So I have a 91 cutlass supreme with the 3.1... well driving home from work one night it died on me all I heard was poof (like a hose blowing off) and the car died on me when using turn the key the car turns over but won't start at all... does anyone have any ideas at all what it could be or what I should be looking for... also before this happened every now and then when I'd go to start the car it would start and then die if I didn't tap the gas pedal but wouldn't always do it any ideas would help a lot I prefer working in my own car as much as I can thanks

 

Check spark,and fuel pump pressure.

 

Based on your description of the issue, I can say with all confidence, its broke...

In order for anyone to give you further help you need to troubleshoot and answer Patricks question to narrow it down a bit. Is it fuel or spark?

 

Do you hear the fuel pump hum when you move the key to the run position? Plus, you can take coil packs to any auto parts stores and have them tested.

 

Spray some starter fluid in the throttle body... If it starts you will definitely know it is fuel related... If it doesn't start, move on to electrical system...

 

Had a friend look at it last night it turns over but won't start he said he thinks I might of blew a vacuum hose off gonna try the starter fluid and see if it starts this weekend

 

Since you need the engine running to create vacuum, don't see how that could prevent the engine from at least starting... If it would start and then stall, I could see a possible vacuum problem...

 

I do not think I would listen to your friend, but I am sure he has good intentions.

 

have your friend try starting it while you listen at fuel tank filler with cap off. If he bumps the starter you should hear the pump for a short period when the key is on.

 

turns over but does it have compression.maybe the poof was the timing chain eating its pigs!