i havh this one a squeiling sound coming from the engine compartment. which causes the engine to stall out while at idle and while driving. also the check engine light wasn't on till after it started stalling. i don't know where to begin with this one. thanks any help would be great

 

Could be the A/C compressor siezing up causing the belt to squeal as it's being forced over the pully. The added load will cause the engine to stall. I would check the A/C clutch and compressor for starters.