87 Bronco 11, Fuel Rack -plastic knob
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lil_Blue_Ford
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The only plastic knob I can remember seeing on the fuel rail really is just a cap that protects the shrader style valve for checking the fuel pressure and bleeding air from the fuel lines.
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yep, that just the cover to protect the valve, that is where you check your fuel pressure with a fuel pressure gauge.
Robert
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Thanks for the explanation. I found it loose and it was causing slow & fast idle. I hand tightened it and it works fine. To day was my first day at this forum and already got prompt and good response. Thanks Guys....!!
adsm08
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Uh.....
It shouldn't be able to do that....
It's just a dust cap, no different from the caps on your valve stems. In fact i lose the one on my sister's car and put a valve stem cap on in its place. It doesn't have the ability to affect your idle speed...
It shouldn't be able to do that....
It's just a dust cap, no different from the caps on your valve stems. In fact i lose the one on my sister's car and put a valve stem cap on in its place. It doesn't have the ability to affect your idle speed...
lil_Blue_Ford
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V8 Engine Swap
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- 13,068
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- PA - USA
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- 2000
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- Ford Ranger
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- 5.0
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- Automatic
- Total Drop
- 4”
Well, it might... if the valve itself is bad and causing a fuel seepage....Uh.....
It shouldn't be able to do that....
It's just a dust cap, no different from the caps on your valve stems. In fact i lose the one on my sister's car and put a valve stem cap on in its place. It doesn't have the ability to affect your idle speed...
But yea, under normal circumstances it shouldn't affect the idle.
adsm08
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gotta love noobs.....
Dude, be nice. Not everyone is a mechanic.
That's a good point. But that cap won't hold out forever. OP might want to look into a new vavle.
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