Q: Hi i recently replaced my water pump and timing belt tensionerand idler pulley nowcthe car is rumbling at idle do you think the cr

asked by on

My vehicle is a 93 toyota paseo did a timing job on it now it's rumbling at idle and not running the same any ideas timing marks line back up after six full revolutions of the crank I'm stumped as to why this would happen

I would first try removing the accessory belt to pinpoint the issue. Once it’s off, start the engine and check if the noise is still there. If it is gone then you’ll know that the noise is one of the accessory pulleys. If this is the case, turn on each one to see if one is noisy. The alternator may be noisy. Also, double check to make sure the crankshaft pulley is tight. If you need some help with these checks or repairs, contact a certified technician, like one from YourMechanic, who can diagnose your rough idle and help you fix it accordingly.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Hi i recently replaced my water pump and timing belt tensionerand idler pulley nowcthe car is rumbling at idle do you think the cr

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine is very strong on hard acceleration, but on light acceleration it misfires, also rough idle and smells way too rich.

This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed...

Q: Car dies when I apply brake and turn wheel at the same time

This may be a result of a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and...

Q: Ford Ranger idle roughly

These engines were known to get a carbon build up on the intake valves and the excessive carbon buildup will soak up any fuel the injectors spray when it is first started until it gets warmed up. The buildup can...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.