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I got no power on all my chevy van 91 since i change the generator i supposs i burn a line fuse

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Sounds like you forgot a wire on back of alternator. Or it came loose

Posted on Jan 02, 2011

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1998 chevy astro van ecm II fuse(20amp)burn out continually


The first thing you should do is to locate the oil pressure switch/sending unit.


This switch serves two functions.

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===

When this switch is failing to provide the correct pressure to the ECU. The wiring harness can overheat and eventually create a short.

ECM2 fuse blow is because the harness is grounding/shorting.

===

DO NOT drive the truck until you change the oil pressure switch.

After you change the switch,you should spend sometime to inspect the wiring between the fuel pump relay,ECU and fuel pump.


Please post up day on the comment window/page.

I will follow up on it later.


Good luck.

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