Hello fellow enthusiasts,
I could use a push in the right direction. My 2001 4.2 recently overheated. I located a little "L" shaped metal pipe that enters the intake manifold leaking coolant. It had a crack where it entered manifold. It is next to the engine coolant sensor. Removing the black rubber hose that was clamped to it broke this metal pipe off flush with intake man. Did this part origanally screw in , push in or is it a part of the intake itself. The haynes manual page 2A-7 shows a picture Fig. 7.17 of the manifold bolt tighting sequence. I can see the pipe is connected to the intake with the rubber hose as well. I am going to send along a photo of the pipe in question. Thank You : Hwy Menace

 

sounds like the intake "plenum" between the throttle body and the intake manifold. any lines coming out of it should be cast into the plenum, with a rubber hose pushed over the end of it. Those are all vacuum lines.

Replace you head and intake gaskets (both upper and lower) and see how it runs after that.
-Patrick

 

Hi patman,
This pipe I am refering to has coolant flowing through it from top of intake down to water pump. It has a 1" black rubber water hose that is basicly the same size "L" shaped as well. It is hose clamped on both sides. If this is a vac. hose all is lost and I might as well give up and let the dealer burn me or burn vehicle. If this pipe is cast into the manifold I'd say terrible idea for ford to make that part since it is prone to corosion.Thanks Hwy menace

 

ahhh okay yeah forgot about that one coolant line, it is there to warm up the air going into the engine on cold start ups. I just connected my two lines going in and out when i put a new intake plenum on that didnt have the coolant ports on it. Im not exactly sure how the v6's are set up with that.

Okay here's what ive pulled up, its for a 2003 4.2 Thats the furthest back my information goes, but should be identical.


And from best that i can tell its all one cast piece for that.
-Patrick

 

Thanks for your research Patman. Drawing Fig 6 that you posted shows my broken off metal pipe. It is where the bigger hose on top connects to the intake. This pipe is part of the manifold. I took the part in question to the dealer. After searching the computer at the parts desk we all concluded from a drawing that the "L" shaped tube is part of the $705.00 intake. I tried to locate the manifold at our two pic n pull wrecking yards but they hardly ever have any late model trucks. I also looked a little online and found a place that sells manifold for $500.00. Now the okie comes out of me so I JB welded it. After moving some parts out of the way (heater hoses, air box contraption,throttle body,ect I put it actually in the hole. I thought this pipe broke off flush. I could push it in the hole about an inch but I pulled it up enough so the rubber hose was level. I will apply another bead in the morning. Hopefully this will hold until I can afford the new intake. I would have posted some pics of the situation but website stated I have not earned that yetjuptonjr@yahoo.com

 

You can post pics to a free photo hosting site such as Photobucket, and post links to the pics.