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Author
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Topic: NEED HELP/opinion on my 03mach1 problem starting
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1.mach.8.u
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Member # 13869
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posted
 
 
Any opinion helps before I give up and take it to a shop
I did a 03 mach1 swap on my fox all of a sudden few months later didn't want to start so I would put carb cleaner threw the vacuum line and it start so they said the fuel pump is going out, so one day it left me stranded did not want to even turn on with the carb cleaner, got it towed, so I dicided to put a 04 cobra fuel pump (used)worked fine after,a few days later it does the same thing, fuel pump turns on,no fuel going to the motor, but I wait like 20m and turns back on and runs perfect but then sometimes I turn it off does not want to turn back on,but I can here the fuel pump, changed the fuel filter too, sometimes it turns on but it acks up does not want to turn on, what might be the problem, thanks guys if I can get some help, I'm new to this modular motors
[ 2015-02-01, 10:25 PM: Message edited by: 1.mach.8.u ]
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1990 Cobra Clone
W/ nitrous
Posts: 198 | From: NOR⭐️CAL | Registered: Dec 2014
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LETHL 03
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Member # 5401
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posted
Fuel pump relay?
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RIP Willie Guzman LQ9SN95
Hard Head Muscle
#HHM #babydickcobra #lethl03
Posts: 4128 | From: 702 HHM | Registered: Feb 2005
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1.mach.8.u
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Member # 13869
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posted
Well I I think if it was the fuel pump relay, fuel pump won't turn on but it does but no fuel goes to the fuel rails, unless if the relay is the issue but that is what I think,
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1990 Cobra Clone
W/ nitrous
Posts: 198 | From: NOR⭐️CAL | Registered: Dec 2014
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i
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Member # 12534
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posted
quote:
Originally posted by LETHL 03:
Fuel pump relay?
Thinking the same thing
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86 Caged Coupe 5.0
91 Salvaged Coupe
Posts: 1901 | From: Sacramento | Registered: Nov 2012
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1.mach.8.u
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Member # 13869
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posted
quote:
Originally posted by i:
quote:
Originally posted by LETHL 03:
Fuel pump relay?
Thinking the same thing
I'm going to check into that then thanks
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1990 Cobra Clone
W/ nitrous
Posts: 198 | From: NOR⭐️CAL | Registered: Dec 2014
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NK2186
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Member # 12319
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posted
Did you replace the fuel filter?
If you do not have pressure at the rail this means you either have a clogged fuel filter, weak pump, pinched line or possible a wiring (most likely a ground) issue.
Try jumping the fuel pump and seeing if you get consistent pressure. also inspect all the hard lines under the car for kinks
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90 LX 5.0 - Stolen/stripped
89 LX 5.0 - Stolen and missing as of 7-24-13. LIC# 4HIP151 :(
99 Cobra
00 Exploder
Posts: 400 | From: Haystack | Registered: Aug 2012
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1.mach.8.u
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Member # 13869
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posted
quote:
Originally posted by NK2186:
Did you replace the fuel filter?
If you do not have pressure at the rail this means you either have a clogged fuel filter, weak pump, pinched line or possible a wiring (most likely a ground) issue.
Try jumping the fuel pump and seeing if you get consistent pressure. also inspect all the hard lines under the car for kinks
Yes I did change the fuel filter now I'm going to see if the pump has the same voltage as when it does not want to turn on, and check out my fuel lines and everything els thanks man
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1990 Cobra Clone
W/ nitrous
Posts: 198 | From: NOR⭐️CAL | Registered: Dec 2014
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