My temperature gauge goes up and down

1Radiator my mechanic said it was leaking–same problem after the repair. Temperature gauge goes up and down temperature suzuki v6- The temperature gauge is going up and down.

I changed the thermostat within the last 30k so Im ruling that out unless it really went bad that fast its only been.

My temperature gauge goes up and down. Reasons Why Your Cars Temperature Gauge Goes Up and Down. There are several reasons to why your car cant keep the ideal working temperature. These are the most common issues you can encounter.

This is the simplest issue to fix and the least dangerous one for your cars health too. The primary reason your car temperature gauge goes up and down while driving is simply because a component in your cooling system is not functioning correctly. This could be the thermostat valve radiator hoses radiator fan the temperature gauge or the coolant itself that circulates around cools off the engine.

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. The Reasons for a High-Temperature Gauge.

If your car temperature gauge rises it may be overheating. And another cause of an increase in temperature is that you may be losing coolant. A minor leak or evaporation could cause cool coolant loss.

A malfunctioning thermostat could be the reason your temperature gauge is reading high. If your temp gauge is not staying stable it keeps going up and down and you have PO300 code you will have to troubleshoot the problem until you find a solu. What would cause my temperature gauge to go up and down.

The most likely cause of a temperature fluctuations is either a flauty temperature sending unit air in cooling system or a defectective cooling fan. If the engine temperature is stable when driving at highway speed and temperature rises when idling or in traffic the fan is the cause. Temperature gauge goes up and down temperature suzuki v6- The temperature gauge is going up and down.

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. 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. Gasket has been replaced at that time but after 600 hundred km without any issue i am facing this constant problem of the temperature gauge going crazy and for whatever reason it comes from 90 steady up to 120 in about 30 to 40 seconds and then it comes back down while im still driving and then all the cycle again up and down up and down sometimes more than 120 and soemtimes less.

If the needle goes to about the middle of the gauge that means the engine has reached normal operating temperature usually between 180 an 210F. It goes up quickly after starting then stabilizes. On October 23 2016.

Ok so my temp gauge is fluctuating sometimes alot more then some it goes all the way up to overheat then goes back down to normal i just replaced thermo stat burped the radiator then a little bit ago it started fluctuating alot more and now when i get done driving it theres alot of antifreeze in the overflow tank and i. 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. 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. When the coolant goes through the heater core it gets cooled off enough that when it returns the thermostat closes again momentairly. So the temperature goes up and the thermostat opens again and then it goes back down.

If it went up and stayed up you might begin to be concerned. Hello all my 2014 will be at normal operating temperature and occasionally the temperature gauge will drop to the bottom of the scale and the fans turn on and then the AC will stop blowing cold air. If I shut it off for 30 seconds or so.

It will then go back to normal once I restart it. Oct 15 2011. I was driving my car today and noticed the temperature gauge wouldnt go past the the top of the 2 bottom bars.

It fluctuated up and down depending on if I was on the gas or on hills a few millimeters. I changed the thermostat within the last 30k so Im ruling that out unless it really went bad that fast its only been. Doesnt do it until it gets up to normal operating temp.

Sometimes when it does it my truck sputt. I have a 2007 B7 30 TDi with 135000 miles and currently when on the motorway cruising at 65-75 mph the temperature gauge fluctuates to over 100 goes into limp mode so I slow down and the temperature quickly returns to 90 and limp mode turns off. On a couple of occasions the coolant level warning light has come on too.

Im so frustrated with my 2007 ES350 Lexus. The temperature gauge goes up to the red then goes back to normal. Engine seems not really overheating.

My mechanic replace the following one after the other. 1Radiator my mechanic said it was leaking–same problem after the repair. Joined Apr 5 2010.

4 Sep 10 2015. This is why most cars come with a temp gauge that stays in one spot even though the cars temp fluctuates. Weekend warrior - 05 S2k.

Turbo TUNE 14PSI 450whp295wtq dyno dynamics - 123121. If your car thermostat goes up and down then chances are that there is a connection problem between the temperature sensor and the temperature display positioned inside your car. Its wire might have become loose due to which you must be getting false indications.

I have the over flow tank hooked up properly and coolant expands into the tank when hot and sucks back into the system when it coold down. Im thinking it is either my gauge my sending unit or something terrible like a head gasket leak pumping combustion gas into the coolant jacket. Edited by Big6ft6 on 12-31-09 0238 PM.