Q: What could cause loud clicking/clunking sound from front. Temp gauge fluttering

asked by on

Loud clicking clunking sound started after making a sharp u-turn. Not when car is stopped and in Park. Temp gauge flutters from hot to mid-range and then back to hot and stays there.

My car has 198000 miles.
My car has an automatic transmission.

Hi There, it sounds like you may have two separate issues going on here. The clicking/clunking noise sounds like a bad CV joint. A CV (Constant Velocity) joint is a shaft that connects the transmission to the wheels, essentially transferring the power from the drive train directly to the wheels. The CV joint is packed with a special grease and sealed tight with the rubber or plastic boot, that is held in place with two clamps. The most common problem with the CV joints is when the protective boot cracks or gets damaged. Once this happens, the grease comes out and moisture and dirt get in, causing the CV joint to wear faster and eventually fail due to lack of lubrication and corrosion. When the CV joint becomes damaged or worn, you may hear a clicking, clunking or popping sound coming from this area as the weight of the vehicle puts pressure on this area and shifts back and forth and side to side.

The temperature fluctuation is a result of some part of the cooling system functioning properly. Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. When your thermostat is not working properly or is stuck closed, this will not allow the coolant to properly circulate through the engine, which may cause the engine temperature to fluctuate erratically or in some cases just remain hot. You may also have a water pump that is beginning to fail. Water pumps often times will begin to produce a bit of a whining sound when they are starting to fail. A common problem also associated with this is the water pump may begin to leak around the water pump shaft due to the seal being damaged. In addition to leaking around the pump, you may have a leak elsewhere in the cooling system coming from one of the hoses going to or from the radiator. Lastly, you may have a failing cylinder head gasket allowing coolant to leak from the water passages into the cylinders resulting in the coolant being burnt in the combustion chamber with the fuel. If this is the case, you may also notice a bit of white smoke coming from your exhaust which is a product of the coolant being turned into a steam like vapor. I would suggest having an expert from Your Mechanic come to your home to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What could cause loud clicking/clunking sound from front. Temp gauge fluttering

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: I now know my catalytic converter is bad can I still drive it to work til I have it fixed in a day, I drive one way 65 miles

Although you catalytic converter may still allow the car to run, there is often times no telling when it will cause the car to not run. As you have experienced, this will cause the car to get very poor fuel...

Q: Engine block cracked

Your engine has a cast iron block and aluminum heads. There are ways of repairing cast iron blocks: pinning, flame-spray welding and furnace welding. However, these processes have their limitations and are time consuming. Plus, most repair shops aren't willing...

Q: Not shifting and quit running - 2011 Honda CR-Z

With your description of the problems, it sounds like your vehicle is having problems with the clutch slipping on the engine flywheel. 60,000 seems pretty early for this type of problem, but depends on the way the vehicle is driven....

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.