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Fixed passlock now no fuel, 99 blazer Lt 4wd

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  #1  
Old 05-23-2022, 06:45 AM
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Default Fixed passlock now no fuel, 99 blazer Lt 4wd

Really confused,I fixed the passlock issue but now the fuel pump will not run,I don't think it would just go out but the truck has sit awhile, thought said just changing the pressure sensor I have an extra one on hand, this is my project truck and it ran till I had to change the switch, that made me have to fix the passlock now the security light is out but the fuel pump isn't running. Any help at all will be very appreciated thank you
 

Last edited by Gashouse5150; 05-23-2022 at 06:46 AM. Reason: Missed info
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Old 05-23-2022, 07:21 PM
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The two are not related. A passlock fault defeats the fuel injectors but leaves the fuel pump alone.

Lets get your fuel pump circuit fixed. Get a voltmeter on the fuel pump priming tab in the fuse box and see if you get 12V for a couple of seconds at key on.

George
 
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Old 06-04-2022, 07:32 PM
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Does this model have one of those "rollover" switches that is supposed to kill the fuel pump in case of a serious accident? I have heard of people accidentally tripping it while doing electrical work of various kinds. It's a simple reset button.
 
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Old 06-06-2022, 02:50 PM
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Originally Posted by BlueRidgeMark
Does this model have one of those "rollover" switches that is supposed to kill the fuel pump in case of a serious accident? I have heard of people accidentally tripping it while doing electrical work of various kinds. It's a simple reset button.
I think that's mostly a Ford thing.
 
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