| Author |
Message |
    
Curtis Couch (Couch)
| | Posted on Monday, April 29, 2002 - 11:53 pm: | 
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Sorry it took me so long to get back to you guys, but I have been pretty busy. Anyway, I have (to the best of my ability) checked the injectors, per JP's instructions, and now - I do not think that the injectors are the problem. To add to my above comments (Curtis C.) I will elaborate on the fuel pump pressurizing or lack-there-of. As I turn the key, the fuel pump does not pressurize like any I have heard before. After turning the key to the first aux. position, I do not get the "ticking" noise that I have heard from my other vehicles - as the fuel pump pressurizes the fuel rail. Instead I get more of a "jolt" that sounds/feels more like I turned the key slightly - to start the ignition. I am pretty sure that this would have something to do with the fuel pump being/going bad, but seeing as I do not have the TIME/$$$ to waste on a hunch, I would like some "insurance" on my thoughts. You guys/gals have saved my butt many times in the past and any feed back would be appreciated. Thanks in advance.
Curtis. C |
Jon Williams (Jonw)
| | Posted on Tuesday, April 30, 2002 - 12:13 pm: |
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Look at Mike Rupp's "Hard Starting when Cold" post. I put some stuff up there that would be excessive to retype LOL Maybe you'll find some tips that will help there.
As for the fuel pump, when you turn the key to the "on" position, you'll hear the click of the main relay. Turning forward to the "run" position brings more of a mellow "thunk" as the fuel pump relay energises and the pump does its pre-start pressurisation. You'll hear a faint hum for about 2 seconds, then off. |
Rob Choromokos
| | Posted on Tuesday, April 30, 2002 - 09:59 pm: |
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My 95 is doing the exact same thing right now. Haven't found the source of the leak down yet but will. Jon's description of the fuel pump relay function is right on. Problem is with our engine's is the 2 sec is not enough to pressurize an 0 psi fuel rail. Therefore it takes a couple key turns on the ignition switch (2 sec intervals)to get the fuel rail up to the ~38 psi. Mine always starts on the 3rd. If the engine is running, the fuel pump relay is good. Please post when you find the source, I'll do the same. Logically the leakdown can only occur in one or all of these three spots: injectors, fuel regulator and backflow through the fuel pump on shutoff. Visegrips and pressure gage should find the answer.
robc |
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