Skip the auto shop - Our mechanics make house calls

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

A: I would first try removing the accessory be...

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Is this engine a 'close proximity engine'?

Hey there. This engine is an interference motor. This means if the timing chain breaks then the valves will contact the pistons if the engine is still turning. You would be able to tell if the engine was an interference...

Q: Power steering fluid leaking

Hi, thanks for writing in. A stop leak will not hurt the pump, and can sometimes cure a power steering leak temporarily, but should not be considered a permanent fix. But it will likely be safe for you to go...

Q: Car idling high when stopped

Hi there. A vehicle idling high can be caused by a couple of problems. First, it can be due to a loss of manifold pressure, causing the vehicle to compensate the lack of air intake by throttling higher on its...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...