Why does my temp gauge go up and down

If the thermostat is sticking or not opening and closing right then this will occur. The reasons for the failure of the water pump malfunction include seal leakage shaft breakage and casting breakage.

When your car gets overheated the temperature gauge is the first thing to indicate it.

Why does my temp gauge go up and down. However as all car parts wear some malfunctions can cause your engines temperature to either go up or down or even fluctuate during driving. You need to know that a certain range of fluctuation is normal but if the temperature fluctuates wildly youre looking at a problem with your cooling system. A common reason your car temperature gauge goes up and down and no heat is emitted is that your cooling system is faulty.

You may want to check out clogged components such as the heater core radiator hose coolant level thermostat or water pump. The coolant passageway might be blocked with sediments or rust. The main reason why car temperature gauge goes up and down while driving is because something is not working properly in your cars cooling system.

It could be the radiator fan water pump thermostat valve coolant or the gauge itself. Why does the coolant temperature gauge go up and down. Choose your car for a more accurate estimate.

If the coolant temperature gauge is constantly fluctuating then the most common cause of this is a bad thermostat. If the thermostat is sticking or not opening and closing right then this will occur. When the thermostat is stuck open it can cause the coolant to circulate constantly resulting in the motor never reaching the correct operating temperature.

The cooling fans may be working intermittently as a result of a faulty cooling fan relay or resistor. The difference between the relay and the resistor is that the relay controls the power to the fan in total meaning that if. My temperature gauge keeps going up and down when.

Pull off the hose at the top of the motor if you can see the thermostat try pushing on the center with a screwdriver it is most likely stuck open. You may be able to free it by pushing the center back and forth till there is no longer any resitance but it needs to be replaced. Why does my temperature gauge keep going up and down.

Low coolant a clogged radiator bad water pump and a handful of other things could all be a potential issue. Replacing a thermostat is much easier than replacing an engine so keep an eye on your temperature gauge. Reasons Your Car Temperature Gauge Go Up.

There is not one but multiple reasons why this happens. One thing you should know that this could cost you a lot of money to fix it. When your car gets overheated the temperature gauge is the first thing to indicate it.

If the gauge crosses the optimal mark you should immediately pay attention to it. The main reason why car temperature gauge goes up and down while driving is because something is not working properly in your cars cooling system. It could be the radiator fan water pump thermostat valve coolant or the gauge itself.

To fix either of these issues wed advise that you engage a proven auto mechanic. Right after that I had no heat and the temperature gauge would go up to hot but then come right back down. Brought it back to mechanic changed thermostat and both things ok only part way home.

Started riding with coworker only driving to her house 7 miles away and still temperature gauge up and down stopped driving completely in Feb. Oct 15 2011. Ive been using the heat for the past several weeks and its never done this until now.

The temp gauge will normally go up about 13 of the way and stop as usual. It didnt even make it past the bottom bar today and it was definitely warmed up. The thermal energy does leave the engine block because the universe tends towards thermal equilibrium so the temperature that my cars sensor reads decreases and my temperature gauge goes down.

So now Ive got my backpack and Im ready to go to the University so I start my car pull out of the parking lot and start driving towards the University. The main reason why car temperature gauge goes up and down while driving is because something is not working properly in your cars cooling system. It could be the radiator fan water pump thermostat valve coolant or the gauge itself.

To fix either of these issues wed advise that you engage a proven auto mechanic. If the temperature is good in the radiator then you should check the operation of the water pump. If it is not pumping properly it should due to worn pump blades.

Replace the water pump and recheck the system as necessary. Youll have to check out the entire cooling system before you get to the head gasket. The radiator could be plugged could have plugged cooling passageways could have a defective water pump loose belt issue collapsed hose excessive load on the engine due to dragging brakes underinflated tires and so forth.

If the cooling system is building up excessive pressure then this is often a sign of cylinder pressure entering the cooling system. The ECT sensor is also a culprit for the excessive reading you can test the sensor using a multimeter and a boiling pot of water. A few days ago got in my car after it has been parked several hours.

As soon as I started the engine the temp gauge instantly hit the red fell right back to bottom then shot to red then to bottom. Once driving it stayed below half way and behaved normally. Got in car the next day and white.

My truck did that too. My temp gauge was well under 210 driving down the highway then all of a sudden it jumps up past 210 between 210 and 260. I pulled over and felt around the engine and it wasnt even hot.

Then I got back into my truck and a few seconds later the temp gauge jumped back behind 210 and stayed there. CaptPKelly answered 5 years ago. This is a sure sign of a stuck open or missing thermostat a weak water pump but rare if the water pump is not leaking or a heavily rusted radiator or a bad fan switch if you have an electric radiator fan.

9 people found this helpful. The phone number is 9714-314-3408. I hope the issue is able to be resolved for you quickly.

I have acadia 2008 runs 142000 kms and I live in kuwait since yesterday the temperature gauge started go up and down frequently between 100 middle and two or three lines up while driving or stopping and ac is on. The reasons for the failure of the water pump malfunction include seal leakage shaft breakage and casting breakage. It is one of the reasons why your car temperature gauge suddenly goes up.

A failure of the head gasket is one of the worst possible conditions responsible for your cars temperature gauge goes all the way up. One very cold morning zero degrees Fafter sitting in the drive way all night the coolant temp gauge started fluxuating while I was driving. Up until this time the truck would always sit at 210 degree any time of the year.

On this day it warmed up to 210 then would go to 230 then go back down to 190 then back up to 210.