1992 K1500 5.7L While Driving Loud Bang and All Dead.
 

1992 K1500 5.7L
While Driving Loud Bang and All Dead.
My wife took the truck for a food run and never made it back. She said the
truck made a loud bang from under the hood and she lost steering and brakes.
I assume the engine quit.
I am trying to figure out what went wrong so I can repair it myself before
winter as I cannot afford to take it to my local garage right now. Anyway
the battery was extremely low when I met my wife at the side of the road,
probably from her trying to start it. The injectors are firing and it seemed
to want to start for a minute while cranking with the last of life from the
battery. I am assuming good spark and timing and from the bang figure it
might be a timing chain. Truck mileage is approx 135k. Seeing how tomorrow
is Sunday I plan on going up to the lot and cking things out a little
further.
How can I tell if the timing chain is indeed the culprit? It did not seem to
turnover very fast as I would think it would if the chain were broken.
If remove the cap and verify that the distributor turns when cranking, does
that mean the chain is good?? I am not sure what the distributor runs off of
the cam or oil pump shaft?

Thanks for any advice in advance!! This has always been a great newsgroup.
Whoops my nose got brown.....
Thanks
JRE