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Can you fix a timing chain tensioner?
If the timing chain is worn, it’s usually replaced as a kit with a new tensioner, guides, and other parts of the chain drive mechanism. Many cars have two or even three chains in their motors and often your auto repair shop may recommend replacing all the chains at once.
What causes timing chain tensioner failure?
A timing chain can break with either too much or not enough tension. If the chain does not have enough tension, it can develop slack. A chain with too much tension can also fail, as it is placed under excessive stress. Tension increases friction and heat in the chain, which can result in failure.
What are the signs of a bad timing chain tensioner?
Symptoms of a Bad or Failing Timing Chain Tensioner
- Engine may stall or run rough.
- Noise in the front of the engine (a rattle or rumble, associated with engine speed)
- Check Engine Light may illuminate and set misfire, camshaft sensor, and crankshaft sensor codes.
What causes a timing chain tensioner to go bad?
A timing chain can break with either too much or not enough tension. This can result in the chain “slapping,” leading to premature fatigue. A chain with too much tension can also fail, as it is placed under excessive stress. Tension increases friction and heat in the chain, which can result in failure.
What happens if a chain tensioner breaks on a Chevy Cobalt?
Chevrolet revised the design of the tensioner multiple times over the production of the Cobalt, replacement is necessary to remedy this condition. A failed chain tensioner may result in a broken timing chain and subsequent engine damage if the issue is not diagnosed and repaired.
Where are the timing marks on an Ecotec chain tensioner?
Independent of GM’s designs, Cloyes has designated the timing marks as shown in the illustrations to the right. With all designs the unique timing mark is aligned with the intake balance shaft sprocket timing mark and intake cam sprocket timing mark.
What kind of timing chain does Chevy Cobalt have?
Just a little information on the Cobalt 2.2 Ecotec. The Cobalt has 46k on it and no mods, just stock. Normally it runs and starts like a champ. I went to the store last night and when I came out I had a hard time starting it. The SES light came on and it ran a little rough with a slight ticking noise.
What was the problem with my Chevy Cobalt?
My problem with my 2007 Chevy Cobalt, 2.2L engine, 124,000 miles, was a noisy timing chain that would quiet up after the engine ran for about 5 seconds. I knew what the problem was, took the car to a local garage and had the timing chain kit installed for $530.00 plus tax.