Q: Car temperature gets hot and makes a thumping noise.

asked by on

my car gets really hot after a while of driving, once it gets hot and im sitting idle at a stop light or parked theres this popping sound that is in the thermostat area. once i cut the car off the noise goes away in about a second or two, then i check the coolant and theres nothing in the resivore tank, i fill it back up with coolant and let it sit for awhile i bleed the coolant lines and start her up, she does fine until the coolant gets wasted and then the problem comes back again. the fans work,theres no leak in the radiator that ive seen nor the water pump, i dont think the head gaskets are bad , theres no water in the oil. or the timimg chain cover.

Hello. If the engine is using coolant like this then there is a serious issue. I usually do a pressure test of the cooling system first to make sure that there are no leaks. If there are no external leaks then I do a block test just to make sure that it does not have a bad head gasket. If the block test comes back negative then most of the time the issue is a bad intake manifold gasket.

The engine in your Oldsmobile Cutlass has a history of these failing which allows coolant to be burnt off in the engine. If you want to have this overheating and coolant loss issue checked, 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 1,000 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!
  1. Home
  2. Questions
  3. Car temperature gets hot and makes a thumping noise.

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: Will the gaslight still come on if the gauges are not working on my car

The low fuel light is incorporated into the gas gauge cluster and I will only speculate that if the gauge is not working then most likely the low fuel light will not come on. The light usually comes on when...

Q: Car is shaking while idling and leaking coolant

From what you have described it sounds like a coil or spark plug fault causing a misfire. With the coolant leak, the most common cause would be a coolant hose or the radiator leaking. The two may be caused by...

Q: Heavy oil leak when car is on

The first thing to check is the oil filter. Was the oil changed recently? Remove the filter and check the gasket. Did it push out of the groove? Are there two gaskets? Some other sources of pressurized leaks are a...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...