Re: OVERHEATING

Posted by HH56 On 2012/7/25 10:39:22

I agree with PV8. You need to rule out a couple of things in that circuit.

If you have an ohm meter, check resistance of sender to ground. With wire disconnected and engine cold, you should read 80-100 ohms. With engine at normal temp, should be somewhere in middle of range. I'd guess around 30-40 ohms. Anything less and the sender is suspect or someone put the wrong sender in. Obviously, with the wire disconnected the gauge should be on cold. If anything other, then need to look for a problem with wiring.