I finished all the other work on it: De-grease engine, timing cover timing chain tensioner access gasket, PCV valve, rear wiper blade, replace both washer nozzles, repair passenger side running board sag, clean throttle body......and then a restart after all work and sitting overnight drip drying after degrease and spray off. Had CEL but ran fine and pulled codes: P0014, P0430, P0500 and P0553......made note of all of them and cleared codes and restarted. No CEL and ran fine and road tested and nothing came back. had to be degrease and wash down related. He needed a low side R134A schrader cap and went to 2 parts stores yesterday and neither would sell them separate. Wanted to sell me a kit. I ordered a pair at Amazon and supposed to be here tomorrow. The guy lives less than a mile from me. I will run by and spin it on. I told him that as soon as I can figure out where that oil pressure switch is, I will get it installed. Almost forgot. He has some aftermarket cage crap on the taillights. They are for off roading protection. He is 80 years old. He does not off road. I removed the cages. He also has a small bull bar on it and when I do the oil pressure switch, I am gonna remove it. I told him the de-grease is best I can do but still needs a good cleaning. He is gonna take it in to a detail shop and get it all cleaned up. It is covered so bad that if there is any other leaks, I cannot tell where unless it is just pumping out while running and it is not.