Skip the auto shop - Our mechanics make house calls

Q: Temperature gauge jumping

asked by on

my Citr0en c2 temperature gauge jumps from 3 bars to red i have changed water pump, thermostat and housing and coolant temp sensor also bled it.

My car has 177000 miles.
My car has a manual transmission.

A: Hello. If possible, it would be good to ver...

Hello. If possible, it would be good to verify coolant temperature (with a laser thermometer or similar), to confirm that your temperature sensor and gauge are reporting temperature correctly. If so, it’s possible that you have a blown head gasket - given the advanced mileage. Blown head gaskets can "superheat" coolant rather quickly by leaking combustion gases into the coolant cavities in the engine. Coolant can be tested for the presence of these gases. I would recommend having a certified technician diagnose the overheating issue if you need further help having this addressed.

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: Overheating issue, when heater is on its normal temp. but if heater is off it begins to overheats, until heater is turn on again.

It sounds like your engine might have a restriction in the cooling system. If the cooling system has a restriction that prevents its flow, this will cause the engine to get hot. The heat is dissipated from the cooling system...

Q: What does flushing car fluids mean?

Flushing car fluids generally refers to having a sealed systems fluid completely replaced usually with the use of a machine that is capable of complete fluid exchange. Systems that are generally flushed in our modern vehicles include the coolant system,...

Q: My dad decided to push and clean my electric throttle body now my car is accelerating into second gear without me touching the gas

Remove the intake hosing to the throttle body and start the engine with the parking brake on and the transmission in park. Have someone throttle the engine as a snap throttle (to the floor and back very quickly but not...

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...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.