Injection Air Filter
Injection Air Filter
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 OEM SURVIVOR 82 CORVETTE VETTE CROSSFIRE INJECTION AIR BREATHER FILTER ASSEMBLY  US $169.95
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 NOS Mercedes 111 600 113 injection pump air filter US $119.00
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 58 62 Corvette ROCHESTER FUEL INJECTION AIR CLEANER FILTER fi US $62.00
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 NEW 58 59 Fury Chrysler 300 4 Bbl Air Filter FI AFP 15 1958 1959 Fuel Injection US $39.99
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 NOS AC PF 131 OIL FILTER CORVETTE BEL AIR 1956 1957 FI US $22.95
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Why am I getting a loud humming noise (like a horn) at lower rmps from my air intake on a 97 Ford F150 4.6L?
Hello, I bought and installed the K&N Fuel Injection Performance Kit (FIPK) for a 97 4.6L Ford F-150. I installed the kit solely on the directions provided. At times, there is a noise that sounds a lot like a horn on a ship or large boat pulling into a harbor somewhere (as cheesy as that my sound). Anyway, I notice it mainly when there are lower rmps. Also when I start the truck, let it run for a couple minutes, then shift into drive, right after that the noise starts. Also when the noise is goin on, the rpms are raised, almost like the air is gettin cut off and when the sound stops, the rpms drop and nearly kills the engine but it goes to normal. The noise is rather loud too, can be heard over the stereo. And the noise seems to be coming from the filter area, or it maybe could be directed out that way. Any feedback for this matter would be greatly appreciated.
Yep, that is a moan. It's a resonance being set off
in the air induction system. IAC's solonoids have been known to do this. An IAC is idle air control. It provides
a bypass of air around the throttle so engine can idle.
My Water Injection HomeMade System