depressurizing fuel rail
#1
Instructor
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about to take of the intake manifold and hence the fuel rail. What's the best way do remove fuel rail... Clarks garage says to open the end of the fuel rail and catch what's spilled.
I read somewhere that you can simply remove the fuel pump fuse, and wait for the engine to die. might cause a few rounds of detonation?!?
any comments on either method?
thanks,
Ian
I read somewhere that you can simply remove the fuel pump fuse, and wait for the engine to die. might cause a few rounds of detonation?!?
any comments on either method?
thanks,
Ian
#3
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Join Date: Sep 2002
Location: Blacksburg, VA & Northern VA
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if you just need to get to hosing underneath the intake manifold, you can leave the fuel rail attached....then once you get the intake loose, just lift up and at an angle, being carefull not to damage the two fuel hoses...this saved me some time...
#5
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I pulled the fuse to the fuel pump and let the car run till it died. then started it repeatedly. However when I pulled the old FPR fuel under a great deal of pressure sprayed everywhere. So if you do decided you need the fuel lines off undo the cap on the front and catch the fuel in a rag. After running it dry first of course.
IPSC
IPSC
#6
Three Wheelin'
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The best thing to do is put a couple of shop rags under the front end of the fuel rail and slowly "crack" open the end cap until you can see/smell gas.
Have some eye protection on, and make sure there are no open flames, lit cigaretts, or other ignition sources around.
Have some eye protection on, and make sure there are no open flames, lit cigaretts, or other ignition sources around.
#7
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I agree with Clifton. You can only get so much pressure out of the fuel rail by starting the engine with the fuel pump fuse (#38) removed or the DME relay. I still usually see about 15 psi showing on my FP gauge after depressurizing. Rags wrapped around the first fitting you remove will take care of that though.