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Dennis LaGrua
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MAY 22, 07:52 PM
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| quote | Originally posted by Lou6t4gto:
today it's primes, starts right up and runs ! tomorrow..... we'll see . LOL |
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Almost a sure sign of an intermittent connection. Check the fuel pump connector on the firewall, the relay and the connections to the relay.
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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Lou6t4gto
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MAY 23, 01:55 AM
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already checked and rechecked connections, took apart/ cleaned etc. must be "missing" something
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fierosound
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MAY 23, 07:46 PM
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| quote | Originally posted by Lou6t4gto:
already checked and rechecked connections, took apart/ cleaned etc. must be "missing" something |
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Has fuel pump ever been replaced?
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Lou6t4gto
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MAY 23, 11:16 PM
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also new, pump, hose, wires, sender.
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fierosound
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MAY 23, 11:45 PM
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Next time when fuel pump is not priming, you'll need your voltmeter to figure out if
ECM is powering relay and take it from there until you find where the power stops.
You may have to do some "wiggle wire" tests to find an internal break in a wire.
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Lou6t4gto
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JUN 11, 02:06 PM
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for a week it worked perfectly. (Normally). Now no more" priming" Again, BUT , This Time there is No Power to the "Lighter" anymore either !!!! (so I cannot jump the aldl to prime it using the lighter). I had to jump it with the + wire from the lighter "LIGHT" ! then it will start, but NOT keep on running ! really kills me, this is an excellent "Looking" (in and out) and "Running car" Low mile car, except for this "fuel pump power thing" . :-(
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Lou6t4gto
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JUN 11, 04:10 PM
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went out today with my trusty multi gauge and test light. got in the car, turned the key on, AND IT PRIMED AND STARTED PERFECTLY. even the lighter works again ! I think I need to hire an EXORCIST !
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fierosound
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JUN 11, 05:39 PM
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Just wondering about the ignition switch now that you mentioned the lighter had no power.
It's on the same fuse and circuit as the radio.
Ignition switch controls almost everything at start including fuel pump relay (through ECM)
 [This message has been edited by fierosound (edited 06-12-2020).]
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fierosound
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JUN 11, 05:41 PM
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Lou6t4gto
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JUN 11, 06:14 PM
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CD works fine. and now Without "touching" ANYTHING, it ALL works properly. (for Today anyway. LOL
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