Skip the auto shop - Our mechanics make house calls

Q: New valve clicking noise

asked by on

I installed a new axel-back aftermarket exhaust, after running the engine a few times for a short period (less than a minute) I disconnected the battery, cleaned the mass air flow sensor (car would change idle speeds, thought that would help) reinstalled and went for a drive. After the engine reached operating temperature, the valves started clicking. The oil is at the correct level, and the oil has less than 1000 miles on it.

Not sure if the new exhaust caused this or since I disconnect the power source the ECU needs to re-learn the timing with a cleaner Mass air?

My car has 99135 miles.
My car has an automatic transmission.

Hello. The ticking sound you are hearing will probably be an exhaust leak, valve lash,incorrect oil usage, or something improperly installed during the aftermarket exhaust installation, I suggest that a stethoscope is used by a technician to help determine what region the noise is coming from then, diagnose the possible causes.There is also a recall available for the drive belt and pulleys of your vehicle. A worn pulley may cause a ticking sound when spinning. You will have to call your local Mitsubishi dealer to see if your vehicle has had the work done already. If the work has not been done Mitsubishi will evaluate your drive belts system and fix anything required under the recall for free. Your are able to find a technician who can help you pinpoint that engine noise here https://www.yourmechanic.com/services/noise-from-engine-or-exhaust-inspection

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: How do I find the fuses for my radio and time clock?

If you still have the owners manual for your vehicle, there will be a diagram that lists all the fuses, their locations, and amp ratings in case one or more fuse needs to be replaced. Always used the specified amp...

Q: Pitted surface around exhaust ports on head.

The cylinder head gasket mating surface must be machined flat to ensure a proper seal and the exhaust manifold mounting surface may be machined if there is an exhaust leak there from the cylinder head warping. A few small pits...

Q: I have transmission fluid in my coolant - did water get in my transmission?

I must say, this is the first time I have heard of this. However, I understand your problem and can help you fix it. Your radiator has transmission oil cooler lines. I am going to be honest I don't think...

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...
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...
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...