Which engine?
You failed to list which engine. There are two. The 3.1 & 3.8 V6. Click link below and choose your engine.
Where is the knock sensor located on a 1992 buick regal
The 1992 Buick Regal GS The 3.8 liter V-6.
where is the drain plug for the radiator on a 1992 buick regal custom
how do you open the hood on a 1992 buick regal if the cable is broke
Check under related links.
My turn signals are not working on my 92 buick regal.
The camshaft position sensor on a 1992 Buick Regal looks like the end of a ratchet.
On a 1993 buick regal it is on the side of the radiator.
1-6-5-4-3-2
On a 1993 buick regal it is on the passager side of the radiator. Hope this helps