LR4 Wont Start after engine rebuild.
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LR4 Wont Start after engine rebuild.
After replacing my flywheel & head-gaskets, I can't get this 2012 LR4 to start. I have compression, spark, and fuel. I tipple checked timing. The fuel tank is nearly empty, showing 56 miles to empty. Will add fuel and test. It did start one morning, I let it run for 20 seconds and shut it off as I noticed the engine temp gauge spike. Couldn't start it afterwards. My temp guage is showing at the half way mark even when the truck is cold and I suspect the ECU is getting a bad read, maybe the one of the 2 coolant temp sensors got damaged during the rebuild. I believe I have some sort of electrical problem that occurred during the rebuild as this issue is new. Has anyone had problems starting due to a faulty coolant temp sensor?
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Yes, I did figure it out.. but it took a while. During re-assembly, the ETC connector was inadvertently swamped with another connector- I don't recall which it was exactly, may have been a knock sensor. Most manufacturers intentionally design or position connectors in a manner to avoid plugging in the wrong wire, but in my case I had extended one wire further than it was original positioned. The tell-tale sign for me was the temp guage spiking to max, clearly the ECU was receiving bogus values. Double check you have connected the sensors to the right connector.
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