Hey Scotty, love your videos! My 03 Malibu is having an intermittent CRANK NO START issue. It's not the fuel pump or filter. I replaced with OEM pump but still just doesn't start one day. Last time I did 1,000 miles before it wouldn't start again. A couple times it happened where it wouldn't start for days and then I tow it a couple blocks to the mechanic and it started right up!!! Frustrating!!! What are some possibilities if it's not the fuel pump?
It won't start after sitting a while (cold weather might actually be a factor). I've haven't had it not start after being warmed up. It doesn't have any codes right now. And only 112k on it for miles 😢
Tell me-- does it start up when engine's cold-- say, when it's been sitting overnight? Then does it not want to start when engine's warm... as when you've been running errands? If so, I'd immediately R&R Engine Coolant Temperature Sensor-- DIY-- and make dadgummed sure you buy an OEM genuine ACDelco ECT for it, no cheap Chinesium parts ok? Install it yourself. P.S. What are all your OBDII Trouble Codes?