Skip the auto shop - Our mechanics make house calls

Q: Sounded weird when I started it, steering busted

asked by on

Right when I started it up, I noticed that there was something wrong with my 2006 Kia Sorento. The power steering was nonfunctional and the sound was just… off. I looked under the hood and the fan belt was not moving and looked loose. This car has 76,000 miles on it, will this totally ruin the engine? I want to know what to expect going into this repair.

A: Hello, thanks for writing in about this pro...

Hello, thanks for writing in about this problem!

The belt not moving generally indicates that the crank bolt is broken, causing the crank pulley to become loose and the belt to become disengaged. Technical Service Bulletin (TSB) KT20060425001 for 2003-2006 Sorento Crankshaft Bolt Torque Guidelines was released, stating specific bolt handling instructions including hat any time the bolt is loosened or removed it is to be replaced with a new bolt and that bolts should be hand tightened.

Crank bolt failure often occurs after a timing belt adjustment has been done and the bolt is either not replaced or the new bolt is installed and tightened with an impact gun. The part number for a new bolt is 23127 39801 and washer 23126 32021.

The rest of the items behind the crank pulley should be inspected for damage as well, including the timing belt drive gear, crank shaft sensor plate, and the two woodruff keys. If you are already inspecting the items behind the crank pulley, it would also be a good time to check the timing belt and replace it if necessary.

The crankshaft bolt breaking is currently in litigation with a class action law suit, with an outcome yet to be determined.

A certified mechanic, such as one from YourMechanic, can diagnose your fan belt problem.

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: Advice on buying a 2001 Honda Civic

Well, 3,000 is a reasonable amount of money for a car that's had over 140,000 miles, but if he really has proof that it has a new timing belt, a water pump, and that it runs and drives great, well...

Q: Engine has sludge.

Replacing an engine is a very costly repair. Oil sludge often results from contaminated or neglected oil. Not having oil changed at regular specified maintenance intervals will cause sludge to build up inside the engine. Sludge if not excessive can...

Q: What Are Common Signs That Your Drive Belt Is Loose?

A loose drive belt will often be noisy, squeaking a bit, or emitting a high-pitched squeal. The most obvious sign of a loose drive belt, though, is in its appearance and tension. A loose belt, simply stated, looks and feels...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.