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86 fiero fuel pump by Fieroto300zx
Started on : 12-05-2014 05:42 PM Replies : 5 (300 views) Last post by : Fieroto300zx on 12-10-2014 02:51 PM
Dec 5th, 2014
Fieroto300zx Member Posts: 58
I have a 86 fiero with a 2.5 stock and even when the ignition is off keys out of it. You can still hear the fuel pump humming what would cause this I believe it's the fuel pump relay but I wanna make sure before I start tearing into it
05:42 PM
PFF
System Bot
Dec 7th, 2014
Gall757 Member Posts: 10938
Did you pull the relay and listen for the noise? This sounds too simple...am I missing something?
11:53 AM
Fieroto300zx Member Posts: 58
I will try that tomorrow if it stops would that mean it's just a bad relay ?
10:49 PM
Dec 8th, 2014
Gall757 Member Posts: 10938
You can swap in the relay next to it to test that theory.....they are all the same.
08:36 AM
Dec 10th, 2014
sardonyx247 Member Posts: 5032
Unplug the fuel pump relay, if it is still making noise try unpluging the oil pressure sensor, (usualy the cause)
06:56 AM
Fieroto300zx Member Posts: 58
It was a bad relay I thought it was but just wanted to ask for your opinions thanks another fiero is running the roads thanks again
02:51 PM
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