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I have a 94 astro van 4.3l. I was having trouble with fuel pressure, so i replaced the fuel pressure reg. Now the van will crank every time, but the engine will surge when i put it in drive, and eventually stall. I also replaced the vaccum lines. I really need some expert advice. I also replaced the fuel relay approx. 2.5 years ago.

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Did you replace the fuel pump.

Posted on Oct 06, 2010

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Posted on Jan 02, 2017

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The fuel pump pressure shoud be 55-61 psi . Check for spark by removing a ignition wire at a spark plug and put a spark plug in wire and hold to engine ground and crank engine , if no spark then remove coil wire at cap and repeat.If still no spark then coil , module,,crank sensor or pickup may be the problem.
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How do you know the fuel pump is good? And I would not keep using starting fluid to try and start the vehicle. Did you check fuel pressure? Did you try to dump a little fuel down the carb then try starting?

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I have the same problem, I replaced the fuel pump. Did NOT solve it. i was told that it is a computer problem. The computer is not sending electric to the fuel pump, by cranking it several times the oil pressure builds up and will over ride the computer and send power to the fuel pump. This is a common problem on these asrto vans.

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