Q: Temp gauge goes up and down while driving 2006 Infiniti G35

asked by on March 15, 2017

I recently got my coolant flushed and fixed a leak also got a new thermostat but my car temp gauge keeps going up and down and now my engine fan stays on while driving it only turns off when car turns off.

My car has 139000 miles.
My car has an automatic transmission.

Car is overheating Inspection $79.99 - $89.99 Get a Quote

Hi there - either the recent cooling system work did not thoroughly bleed all the air out of the system, or you still have a bad thermostat - even the new one. A properly working thermostat should manage coolant temperature so that the gauge is steady in the center of the gauge. I recommend an overheating inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

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

What others are asking

Ignition switch won't turn all the way off

It would appear that the vehicle has several problems that will need to be addressed separately. The radio staying on is probably caused by a switch that is not turning off all the way. This may also be related to...

AC causing knocking sound.

The knocking noise is the temperature blend door actuator trying to move the blend door. The actuator would need to be checked and replaced. I recommend having a certified mechanic, such as one from YourMechanic, come and inspect your vehicle's...

What can be the problem when the car sometimes make this clicking noise when making a turn?

Hello. If the noise only occurs when turning, it is typically caused by a failing CV axle. When one of the joints on the axle fails, it will start to make the noise you are hearing. I typically get the...

My manual car starts but will not move on any gears.

What you are describing sounds like potentially a worn out clutch. As you know, the clutch transmits engine power to the gearbox, and allows transmission to be interrupted while a gear is selected to move off from a stationary position,...

Power stearing leaking/not working need steering seal too? 2006 Chrysler PT Cruiser

Hello - if you care planning to replace the power steering pump, and the steering pump, these components will come with new seals - no additional parts needed except for hose o-rings, which your mechanic will grab too. 43K miles...

I replaced the oil pan gasket on pontiac g6 2006, lifted the engine up with a engine hoist and now I am all done but the enginengi

If you are referring to the height of the vehicle being off, just jounce the vehicle and it will settle at ride height. None of the suspension was removed so mis-positioning of control arm bushings would not apply. However, if...

Hi I have a 2006 mercedes benz e350 how to reset the ESP light?

If there is a problem in the system, You will have to read the codes and correct the fault for the light to go out. However, If the ESP light has come on after you have replaced a battery or...

Random Loss of Throttle from Pedal

Hi There, The inconsistent throttle response you are describing sounds like you may have a faulty throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot...

Burning smell from engine

This vehicle does not tend to have many issues with burning smells coming from the engine. The main one that I run across is oil burning on the engine. This is typically caused by an oil filter or oil plug...

Related articles

How to Buy a Good Quality Heater
In In the dead of winter, when the cold air is nipping at your heels, nothing is better than climbing into a nice, toasty warm car. However, having a heater problem like a heater that blows cold air or leaks...
A Buyer’s Guide to the 2012 Infiniti EX
If If you’re in search of sport meets practicality, the EX may just be your perfect match. With the sedan-like driving of its G37 sibling combined with utility functionality and plenty of power under the hood, this is one SUV...
How a Car's Cooling System Works
Have Have you ever considered the thousands of times explosions occur in your engine? If you're like most people, that thought never enters your mind. Every time a spark plug fires, the fuel and air mixture in that cylinder blows...