Question about Chevrolet C1500
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Blowing ECM-B fuses
The ECM-B fuse is a 20 amp fuse, and you should NEVER put a larger fuse in to try to overcome any problem. The oil pressure switch is a secondary concern; there is an idiot light or oil pressure guage in the dash to alert you to oil pressure problems. Under heavy load, such as towing, your engine requires more fuel, and if your fuel pump is going/has gone bad, it cannot supply the demand.
The problem is almost certainly a fuel pump wire harness short, caused by a dying fuel pump. I have both had this problem myself, and repaired it on three other vehicles. On my vehicle, the wire harness had welded itself together when the fuel pump locked up, and the wire harness caught on fire.
The fuel pump is in the gas tank (of course my tank was full), and the tank has to be dropped to access it. The wire harness is modular, with plugs at both ends, and can be bought from the Chevrolet or GMC dealer.
If you put an incorrectly-rated fuse anywhere in your vehicle's electrical system, the WORST place to do it is where you have--the fuel pump circuit. Fuses blow for a reason, and the manufacturer's engineers properly size the fuses for the application at hand. Please don't do that again.
This can be a very dangerous problem and repair, and no, it is not cheap.
Do not attempt to operate this vehicle until you have had the problem properly corrected. Good luck.
Posted on Feb 14, 2010
SOURCE: how do i reset the
Use the OBD-II scanner for 1996 and up vehicles to clear codes and shut the service engine soon light off if set. I would read the codes before doing this, though, to get a clue as to what is tripping the ECM's light in the first place.
One can get a scanner for under $100 from Sears or Walmart or get the local Autozone or Advance Auto Parts to do it for free, if they do that in your area.
Posted on Oct 13, 2010
SOURCE: 2001 chevy starting issues
Check under hood fuse box. Look for fuel pump fuse and starter relay fuse. They are both the same size. Take them out and bend the 4 prongs outward a little bit. Reinsert and try. This will help them make contact inside fuse box. This is a common problem.
Posted on Jan 02, 2012
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