Blew head gasket, had head machined and installed new gaskets and put engine back together. When I went to try starting it would not crank and there was no power getting anywhere. Head light, instrument panel, dome light nother would work. Checked to make sure that all was plugged back in. Jumping did not help. Now have new battery. Still nothing, no electrical power.
Look at the main power supply battery junction block . Fusible link's . Firewall driver side . These power up the whole vehicle . Do you have a voltmeter ,do you know how to use one to test B+ voltage ? Here is a web site for free wiring diagrams . http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make ,model and engine size . Under system click on electrical distribution ,under subsystem click on power distribution . Click the search button ,then the blue link's . Look at the diagrams ,get out the voltmeter an test for B+ voltage where it's suppose to be.
SOURCE: how do i replace value cover gaskets on a 2001 cadillac deville
If you have your intake manifold over your valve covers you need to remove them. once they are off carefully disconnect as many hoses from the covers as you can and try to mark them so you can remember where they go. next you take your ratchet and remove all of the bolts from the valve cover. Take it off and get as much crud off of the surfaces that the gaskets seat onto as you can. next you take a tube of BLUE RTV and apply a thin bead to all of the surfaces that the gasket will seat into. Put gasket onto it's place on engine block, then affix the valve covers on top of that. Replace bolts and intake manifold if applicable and you are done. Note; follow instructions on the RTV tube or you will develop leaks all over the place.
SOURCE: leaking valve cover gaskets
The problem is over tightening.
If you over tighten your fastners you will sqeeze your gaskets too much and they WILL leak.
You can use black silicon sealant LIGHTLY but you don't really need it. If you have the V6...the torque on them nuts are only 80 in lbs each
SOURCE: started with head gasket problem, tried to flush system..
You more then likely have more then one issue. You can pull the plugs to see if the engine is hydra locked, It sounds like you lost power so check that the battery is still fully charged, check the connections at the battery, engine block, and starter. Sounds like something just got wet or it was a coincidence. I never suggest to anyone, the use of stop leak.
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