2000 K2500 suburban 6.0 liters

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  #1  
Old 03-23-08, 02:03 PM
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2000 K2500 suburban 6.0 liters

hey guys happy easter, i have a question for you how do you test the fuel pressure regulator again?
 

Last edited by LouBazooka; 03-23-08 at 03:24 PM. Reason: typo
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Old 03-23-08, 02:22 PM
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There are several ways to test it but the easiest way is hook up a fuel pressure gauge to the fuel line/port, engine at idling in Park, notice the fuel pressure reading at idle, then disconnect the vacuum hose at the fuel pressure regulator, the fuel pressure reading should read higher (couple lbs), make sure there's a good vacuum at press. reg. hose.
 
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Old 03-23-08, 02:31 PM
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thnx thts a good answer do you think i need a special tool to check the fuel pressure at the rail
 

Last edited by LouBazooka; 03-23-08 at 03:31 PM.
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Old 03-23-08, 02:48 PM
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Install a fuel pressure gauge J-34730-1A or its equivalent at the fuel rail (looks like a valve stem (shrader valve))

System fuel pressure at the pressure test connection should be 379-427 kPa (55-62 psi).

Also, when fuel pressure regulator goes bad they tend to draw fuel thru the vacuum tube (leak at pressure regulator).

Example of fuel pressure gauge http://www.exoticperformanceplus.com...html?item=1089
 
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Old 03-23-08, 03:30 PM
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I played with it a little and it seems like it was stuck, pushed diaphragm ( on metal washer of course ) and got it to move when vacuum applied ( by mouth ha ha ) but yes I'll need one of these fuel pressure gauges thank you, truck seems to fire up much better now, I don't have to crank it like before, it just starts right up just like my other chevys .
I'll see how it goes for a couple days and if it does it again will replace regulator.
Thanks again
 
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