Need to see a image of how plug wires go on a 1992 oldsmobile 88 royale

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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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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 ...

try spark plugs and wires a broken catalyzer will also leave you with out power

This is an explanation of the entire ignition, but includes wiring for the V8 Ignition Systems Short Course CarParts com

follow this link and register ,its free , enter vehicle details and i'm sure the info you require will be there,bookmark it for future use
Firing order and Distributor

1989 Oldsmobile Delta 88 V-6 firing order is 1-6-5-4-3-2
see image below for spark plug wire orientation:
Good luck hope this helps!

The diagram is very helpful from top to bottom coils 63 52 14 and cylinder firing order while looking at the belt facing the belt from the front right hand side 1 to the back side 2 to the front middle three to the back middle 4 to the front farthest 5 in the back fArthest 6 .

check your wiring harness that plugs into the coil pack and see if the wires are melted or showing. i have a 92 and the wires melted together and it was doing the same thing and it also could be your coilpack or your ignition control module (icm)

You might take a close look at all your vacuum hoses for a leak or crack. This problem will cause the RPM s to run high.

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.