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1996 502 xltno start

L

lugnutdan

Contributing Member
I have a 1996 Trojan express with 502 xli port engine will not start, no 12 volt, checked both relays,cleaned distributor ,got 12 volt engine
ran fine,next day tried to start no start,no 12 volt to fuel pump I do have spark.

Can anyone help???
 
It helps us if you state clearly what's going on - "no 12 volt" doesn't convey a lot of information.

Lack of battery voltage to the fuel pump suggests the oil pressure safety switch has failed....assuming the fuel pump relay is good.
 
Sorry I have 2 buttons, first button powers ECM and fuel pump with 12 volts,I am not getting any 12 volt to fuel pump batteries are all good,
engine turns over easily and I have spark,just no power to fuel pump,also I did not think oil pressur e switch could do that on a 502xli
 
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