Yes, Lite comes on as it should and goes out but randomly comes on after warm up.

My 92 300d just started doing this. Randomly coming on after its been running/ driving. Haven't had a chance to troubleshoot yet.

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The glow relay can stick on. If it does it will run your battery down as you drive since the alternator cannot keep up with the amperage draw of the glows. It will also hum and vibrate if its stuck on.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.