Emperature gauge keeps bouncing around

Tiny
RIDAO
  • 1996 CHEVROLET SILVERADO
  • 14,900 MILES

The Temperature gauge on my 1996 silverado keeps bouncing around from all the way hot to normal operating range. When this first started I filled the radiator with coolant, Temp gauge keeps bouncing from all the way hot to normal operating range. When this first started I changed the thermostat, that did not fix the problem.

I went to the local parts store to get a temperature sending unit, but they said that there was not one listed for a 1996 silverado 5.7 four wheel drive. Where is the temperature sending unit located on this vehicle?

Do you
have the same problem?
Yes
No
Thursday, January 26th, 2012 AT 10:43 PM

3 Replies

Tiny
WRENCHTECH
  • EXPERT
  • 20,690 POSTS

It shares a temp sensor with the computer. It sounds like there is air in the system, probably due to a leak but could be a blown head gasket also.

Please consider a donation to help us answer more questions.
Was this
answer
helpful?
Yes
No
Thursday, January 26th, 2012 AT 11:22 PM
Tiny
RASMATAZ
  • MEMBER

Try checking the coolant temperature sensor-On left cylinder head, near No. 1 spark plug.

Was this
answer
helpful?
Yes
No
Thursday, January 26th, 2012 AT 11:26 PM
Tiny
WRENCHTECH
  • EXPERT
  • 20,690 POSTS

Ras is right. There is a separate sender for the gauge in the side of that head and check the connection of the wire to the sender, engine vibration can make it short.

Please consider a donation to help us answer more questions.
Was this
answer
helpful?
Yes
No
Thursday, January 26th, 2012 AT 11:36 PM

Please login or register to post a reply.

Related Suspension Bounce Questions

Help us by donating