2004 Cadillac Deville "fuel pressure" Questions

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...fuel pressure an it should have 40 to 50 pounds why is the fuel pressure so high? Fuel pressure regulator . plugged fuel return line . With the ignition switch ON and the fuel pump running, the fuel ...

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Question about Cadillac DeVille

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Has fuel in the rail, but fuel pressure guage is reading zero Are you sure the injectors are spraying if the pressure is zero ? Have you checked the fuel pressure regulator ? Are the spark plugs dry

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Question about Cadillac DeVille

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...filter pressure when i push on gas pedel it dose not getting any fuel sound like fuel filter plugged fuel pressure should be 41 - 47 psi.4.6 engine for 4.9 engine fuel pressure should be 41 - 50

...Fuel pressure regulator is a good place to look. look at the extra injector that enrichens the mixture on a cold engine too. Connect a fuel pressure gauge in the fuel line, note pressure ,turn off ...

Question about Cadillac DeVille

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...fuel pressure and dies. Hi! tpeterson277 Fuel Filter. Sorry I have not worked on this exact model but usaly mounted near fuel tank or on frame rail. Purchase a new filter and check fuel lines. May ...

Question about Cadillac DeVille

1 Answer

...fuel pressure reg apart and cleaned it all up and bought a rebuild kit... still doing the same thing. is this a weak or bad fuel pump or a clogged fuel filter? or something else most likely (in the ...

...fuel pressure problems. 4.5 liter. have pressure guage on rail. sometimes have 35 ish psi for about 10- 15 sec then nothing. thought about jumping relay to take it out of equation but cannot find ...

Question about Cadillac DeVille

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...the fuel pump i agree replace the fuel pump and the fuel filter also it should have aleast 40 or even more psi of fuel pressure to start engine change fuel pump not enough pressure to trip ...

...fuel pressure regulator in my 92 sedan deville and now i get worse miles per gallon than before ive had my caddy a while now and at first was getting 16 to 20 mpg in town but as of lately it had ...

...and wiring-connections if good than pump gone if hum check for pressure no pressure turn off and open gas cap i hiss than pump pressurizing change fuel filter than try fuel again if starts ...

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