
I actually when ya spray it, the crap on there just starts running off, rub it down with a cloth and then it's like "whoa...my intake is supposed to be that colour?"
Not when it's purpose is to improve airflow/decrease resistance . They don't spend money putting it there for ornamental reasons.
The problem though Bill, IMO, is that the coating really doesn't work all that well. After the first 10-15K or so the coating is pretty much covered with dirt and carbon anyway, which of course cancels out any benefit the coating may have provided.
Yeah exactly, mine was coated with stuff. So I'm really glad it got cleaned up, whether they like it or not. I'll get in there repeatedly rather then trust that coating to stay clean.
The problem though Bill, IMO, is that the coating really doesn't work all that well. After the first 10-15K or so the coating is pretty much covered with dirt and carbon anyway, which of course cancels out any benefit the coating may have provided.
Teflon and similar modern blends are pretty slick . It helps address the porosity/roughness that is inherent in the Al casting. It's pretty hard to get in there and machine things smooth, not to mention the cost (ouch). One way to think about it is to compare the coating to a waxed car vs unwaxed car. Dirt likes to cling to the unwaxed vehicle more easily than a just waxed car.
I just spray that cleaner in there, let it sit 5 minutes, get a brush in there, then vroom watch that thing smoke all that crud out of there. I was also informed you are supposed to change plugs afterwards, but I saw no reason too.
I did do the plugs thing. Well actually, lemme rephrase that. I put the old crap ones in cleaned it, ran it, then put the new ones back in. Glad I didn't do the new plugs first then do it, that woulda been a mess!
Peter you wax your truck every day? Wow that's pretty dedicated.
I'd add waxing the TB in, right next to the tires, transmission, and rear end. lol.
I *MIGHT* wax my truck once a week when i get all the rust fixed up and get it airbrushed. I dont think i've waxed the thing since i've gotten it. If you want to know why look at my gallery. Those rust holes probably add some air resistance????
Time to present the results of a little TB cleaning investigation I performed this afternoon. 2004 Ranger FX4 Level II, 4.0 SOHC, 5R55E, 4.10's.
The mileage:
The TB:
The results of cleaning the inlet side of the TB from the 6 o'clock to the 11:30 o'clock position. The top end of the q-tip was used; the bottom was not. TB cleaner and not carb cleaner was used.:
Not a whole lot of dirt in there for the mileage and living in an area with an aveage to slightly above average amount of dirt in the air. My regards to the guy that didn't understand the simple analogy noted in an earlier post; it was intended to help rather than confuse .
Last edited by CowboyBilly9Mile; Mar 13, 2006 at 06:51 PM.