R D farmer Posted September 3, 2021 Share Posted September 3, 2021 🤪 Quote Link to comment https://www.bigmacktrucks.com/topic/67961-1997-ch-613/ Share on other sites More sharing options...
0 R D farmer Posted September 3, 2021 Author Share Posted September 3, 2021 II have a1997 ch 613. It is giving me two warning light, electronic malfunction and engine shut down. They might come on and stay on or can be intermittent, but never shuts engine down. Any ideas thanks Quote Link to comment https://www.bigmacktrucks.com/topic/67961-1997-ch-613/#findComment-479345 Share on other sites More sharing options...
0 Mackpro Posted September 3, 2021 Share Posted September 3, 2021 If both yellow and red light both on at the same time and it has a grey engine (non-MP) it’s low coolant sensor and or low coolant . Common to see this when first starting engine, then as coolant expands and rises , it touches the sensor and lights go out . 2 Quote Link to comment https://www.bigmacktrucks.com/topic/67961-1997-ch-613/#findComment-479359 Share on other sites More sharing options...
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