1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Cat Question

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Nov 12, 2006 | 12:54 AM

#1

1987_f150

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From: State College, PA

Cat Question

On the cat, there is or was a tube coming up from it...looks like it heads to the engine...what should be there?

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Nov 12, 2006 | 07:51 AM

#2

TWULFF44

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Should be a tube running from the cat up to the engine compartment which belongs to the emissions system. It comes up the back of the motor on my 86 then goes into the emissions system.

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Nov 12, 2006 | 09:00 AM

#3

5_labsownus

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From: Fraziers Bottom, WV

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It is the tube from the air pump to the cat. The air flow from the pump throught the tube to the cat! This tube (flex) was a weak point!

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Nov 12, 2006 | 08:28 PM

#4

1987_f150

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From: State College, PA

no air pump on my truck...i can just plug that tube hole then i guess.

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Nov 12, 2006 | 08:30 PM

#5

1987_f150

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From: State College, PA

mines an 84 as seen below

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Nov 13, 2006 | 04:13 AM

#6

Redneck1465

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You can plug the whole, mine rusted off and there was no air pump on the truck so I just plugged it and it works great.

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