I'm trying to locate the oil pressure switch on my 1981 6.0 Deville.

 

sounds like the car has had a transplant..... 6.0 liter????.... if im thinking right 1981 had the 4.6.8, and i believe that to be a HT 4100....... that being said... its probobly a 5.0 liter, and that switch is on the left, or right of the head somewhere.

anybody, if im wrong .please let me know
rickyd

i stand corrected..... your right, it is a 6.0 liter, and it is one of those 8.6.4S my fault..... sorry

 

As far as I can tell 1981 was the only year of the 6.0 vin code 9. I'm having problems with the injectors they will only fire just a few seconds and I'm thinking maybe the oil pressure switch?

 

http://www.mcsmk8.com/8-6-4/8-6-4.HTM this might help you.... again sorry

FYI
rickyd