De-pressurizing fuel system
Senior User
Joined: Aug 2002
Posts: 384
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From: montgomery city usa
On the fuel rale on the back of the motor passenger side there is a valve (looks like a valve stem) remove the cap and I use a tire gage to release the presure. Make sure your motor is cold and no flames fuel will shot out of it. No pressurer until you turn your key back on.
Rub my Belly
Joined: Jan 2004
Posts: 3,093
Likes: 1
From: Lawrence, KS
Originally Posted by RomerB2
What does the fuel rail look like?
Kinda hard to explain but if your 90 is like my 88, My vaule is on the driverside. Look on top of the engine. See where it says 2.9? That is the intake. Just below that on the drivers side there is a hollow metal rail type thing. It has appendages that go in between the intake runners. It sits ontop of the injectors and delivers fuel to them. On top of that rail sits a valve stem. Like the one for airing up tires. It should have a plastic cap on it. Unscrew it and do like 87 ford said. Use a tire gauge or a small scewdriver to relieve the pressure. A picture would be worth a thousand words about now. lol
Senior User
Joined: Aug 2002
Posts: 384
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From: montgomery city usa
My Bad I said passenger side, Thats on my fr150. The 89 BII I have it is on the driver side next to the regulator. Here are some pictures
picture with upper intake on
With upper intake removed
picture with upper intake on
With upper intake removed
Postmaster
Joined: Dec 2001
Posts: 3,742
Likes: 2
From: UT
If you don't like the idea of spraying gas on top of the engine, the usual method I've used (described in most repair manuals) is to disable the fuel pump (unplug relay, fuse, or inertia switch) and start/attempt to start the engine.
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Postmaster
Joined: Jul 2004
Posts: 3,624
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From: Bixby, OK
I think I'll spew lol, while it's depressurized I'll change out the fuel filter, anybody know where it's located on a 90 2.9L? I have a new one, just need some directions.. thanks.
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Post Fiend
Joined: Jun 2002
Posts: 13,873
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From: Atlanta GA
Originally Posted by mrshorty
If you don't like the idea of spraying gas on top of the engine, the usual method I've used (described in most repair manuals) is to disable the fuel pump (unplug relay, fuse, or inertia switch) and start/attempt to start the engine.
