* NO POWER AT ALL *

[bojangles33]

Need some suggestions here... Truck was running fine, go get in it today and it is COMPLETELY DEAD... nothing... like the battery terminals were not connected. I checked all the terminals and everything is fine and clean. I've been reading about the CPS but i dont think that would cause it to lose all power together. The damn headlights wont even come on. I tested the batteries with multimeter and both are still good to go. Maybe a fuse? .. any suggestions would help.

thanks

[JSchuricht]

Doubt it's a fuse if everything is dead. Start tracing the main power wire from the passenger side battery to the relay on the fender to the distribution box on the drivers side. I am betting you will find a bad terminal or broken wire.

[7.3HeavyHauler]

exactly i would disconnect the batteries first then do the tracing, it would really suck if it was a broken wire and you grounded it out by accident, 1900 amps or whatever your 2 batteries are combined make one hell of a fireworks display.

[bojangles33]

traced and tested all the wires coming from the batteries, everything seems ok. The only 2 issues i can see it being are the CPS (which is being a REAL PITA to get out, so apparently it hasnt been changed in a while) or the other red flag is that there is no power on the red wire coming out of the starter relay...but not sure if that would only show positive when i try to start the truck... this is so frustrating. Any help or suggestions would be appreciated...just so weird that everything was fine ..no ZERO power to anything...has anyone ever had CPS go bad and lost ALL power (headlights, interior lights, no gauge lights..everything???). Also checked the fuse panel , seems fine. nothing appears to be blown.

[NoRalPh]

You didn't post what year your truck was, always important....

If it's an '01 or above, with a Trans Temp Gauge in the Instrument cluster, look at this connector ->

POTENTIAL ELECTRICAL CORROSION if your truck is like mine......

[bojangles33]

sorry ...its a 2002. i will check that now. thanks

[bojangles33]

NORALPH.. u r the man...connection was corroded to hell...wire ended up breaking as soon as i touched it. Thanks again man! Hopefully i can re-rig this connection up and shes run once again!

[NoRalPh]

Glad you found it! I described how I redid mine (with a split-bolt connector, grease & shrink tube) but anything that makes a tight connection and makes it waterproof will work fine, I'm sure...

[bojangles33]

just tried touching the connections together and boom...POWER TO EVERYTHING again!!!!! you should have seen the smile on my face! Now... i gotta try to rig something up to re-connect this thing...Noralph, can u send or post a picture of how you did urs?

[bojangles33]

ok, ya been looking at the split bolt connectors. I'll go get one now. I havent cut the old ones yet. Are there 2 main lines or just 1? my is so corroded its hard to tell.