The Truck Has Difficulty Starting Occasionally. Maybe The Plug Is Rusty

plug is rusty

Step 1: according to the owner’s description, the vehicle cannot be started occasionally, and the fault is irregular. This is an occasional symptom, so I took a taxi and found that the key was turned to the “start” gear, the vehicle did not respond, and the starter did not work plug is rusty.

Step 2: use the decoder to read the fault code, and there is no fault code. Since the starter does not work, the master’s first idea must be to check whether the neutral gear and clutch switch of the starter are normal, and there is no abnormality after inspection plug is rusty.
Step 3: then prepare to check whether there is a problem with the circuit of the starter. Check the T50 line. When turning to the “start” gear, the T50 line has 24V voltage. It is found that there is no problem with the starter circuit, so remove the starter and supply power separately for forced start. It is found that the starter can be started and everything is normal.
Step 4: the vehicle has a start switch and a stop switch under the vehicle. Is it these that affect the starting of the vehicle? So I pulled out the start switch and stop switch and took a taxi again. I found that the starter didn’t respond plug is rusty.
Step 5: almost all the problems related to starting have been found. Since the fault is accidental, the ECU is unlikely to have a problem, so open the circuit diagram to see if there is anything else that will affect starting. Suddenly, it is found that there is a start request signal switch in the circuit diagram. Is it the start request signal switch that is abnormal?

Step 6: because the master didn’t know where the start request signal switch was at that time, he tried to unplug other switches. After all, these switches are public plug is rusty grounding. When the water contained in the oil is removed, it is found that the plug has been corroded and has copper green. At this time, try to start the vehicle and it can be started plug is rusty.

Step 7: rewire and replace the plug to solve the problem. This vehicle is mainly used for loading salt. It is highly corrosive and can easily corrode the plug plug is rusty.

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The Truck Has Difficulty Starting Occasionally. Maybe The Plug Is Rusty

plug is rusty

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