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#1 |
Registered User
![]() Join Date: Dec 2012
Location: Green Bay Wisconsin
Posts: 126
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Is it the sending unit or the gauge??
Water temp sending unit doesn't work, or the gauge doesn't work. the gauge doesn't move at all, stuck in the same position since I put it in (swapped to gauges from lights) don't know if the sender works either. My research tells me I should ground out the wire from sending unit and the gauge will peg out, or see how many ohms the sender has with my absent ohmmeter!! Am I right? or is there an easier way? do you have to take the sender out to test it or can you do it in the truck?
__________________
1969 Chevy C/10 Stepside, Short Box. LQ4/4L80E swap in progress! (Donations being accepted!) |
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#2 |
Registered User
Join Date: Apr 2014
Location: Sumrall, MS
Posts: 381
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Re: Is it the sending unit or the gauge??
Find a buddy to watch the gauge, Turn the key on. Take the wire off the sending unit and touch it to a good known non-painted ground. Gauge should peg out if its functional. If it works how much tape sealant in on the sending unit?
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#3 |
Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,073
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Re: Is it the sending unit or the gauge??
The sender and I think the wiring are different between lights and gauges. The engine harness and/or the dash harness may be different.
You might want to do some research and see if the harnesses are different. |
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#4 |
Registered User
![]() Join Date: Dec 2012
Location: Green Bay Wisconsin
Posts: 126
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Re: Is it the sending unit or the gauge??
It was the sending unit, grounding the gauge pegged out the needle! All wiring is new from aaw and wired for gauges not lights. Note to self, draining the fluid out of the radiator is not going to stop the gushing of antifreeze all over the garage floor when you remove the sending unit!! I'm glad oil changes are not that way!! Also, steveo3318, no tape sealant.
__________________
1969 Chevy C/10 Stepside, Short Box. LQ4/4L80E swap in progress! (Donations being accepted!) |
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#5 | |
Cluster King
![]() Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Is it the sending unit or the gauge??
Quote:
Another tip I can offer is if the gauge is wired correct and has a good ground, you will be able to see it move just a fraction of an inch as soon as you turn the ignition to the run position when the engine is stone cold. This is a good test to see if the gauge has power. If the gauge does not move even a little when you key up, there is no power to the gauge.
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Contact me on all of your gauge cluster needs. I specialize in restoration, repair and parts sales for 67-72 Chevy and GMC trucks. email me at tbonegarris@yahoo.com I am also a dealer for Counterpart for gauge cluster parts only. Also see my facebook page, CG&C |
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#6 | |
Registered User
![]() Join Date: Dec 2012
Location: Green Bay Wisconsin
Posts: 126
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Re: Is it the sending unit or the gauge??
Quote:
like this:
__________________
1969 Chevy C/10 Stepside, Short Box. LQ4/4L80E swap in progress! (Donations being accepted!) |
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#7 |
Registered User
Join Date: Apr 2014
Location: Sumrall, MS
Posts: 381
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Re: Is it the sending unit or the gauge??
To much sealant can't have the same effect asto much tape!!!
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