Just picked up a 94 Deville, my problem: The car starts fine, after driving for awhile and turning it off it wont restart untill you let the car cool of for 20 or 30 min.? Is it a eng. block ground problem?

Eliminate the battery first; make sure it can pass a load test and does not have a shorted cell. You can also use a 5/16" wrench to tighten the terminals: first, disconnect the negative cable. Then remove the (+) cable. A light scrape with some 120-grit sandpaper or a file on both surfaces should put you right. Reattach and do the same with the (-) terminal. If these steps do not eliminate your problem (and/or if the battery passes the load test), make sure it is fully charged, and then investigate grouding/starter problems. You could also have a starter that is slowly letting go...eventually it will leave you stranded (I've had this happen...it went from intermittent no-starts to no start!)

help i just bought a 1994 sls and it died and has no spark any ideas

no spark when cranking just started replaced crank sensor cam sensor spark cont mod in ready to flip out

help me yall