Recycled Air?

87LX · June 4th, 2008, 10:57 PM

Just threw a new air filter in my 87 2.3l and noticed a hose which leads exaust back around to the air box. Why would ford want to run hot air back through the engine? Seems like something that'd be a good idea to remove. I guess I would have to block off the holes... anybody removed this thang?

Squints · June 5th, 2008, 01:35 AM

that's connected to the positive crankcase ventaltion valve (pcv valve.)

it vents blowby pressure. leave it there.

BWAL · June 5th, 2008, 01:37 AM

that's connected to the positive crankcase ventaltion valve (pcv valve.)

it vents blowby pressure. leave it there.

Squints · June 5th, 2008, 01:37 AM

on second thought, go with what bwal said.

BWAL · June 5th, 2008, 01:38 AM

TurboLX · June 5th, 2008, 10:27 AM

you can remove it.

-cold-machine- · June 16th, 2008, 05:25 PM

mine has been removed when i did my header. no importance to it.. Seriously think it was more there to keep the manifold cool maybe to reduce the tempature in the engine bay ?

June 4th, 2008, 10:57 PM	#1
87LX Newbie Join Date: May 2008 Posts: 14 iTrader: 0 reviews	Recycled Air? Just threw a new air filter in my 87 2.3l and noticed a hose which leads exaust back around to the air box. Why would ford want to run hot air back through the engine? Seems like something that'd be a good idea to remove. I guess I would have to block off the holes... anybody removed this thang?

June 5th, 2008, 01:35 AM	#2
Squints 2008 Hammock Rodeo Champ 2003 F-150 Lariat FX4 Supercab Join Date: Dec 2007 Location: VB,VA Posts: 1,237 iTrader: 0 reviews	that's connected to the positive crankcase ventaltion valve (pcv valve.) it vents blowby pressure. leave it there. __________________ i have no mustang. so don't listen to anything i say.

June 5th, 2008, 01:37 AM	#4
Squints 2008 Hammock Rodeo Champ 2003 F-150 Lariat FX4 Supercab Join Date: Dec 2007 Location: VB,VA Posts: 1,237 iTrader: 0 reviews	on second thought, go with what bwal said. __________________ i have no mustang. so don't listen to anything i say.

June 5th, 2008, 10:27 AM	#6
TurboLX I Post Entirely Way Too Much 1988 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,792 Blog Entries: 1 iTrader: 0 reviews	you can remove it. __________________ 1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.

June 16th, 2008, 05:25 PM	#7
-cold-machine- Regular Join Date: Aug 2007 Location: Winnieg, Manitoba, Canada Posts: 498 iTrader: 0 reviews	mine has been removed when i did my header. no importance to it.. Seriously think it was more there to keep the manifold cool maybe to reduce the tempature in the engine bay ? __________________ 1990 2.3L Mustang Hatchback. 2000 3.8L Mustang.

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