Posted 10/12/2025 13:31 (#11397833) Subject: oil pressure sending unit
Clarendon NC
have a 1999 GMC C6500 7.4 litre engine. oil sending unit has 1 wire going to it. need to replace cant find any thing with one wire plugin local parts houses say it only was used for 1999 w/ 7.4 litre engine 2000 and up have a 3 wire harness anybody ran in to this and how did you resolve it Thanks in advance Len P S to add NLA from GM
oil pressure sending unit
