Q: loud rattling noise when accelerating, somewhat quiet clicking noise when idling

asked by on February 25, 2017

Hi, I recently changed my spark plugs on my 2008 GT eclipse, In order to reach some of them I had to remove the upper intake manifold, and in the process remove my intake system, egr valve, and several brackets and hoses. Now when I drive I hear a clicking / rattling noise when I accelerate, it seems the higher my engines RPMs, the faster the noise goes, sounds like loose heatshield did i leave something disconnected, or is it just a bad coincidence?

My car has 101000 miles.
My car has an automatic transmission.

Hello, thank you for writing in. In this kind of situation, the noise may very well be related to the recent work. Start by going back through as best you can without disconnecting too many things to verify your repair. Make sure you did not leave out any screws, make sure all torque specs were followed, make sure nothing is leaking, make sure all your fluids are full and in good condition, and make sure nothing has shifted. Due to it being related to engine speed, you want to make sure the drive belt is also tight and correctly placed on its pulleys. For more diagnostic help, contact our service department to schedule an appointment.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Getting codes P0161 and P0325
Hello. Both codes indicate a circuit failure, and I suspect that the connectors were not properly reconnected after changing the valve cover gasket. These codes are not likely actual part failures. It is a very tight squeeze to get in...
Clutch slipping started recently
Hi there. The Mini tends to wear through the clutch very quickly. Many other Mini owners with manual transmissions have reported having to replace the clutch at very low mileage, sometimes under 10k miles. The clutch will most likely need...
my ASB light
I am assuming that you are talking about you ABS light for your antilock braking system. You will need a slightly advanced computer scan tool to read the codes stored in the computer. From there, additional diagnosis can be performed....
Car vibrates when driving or when I hit the brakes
The most likely issue is that the motor (https://www.yourmechanic.com/parts/engine-mount) or transmission mounts are broken. If your mounts are broken, then the engine will rest on the metal of the mounts and you will feel the engine throughout the car. It...
Car parked for 1 month has dead battery
The engine computer definitely needs to see engine RPM in order to power the coil. Between the ignition coils and the engine computer is an ignition coil power output stage unit which is supplied power from the engine computer. The...
My four way and left turning signals don't flash
Hello - I suspect there is a bad ground or wiring damage on the left side wiring for the turn signals. The turn signals and emergency warning flashers use the same flasher unit (https://www.yourmechanic.com/services/hazard-turn-signal-flasher-replacement), which explains why the right side...
Hello Tien, I'm leading an Audi A3 , 1.8 2016. Got it on July 28, did my first service in December. This month I've drove from Mia
Hi there. It is common for tire pressure to rise and fall with rise in altitude and with temperature. In fact, tire pressure can drop as much as 3 to 5 lbs when there is a temperature change of more...
My car cranks over, but won't start, or even sound like it might.
Hello, It sounds like you may have a bad fuel pressure regulator (https://www.yourmechanic.com/services/fuel-pressure-regulator-replacement) or potentially a leaking or faulty fuel injector (https://www.yourmechanic.com/services/fuel-injector-replacement). I would suggest having an expert from YourMechanic come to your location to run a fuel pressure test...
My husbands gas guage has been messing up?
Hello, thank you for writing in. The fuel pump is part of a unit called the fuel module. The module also houses a float that raises and lowers with the level of the fuel. That movement is then translated into...

Related articles

A Buyer’s Guide to the 2012 Mitsubishi Eclipse
2012 2012 marks the end of an era for the Eclipse and Mitsubishi sends the sporty little car off in style. As affordable sports cars go, the Eclipse has served its segment well with stylish looks, respectable performance, and a...
A Buyer’s Guide to the 2012 Mitsubishi Outlander
The The smaller size and aggressive styling make the 2012 Mitsubishi Outlander a great choice for those who want an SUV, but don’t want to deal with some of the large behemoths available. With numerous tech options and all-wheel drive...
A Buyer’s Guide to the 2012 Mitsubishi Eclipse Spyder
In In 2012 Mitsubishi says sayonara to the 22-year run of the sporty little Eclipse, and with it, the Spyder convertible. This sleek, stylish soft-top has enjoyed many years of popularity as a fairly affordable option for those with a...