Why won't my truck start?

Question

ANy suggestions would greatly help...



I have a 1990 K5 Blazer.  It has the throttle body and for the first winter is being a pain in the butt to start.



I just went to start it and aftre giving it gas it died...I started it gain, gave it gas, let it idle and it died again.  On the third attempt, it died and I lost all power to the truck.  No lights, no crank.  



I removed the battery, had it tested and replaced it when it showed 100% charge.  



I looked in the fuse box on the fire wall.  The ECM B fuse is fine.  There was, however, a silver fuse which simply said PWR.  I removed the fuse, however, could not tell if it was blown.  I put in a 30 amp fuse and got dome lights.  I turned the key to start it and it half cranked then the power went again...no lights, nothing.



The 30 amp fuse was not blown...so what did I blow and what does that fuse go to?

semick_15 · Accepted Answer

Make sure your replacing it with the right amp fuse. Make sure that your ground wires and straps are good. See if you have power going to all your main power fuses with either a test light or volt meter. Do your headlights come on at all? Dash lights? Or literally nothing at all? Even a bad ground strap or cable can cause your engine to run bad because its not getting a good a ground so you don't get a good spark. There are ground straps from your engine to the frame or body usually and check the battery cables as well. When in doubt you can get a large wire or buy a ground strap and bolt one end to the engine and the other to the frame. 


Good luck hope this helps a little!

hasse_john · Answer

bad contact somewhere.   maybe ground strap.  maybe the one from the engine to the frame.

Trending News

Why won't my truck start?

2 Answers