Royale 88 Oldsmobile 93 model will crank, runs a few mins. Then cuts off. What could be the problem?

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Watch Scotty Kilmer's videos on checking for cylinder head gasket leaks. Always diagnose, don't guess based on bubbles which can be caused by air sitting in the cooling system.

https://www.youtube.com/@scottykilmer/search?query=how%20to%20test%20cylinder%20head%20leak

Head Gasket replacement is not for the faint hearted. You need a good set of tools and a torque wrench. And whilst you are in there, you might as well check and lap (fine grind) the valve mating surfaces. You can also get additives that can seal SMALL and I mean small, cylinder head leaks. Scotty Kilmer has videos on that as well.

https://www.google.com/search?q=1992+oldsmobile+delta+88+royale+replace+cylinder+head+gasket

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Question moved to model category.
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1984-85 Oldsmobile Delta 88 Stereo Wiring - The 12 Volt

the12volt.com https://www.the12volt.com > installbay > stereodetail
1984-85 Oldsmobile Delta 88 car stereo wire colors, functions, and locations.

Missing: 1982 ‎' Show results with: 1982

Oldsmobile Wire Diagrams and Wire Codes

Car Stereo Removal https://www.carstereoremoval.com > htm > WireCodes...
With aftermarket stereo installation? GM Wire Harness Diagram, Wire Color Codes and Pin Configuration, Wire color codes and wire diagrams.

Wiring diagram to replace radio in a 1990 delta 88?

Fixya https://www.fixya.com > Forum > Cars & Trucks
Apr 9, 2009 - Wiring diagram to replace radio in a 1990 delta 88? - Cars & Trucks question.

1986 Oldsmobile Delta 88 Car Stereo Wiring Guide

modifiedlife https://www.modifiedlife.com > 1986-oldsmobile-delt...
Our automotive wiring diagrams allow you to enjoy your new mobile electronics rather than spend countless hours trying to figure out which wires goes to which ...

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Buy new, because they are a pain to change in the fuel tank. Plus if you are intending to buy a used one there is no guarantee if it works, its pressure or how long it will last?

Oldsmobile Delta 88/Royale OEM Replacement Fuel Pump ...

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TREperformance sells Stock OEM Replacement Fuel Pumps for all Oldsmobile vehicles including the Delta 88 Royale. These OEM replacement pumps will fit any ...

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as another here said ..... locate your evaporator inlet outlet lines usually coming out of the fire wall. then follow the line that runs to the compressor. that is your low side line and the service port should be on that line

This happened to my 95 Royale while driving around town. I checked the battery terminals and one was slightly loose. After tightening it, no more dying.

So the ac is not working. Is the compressor running when you have the control set for ac ?

Fuel Pump--a possible problem

Here's a link to the serptentine diagram for our '94 Olds 88 Royale...

http://www.gates.com/common/part_locator/view_diagram.cfm?id=S6005

check battery and connections. if all are good check all fuses under the hood and dash

Try turning the key to the on postion-not crank, just to he postion right before cranking. leave it in that postion for 15 min, Do this three and after the third time go ahead an try to start it. Hopefully this will reset your security for you.