ECM question
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Cross-Country
Joined: Sep 2020
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ECM question
I have a 1990 4x4 5.0 with the E40D, I have noticed sometimes lately that on a cold start it does not idle up for the warm up cycle. Could this be a sign that I am having ecm problems? As far as I know it has never been replaced and the truck had sat for 10 years before I got it.
Lead Driver
Joined: Jun 2021
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I have a 1990 4x4 5.0 with the E40D, I have noticed sometimes lately that on a cold start it does not idle up for the warm up cycle. Could this be a sign that I am having ecm problems? As far as I know it has never been replaced and the truck had sat for 10 years before I got it.
Cargo Master
Joined: Mar 2003
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check the resistance values of your engine temp sensor
Thanks to Steve83:
Sensor & Actuator Testing Values
Resistance (Ohms) is measured with the device DISconnected (so the key doesn't need to be ON). Voltage is measured with the circuit complete & key in RUN, as during normal operation. Back-probe the connector, or pierce-probe the wires.
Thanks to Steve83:
Sensor & Actuator Testing Values
Resistance (Ohms) is measured with the device DISconnected (so the key doesn't need to be ON). Voltage is measured with the circuit complete & key in RUN, as during normal operation. Back-probe the connector, or pierce-probe the wires.
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