Skip the auto shop - Our mechanics make house calls

Q: What is wrong with my car and is it serious?

asked by on

I was driving to work when my oil light, brake light, and battery light illuminated on the dash board. I stopped and opened the hood to check oil and loose battery terminal but everything was okay. I tried starting the car but to no avail. My mechanic initially said a loose nut made the timing chain not to work well. He has retimed it but still car won't start. He now claims the valves are broken and need replacement.

My car has 10000 miles.
My car has an automatic transmission.

A: Hello, thanks for writing in. From the firs...

Hello, thanks for writing in. From the first explanation of what happened, it sounded like the vehicle has a bad alternator and that it caused the battery to fail. This would causes these problems. With that being said I have seen a lot of timing chain issues on this engine. The timing chain tensioner fails or the timing chain itself breaks which will cause these same things to happen. If the timing chain does fail it causes serious engine damage to the valves. If you want a second opinion on this engine problem, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Oil on electrodes of spark plugs and cylinders

First, visible amounts of oil on the spark plug electrode is never a good sign. To me, if the vehicle starts and struggles to run, there may be a major mechanical malfunction regarding your explanations. Have the mechanical timing checked...

Q: Warning regarding throttle and limp home mode

Hello. This is the first sign of a bad throttle body. This is a common failure on this vehicle. When the throttle motor or position sensor fails this occurs as the computer can no longer control the throttle. Most of...

Q: Rattling noise under car

Damage often occurs to a vehicle when it hits a curb, even it the initial impact seems small. Your Nissan Versa could be experiencing one or more of its splash shields, found underneath the vehicle, come loose and is now...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...