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#1
09-20-2014, 08:18 PM
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Here we go again!! Shut off
Ok so today very similar situation as before turn out my street punch the gas hit first hit second go to hit third boom shut off on me. Gas is pretty much full 2 lines away from full about 7/8 full. Come to a crawl pump the pedal start it nothing. Crank it for a few hit the gas once turns on drives fine. Not punching the gas but getting on it and it's fine hit it so all 4 barrels are open does it again. Do you think I need a bigger fuel pump? Some adjustments needed for my carb?? I am lost now is this a sign of vapor lock?? My fuel gauge is reading 3-4 psi idle no clue what it is at WOT. But something is not right
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2005 dodge magnum daily driver 1988 mazda rx7 LS6 swap 1969 SS work in progress 
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#2
09-20-2014, 09:08 PM
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Check float levels.
Replaced the fuel filter lately?
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2017 Camaro RS -217 cu in 365 HP w/8 speed auto 1967 Camaro SS -5.3L LS w/4L60E & 4.11 12 bolt 2019 Cadillac XT5 3.6L V6 w/310 HP & 8 speed AWD
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#4
09-20-2014, 09:34 PM
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What carb?
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2017 Camaro RS -217 cu in 365 HP w/8 speed auto 1967 Camaro SS -5.3L LS w/4L60E & 4.11 12 bolt 2019 Cadillac XT5 3.6L V6 w/310 HP & 8 speed AWD
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#6
09-21-2014, 07:12 AM
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Engine off, car level...take the screws out of the side of each carb bowl and note the fuel level. Should be just to the bottom edge of each screw hole.
https://www.youtube.com/watch?v=ge-mIk6nEYQ
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2017 Camaro RS -217 cu in 365 HP w/8 speed auto 1967 Camaro SS -5.3L LS w/4L60E & 4.11 12 bolt 2019 Cadillac XT5 3.6L V6 w/310 HP & 8 speed AWD Last edited by BillsCamino; 09-21-2014 at 07:15 AM.
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#8
09-21-2014, 09:24 PM
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so i was talking to a friend of mine and he said he is going to swing by and help me out and look at the floats with me. the only issue he has was looking at my car and i started it up and went for a spin. and we did the same thing WOT first second as soon as i hit the clutch to go to third it shut off. crank crank crank stop hit the gas crank and go. so he had me rev it up to about 4000 rpms and he noticed my fuel pressure was still sitting at 3 psi. He now thinks that my fuel pump might be to weak for my 750 DP. he told me its time to go to an e pump or find a high volume mechanical pump to be sitting at about 5-7 psi at those higher rpms. thoughts?
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2005 dodge magnum daily driver 1988 mazda rx7 LS6 swap 1969 SS work in progress
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#9
09-21-2014, 10:15 PM
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Sounds like fuel supply to me to. If you want a electric pump fine. But i never had any issues with mech pumps. And I have had some silly engines.
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#10
09-21-2014, 10:35 PM
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Replacing a mechanical pump is cheap, I would try that first.
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Ray 1970 SS Chevelle Van Nuys Built
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