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Old 03-24-2015, 08:00 AM
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CRCRFT78 CRCRFT78 is offline
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Default Engine Won't Start

I can't seem to figure out what the problem is so I thought I'd see what some of you think. Its a 78 Malibu with an LT1. Fuel gets all the way to the fuel regulator but won't go passed that point. I replaced it with a new fuel regulator and still no fuel into the fuel rails. There is pressure up to the regulator but not enough it seems to go any further. I don't hear any difference in the fuel pump (which may not mean much) but myself and 2 buddies are stumped. Anyone experience this or have any suggestions?
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Old 03-24-2015, 09:40 AM
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did you crack a line on the output side?? If the motor isn't running == the injectors are all closed so you might have air lock if its a closed (non return) system.

So crack a line to the rail -- or at the regulator and see if you have any luck with that.
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Old 03-24-2015, 09:49 AM
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Isn't the stock regulator on the return side after fuel flow through the rails?
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Old 03-24-2015, 10:05 AM
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Jose, was this running before or a fresh build?

you have some plumbing issues i think.
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Old 03-24-2015, 02:05 PM
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It was running and then I parked it for a year. Pulled it out, checked a few things and went to start it. The fuel line had a bad leak (steel braided hoses), switched out the feed and return lines to hard line ran along the frame rail. Then ran steel braided line from the motor down to behind the front passenger wheel to the hard line. And steel braided line from the tank to the front of the rearend to the hardline. I have pressure up to the fuel regulator and nothing after that. Would removing the lines, allow air into the system creating air lock at the injectors?
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Old 03-24-2015, 02:15 PM
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Quote:
Originally Posted by CRCRFT78 View Post
It was running and then I parked it for a year. Pulled it out, checked a few things and went to start it. The fuel line had a bad leak (steel braided hoses), switched out the feed and return lines to hard line ran along the frame rail. Then ran steel braided line from the motor down to behind the front passenger wheel to the hard line. And steel braided line from the tank to the front of the rearend to the hardline. I have pressure up to the fuel regulator and nothing after that. Would removing the lines, allow air into the system creating air lock at the injectors?
It should bleed out. Certain the lines didn't get crossed? What is the pressure up to the regulator?
Have to ask.
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