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Originally Posted by cdigerlando
Now that makes sense to me. Thank you for the clairification. I guess the only way to test the operation is to not only apply the voltage, but also to heat the valve.
Thanks
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No. What Jason has described so well, is exactly correct. The valve is in effect a thermal delayed operate device. Applying the voltage heats the element which then responds but only after a set period. Engine heat may ultimately assist, but is not the primary signal.