1987 Other Chevrolet Models fuel sending unit

1987 CHEVROLET
200,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
87CHEVY
  • MEMBER
  • 3 POSTS
i put a new sending unit in my truck yesterday because the unit wasnt getting power i cheked the relay ...she got power and now sending unit isnt getting power but th e relayis getting nothing i dont know what the problem is
May 13, 2009 at 7:50 AM
Advertisement
Avatar
MMPRINCE4000
  • CERTIFIED EXPERT
  • 8,548 POSTS
The fuel gauge sending unit has two wires, a ground and a wire that sends a resistance signal to the gauge.

On most GM cars it is 0-90 ohms, 0 being empty and 90 being full.

So, use multimeter and check for resistance, shake car and resistance should fluctuate a few ohms.

Is that your question or is your fuel pump not working?
May 13, 2009 at 8:03 AM
Avatar
87CHEVY
  • MEMBER
  • 3 POSTS
my 87 chevy scottsdale the fuel pump and sending unit isnt turning on the realy is nt comming on either checked every thing i have no idea what the problem is i have gone over my haynes manuel 90 thousand times ......
May 13, 2009 at 9:22 AM
Advertisement