Oil pressure sensor connector broken wires?

Tiny
CHARLESTUCK
  • MEMBER
  • 1999 CHEVROLET 1500
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
My engine was leaking a massive amount of oil and it was traced to the back of the engine and the oil pressure sensor (sending unit). After I replaced the sensor, I noticed that 2 of the 3 wires were missing from the connector. The connector (pig tail) is very short and located at the back of the engine, just under the firewall. It is very hard to put both hands on it at the same time. Is there a way to splice in a new connector without removing the distributor? What are the colors of the three wires?
Sunday, September 14th, 2025 AT 7:07 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yes, you can get a wiring pigtail which can be spliced on it looks like there is only one wire going to the sender, tan wire. The connector has four places for wires but only one is used, I hops this helps. Check out the images (below). Let us know if you need anything else.
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Sunday, September 14th, 2025 AT 6:27 PM

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