31. After turning on the start switch, there is only sound but no rotation.
Cause of the problem: Insufficient battery storage or loose starting circuit wire, damaged starter bearing, armature shaft bending (rotor part) and collision (stator part), short circuit between armature and excitation coil.
Troubleshooting method: Completely shock the battery to fix the wire connection, replace the bearing or starter, check and repair the armature shaft or replace the starter, check or replace the repair coil, replace the starting switch or electromagnetic switch.
32. Poor cooling effect or no cooling
Cause of the problem: The electromagnetic clutch is not depressed or the compressor belt is too loose, there is less refrigerant, the condenser fan or blower does not rotate, and the air intake pipe is blocked.
Troubleshooting method: Check whether the electromagnetic clutch is damaged, adjust the belt filled with refrigerant loader sales volume 18504725773 to reach its standard value, check the fan or wiring, and check the air intake pipe to clear the blockage.
33. The air conditioning system is noisy
Cause of the problem: The transmission belt is too loose or severely worn, the compressor mounting bracket is loose, the blower motor is loose or worn, the electromagnetic clutch slips and makes noise, and the internal parts of the compressor are worn.
Troubleshooting methods: adjust the belt or replace it, readjust the tightened loose parts, replace the motor or repair it, check and repair the electromagnetic clutch or replace it, replace damaged parts, and replace the compressor if necessary.
34. There is a “slapping” exhaust sound when the engine is running. The water return to the water tank filling hole will increase as the engine speed increases.
Cause of the problem: The cylinder head is caused by uneven tightening torque of the fixing bolts. Cylinder head deformation, cylinder head quality problem, injection advance angle is too early.
Troubleshooting method: Readjust according to the specified torque and sequence, replace the cylinder head, replace the cylinder head with good quality, and adjust the lead angle.
35. High oil consumption
Reasons for the problem: oil leakage, turbocharger oil leakage, air filter clogged, too much oil, the oil grade does not meet the requirements, the viscosity of ordinary oil is too small, the oil and gas separator is blocked, the piston rings and cylinders of the piston air compressor Severe wall wear, premature cylinder liner wear and blow-by.
Troubleshooting methods: Replace the oil seal or tighten the leaking part, replace the supercharger, clean the filter element, place it in the designated location, replace the oil that meets the regulations, clean or replace the piston ring, piston ring and cylinder wall, replace the cylinder liner and other parts.
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Post time: Apr-09-2024