What is the timing chain tensioner? What are the symptoms and malfunctions of the timing chain tensioner?
What is Timing Chain Tensioner?
The majority of high displacement engines are equipped with a timing chains embedded within the engine. You must first understand the timing chains before you can understand their role. The engine has a crankshaft as well as one or more camshafts. The crankshaft connects to the piston rod assembly and piston assemblies. The intake and exhaust valves, on the other hand, are driven by the camshaft(s).
The valves have to open and close at the same time that the pistons are in the right place. The crankshaft and camshaft(s), must function synchronized. Depending on the engine’s design, a timing chain or timing belt is used to link the crankshaft to camshaft(s), thus ensuring that the engine runs as planned.
To stabilize and maintain tension in the timing chains, one or more tensioners or guides are used. Depending on the engine design, the tensioner may use either an oil pressure or a spring to keep the timing chains tight.
It is essential that the timing chain be adjusted correctly so that the engine timing stays within specifications. The engine will run very hard, and misfires will result. Even severe engine damage can result from a valve-piston collision.
Faulty Timing Chain Tensioner Signs
Although the timing chain, and other components like the timing chains tensioner are intended to last the entire life of the vehicle’s engine, it is sometimes not true. A bad timing chain tensioner could cause severe engine damage. You should address it immediately. You may have a problem with your timing chain tensioner if you experience any of these symptoms.
Note: A faulty timing chain tensioner could also be a problem. Before making any repairs, your mechanic should conduct a thorough diagnosis.
Engine Malfunction light on
The engine computer, also known as the powertrain management module (PCM), monitors engine time via crankshaft or camshaft sensors. The PCM illuminates the check engine lamp and stores a fault code in the memory if it detects an error in engine timing, such as a faulty tensioner.
Engine Performance Problems
Three components are required for an engine to work properly: correct ignition, precise air-fuel mix, and adequate compression. Proper ignition of the mixture is dependent on proper compression.
A faulty tensioner can cause engine timing problems, causing the valves to not open or close correctly. This causes engine stalling and compression loss.
Engine Runs, But It Cranks
The engine might not start if the tensioner is damaged, or the timing chain becomes too loose or breaks, If this happens, the valves may remain open and the pistons can hit the valves, which could cause catastrophic engine damage.
Clicking noise from engine
A loose timing chain can lead to a rattling engine. The engine may have hydraulic tensioners. As the oil begins to circulate, the rattling sound will be even more evident.
Over time, the timing chain tensioner may wear out and become stretched. The oil change schedules should be followed strictly to reduce tensioner life expectancy and speed up its wear. To inspect the tensioner, remove the timing cover. The tensioner has failed if it is bent or damaged.
