Seems my glow plugs only want to fire up when the car is warm. When its
cold, the light will not come on and it is hard to start. After I get to my destination, I shut er down and turn the key and the glow light comes on.
What gives? I tested the relay with an ohmeter and all 5 plugs register less than 1 ohm. And I get 12.5 volts on all three screws on the relay.
Any thoughts? I'd hate to sway out the relay for $150 if I am not sure if it need it. I did not however test the ignition plug on the relay. How does one test it?