1996 5.8 F-250 Upper plenum

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Jul 9, 2022 | 07:35 PM

Terdman05

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1996 5.8 F-250 Upper plenum

I’m trying to get my upper plenum off on my 1996 351w efi. We took out what I believe is all the bolts but can’t get the plenum to come off. The front half lifts up but the back is stuck down and can’t see what’s holding it down. Does anyone have an idea what is could be? I can feel a bolt with my hand but I’m not sure if it’s a plenum bolt. Is there one in the back under the fuel return line? And if so how do u get it out

Jul 9, 2022 | 08:21 PM

My4Fordtrucks

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There are five hex head bolts and one Torx head bolt. Two up front. Two in the middle and two at the rear.

Jul 9, 2022 | 10:25 PM

Conanski

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From: Ottawa, Ontario

The torx head bolt is on the passenger side and is only acsessable via the slot in the upper between the front and rear runner groups. You need a 6" long T40 bit I believe it is, or a short bit in a 1/4" socket with a 6" 1/4" drive extension. Nothing bigger than those two will fit in the slot.