How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GMTechBernard Your Own Question
GMTechBernard
GMTechBernard, Shop Foreman - GM World Class Tech
Category: Chevy
Satisfied Customers: 2158
Experience:  GM
6758627
Type Your Chevy Question Here...
GMTechBernard is online now
A new question is answered every 9 seconds

No Comment Added

Customer Question

No Comment Added
Submitted: 8 years ago.
Category: Chevy
Expert:  GMTechBernard replied 8 years ago.

There are a handfull of circuits that come off of the ECM-B fuse, so you will need to inspect the wiring from the fuse box to the ECM, to the oil pressure switch and back to the fuel tank. You will need to look for places where the harness can rub on something or is being pinched by something.

If a visual inspection does not reveal anything, you may want to drop the tank and look at the fuel pump (the main component on this circuit). This is the #1 cause for ECM-B fuses blowing, but don't overlook the obvious before you drop the fuel tank. Either the pump goes bad and pulls excessive amperage, or the wires going from the sending unit to the pump melt together causing a short circuit.

Please let me know if you have additional questions!

 

graphic

Related Chevy Questions