What Causes the Squeaking Sound When Starting a Jimny?
1 Answers
There are several reasons why a Jimny may produce a squeaking sound when starting: Poor Oil Lubrication: After the car has been parked for a day, the engine's lubricating oil mostly flows back into the oil pan. During a cold start, the oil pump cannot immediately establish oil pressure and form an oil film between components. Especially the valves inside the cylinder head, which do not receive lubrication during a cold start, will have some valve clearance, whether they are hydraulic lifters or mechanical rocker arms, leading to abnormal noise. Charcoal Canister Solenoid Valve Noise: The function of the charcoal canister solenoid valve is to open the solenoid valve between the charcoal canister and the intake manifold after the engine starts. This not only reduces emissions but also lowers fuel consumption. However, abnormal noise may occur during its operation.