ok so i took my truck into ats to get the a5k headstuds and injectors and a tranny service. got the truck back today because they ordered the wrong injectors so they told me i could drive it cuz im busy till next tuesday when they would have the injectors and do the studs, i was able to boost like 43 psi and was pleased, i have not taken it over 80 mph. i was driving around doing errands taking it easy just crusin, and i noticed my oil press. was reading 0 and even if i got on the throttle it would stil read 0. then it started sounding like the converter or something in the tranny was grinding. so i pulled over and poped the hood, i have 0 coolant and the oil dipstick says im full . there is no noise from the engine at this point and were prolly about 6 miles away from ats. i decided to limp it back to the shop and have them look at it. so on the way i was leaving a lght an noticed the grinding noise would not happen if i was just coasting , when i got on the gas even a bit it would grind but would not if i was not putting any power down. then down the road a bit i heard something break and i was starting to slow down. so i got on the throttle a bit to get my speed back up with traffic and no responce. so shortly after my gradual throttle climb im to the floor just dumping smoke ( stil black ) but not gaining any power or boost. and i got of the throttle again.. thinking to myself whats going on ? and it started to die. so i put it in neutral, turned it off and coasted to a stop .. checked under the hood again and everthing seemed fine less. the coolant not being in the resivoir.. the truck was not overheating in any way. so i let it sit for 10 minutes and tried to start it again, and it started cranking like it was really cold.. just seemd hard to start.. it started briefly and sounded horrible.. and died.. then would not start again. i cannot think of anything with these symptoms .. not overheating.. 0 oil pressure.. no coolant.. plenty of oil. and that grinding noise.. please if u have heard of anything let me know.. did i lift the head cuz the a5k and no studs? did i do that and something else to the tranny???? im going crazy!! god bless.

Its possible you lifted the head, take it to ATS im sure they will help you.

i hope thats what it is

Lifting the heads will not loose oil pressure.You should of never tried driving it til you made sure the oil pump did not take a crap on you.Might of cost yourself a motor build and a turbo burnt up since you had no oil pressure.Good Luck

well we will find out , i sure hope thats not the case.

The best of luck to you, Is it at ATS now? shame you could not of cracked the oil supply line to the top of the turbo to see if you had oil moving.