Guys, 2000 4.3L engine with the fuel pump going on the fritz. It sounds similar to this problem https://www.performancetrucks.net/fo...+won%27t+start. The fuel pump was replaced and worked for about 10 starts and then won't even prime when the key goes to "ON". Found this harness (attached) was getting hot and the 2nd prong had a burnt spot on it. Of course this wire traces back to the hot wire on the fuel pump. For the short term the connector was cleaned up and plugged back in and that worked, but that wire is still getting hot/warm?? This is the harness that the plug on the pump plugs into. Why would this wire be getting hot? Any idea?

Thanks guys.

 

no one?

 

I'd guess the pump is no good or your fuel filter is clogged. Pump working harder will cause it to draw more current (making wire hot). I know a common failure is the wiring on the pump but I have not heard the harness getting hot.

I think you would blow a fuse if you had the wrong harness.

 

Check, or just replace the fuel filter. Always check the fuel filter first in a fuel related issue. It is the cheapest fix. It may not be the issue, but I would start there first.

 

Fromm 99 To 02 Gm Had A Problem With The Wireing Horness The Claim When Your Pump Burns Out U Should Ckeck The Wires At The Plug The Start To Melt Together And All U Have To Do Is To Replace The Plug.

 

Most new ac delco pumps that u get from autoparts stores r coming with a replacement harness to wire in.