I hope all is well to all! Beautiful day here in Illinois. I have problem with a newly purchased 92' chevy 2500, 6.5 turbo. F in the vin. I purchased it on a nice warm day and drove it home , around 100 miles. No issues except transmission when cold shifts veryhard! After warm up shifts good! So monday this week i drove for first time after drive home , and it was hot out, say 90 ish. And it started fine and i drove say 12 miles and at location it was idling for maybe 10 minutes and when i moved it and braked hard it stalled. Wouldnt restart. Waited a few minutes and it did start, when i went to move it seemed to surge a bit. Then got on the road a 1/8 mile and it stalled while driving. After few minutes it restarted (had hood open) drove say 10 miles, came in to town and it stalled three more time (same as before). Finaly got it home!! Tests i have done 1- fuel pressure at T drain line cranking is say 7-8 psi. Running it drops to 3 psi at idle and at 1500 rpm it goes below 2. I disconnect the suction side of lift pump and put hose in a bucket of fuel no change. My question is will the values of th lift pump cause the stalling and very hard restarts that day? Starts fine now st my shop. Thanks for any hepl!!! Sorry for so long a post!!!!