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Ask Wrenchtech Your Own Question
Wrenchtech, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1403
Experience:  40 years experience with ASE certification as Master Technician with L1--Repair Shop Owner
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where is the fuel pump fuse on a 1988 chevy truck

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Submitted: 8 years ago.
Category: Chevy
Expert:  Wrenchtech replied 8 years ago.
The power for the pump itself comes from the "ECMB" fuse.

The trigger power for the fuel pump relay comes from the ECM which gets it's power from various fuses.

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Customer: replied 8 years ago.
what is the ECM? is it in the distributor?
Expert:  Wrenchtech replied 8 years ago.
Engine Control Module but the fuse should be labeled ECMB.

You could simply test the orange wire at the oil pressure switch with the key on. If it has power, the fuse is good.

I just noticed that some models use a fusible link instead of the ECMB fuse. That should be at the starter.
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