05 5.4L Cold air intake question (probable cause of throttle body issue)
05-29-2015, 10:54 AM
#11
Junior Member
Thread Starter
Yeah... thought what were they thinking ?? should of trimmed the plastic vice the metal intake tube...
When you remove the throttle body to clean it, imagine how much of the crud got past the throttle plate, and into your cylinders.
05-29-2015, 07:10 PM
#12
Senior Member
That would have made more sense, even though it would allow even more warmer engine heat to be drawn in by the open filter.
To the OP: get a stock air cleaner setup. It will work much better than the CAI you have; it draws cool air from the side fender, where as your setup is drawing warm engine air (that rubber seal is supposed to seal against the hood, but I'll bet that seal is not functioning as such), and that slit that was cut has been drawing unfiltered air into your engine for some time. When you remove the throttle body to clean it, imagine how much of the crud got past the throttle plate, and into your cylinders.
To the OP: get a stock air cleaner setup. It will work much better than the CAI you have; it draws cool air from the side fender, where as your setup is drawing warm engine air (that rubber seal is supposed to seal against the hood, but I'll bet that seal is not functioning as such), and that slit that was cut has been drawing unfiltered air into your engine for some time. When you remove the throttle body to clean it, imagine how much of the crud got past the throttle plate, and into your cylinders.
05-29-2015, 09:21 PM
#13
Senior Member
Just went back and re-examined the pic. Definitely chafed through. You can see the witness marks on the edge of the box. Sloppy installation.
Last edited by PerryB; 05-29-2015 at 09:23 PM.
05-29-2015, 10:41 PM
#14
I'm pretty sure that hole was chafed in by the tube rubbing the box. We had a similar issue several years ago on one of our ag planes. Dusted out the rings and resulted in a new set of loaded jugs. Just went back and re-examined the pic. Definitely chafed through. You can see the witness marks on the edge of the box. Sloppy installation.
Pretty much everything about this intake is bad.. Betcha the plastic and bits of metal got sucked in too..
05-29-2015, 11:39 PM
#15
Senior Member
05-30-2015, 08:13 AM
#16
Clean the TB with TB cleaner like this:
Clean MAF with MAF cleaner like this:
You'll want to use these cleaners as the MAF and TB have unique coatings on them that cleaners like brake parts cleaner would destroy. I think the 05 has drive by wire, but I would take the TB off and make sure there are no sand/rocks in there binding it up. Part of me would remove the intake manifold and clean it out as well.
If you are in Mn or willing to drive I have a 5.4 3v stock air intake you can have. The Gotts Mod was the only thing done to it and it has a really clean wix filter in it. This was removed when the CAI was put in there very many moons ago.
Clean MAF with MAF cleaner like this:
You'll want to use these cleaners as the MAF and TB have unique coatings on them that cleaners like brake parts cleaner would destroy. I think the 05 has drive by wire, but I would take the TB off and make sure there are no sand/rocks in there binding it up. Part of me would remove the intake manifold and clean it out as well.
If you are in Mn or willing to drive I have a 5.4 3v stock air intake you can have. The Gotts Mod was the only thing done to it and it has a really clean wix filter in it. This was removed when the CAI was put in there very many moons ago.
06-01-2015, 01:12 PM
#17
Junior Member
Thread Starter
yeah the throttle body was definitely pretty nasty. Got it cleaned up and the truck seems to be running ok so far. Cleaned the MAF too--although that didn't seem that bad. I noticed minimal increase in HP, but there is a definite increase in MPG. Previously 15.4 was the best I could get, even w/the a/c off. Drove about 15 miles yesterday and another 25 today and i've been getting 16 to 16.2 MPG. Sweet!
I'd totally take that intake from you but i'm nowhere near Mn. But thanks for the offer!
I'd totally take that intake from you but i'm nowhere near Mn. But thanks for the offer!
