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Jul
Now the temperature gauge still jumps right to the red zone all the way to the right. The needle may rise above the midpoint if you are travelling up a long uphil.
After about 1 minute as the engine warms the gauge begins to move and makes a steady march straight to the max hot range and stays there without dipping moving or twitching.
Temperature gauge goes straight to high. Thinking about it most of the gauges will peg full-scale if theyre powered but the signal terminal isnt connected at all. If they do this they should read zero when the signal terminal is grounded. If they do both of the above the gauge itself is probably fine and.
The needle may rise above the midpoint if you are travelling up a long uphil. 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.
After about 1 minute as the engine warms the gauge begins to move and makes a steady march straight to the max hot range and stays there without dipping moving or twitching. So long as the engine has any temperature whatsoever after being off for a couple of hours but not cold when the key is turned on the gauge heads straight to the max hot area. Temp sender unit is faulty.
Remove the sender unit wire and earth it against the bodywork and the gauge should go straight up to hot. This indicates that the gauge and wiring is. Temperature Gauge is always reads hot before even starting driving Hi after just starting the contact without turning on the engine the temperature gauge needle starting to raise and stop on the middle and after starting the engine the needle starting to raise immediately until reaching the H mark in a matter of seconds is the problem in the temperature gauge itself or in something else.
Also check that the lead to the sensor isnt being pushed on too far and bridging over the connector tab onto the body of the sensor so that it is shorting to earth and causing the gauge to read high temp. Also if the engine timing is off the engine running too lean or the exhaust is plugged catalytic converter those conditions can cause the engine to overheat. Quite a number of possibilities have to be looked at.
If you want to rule out the worst certainly you could check for exhaust. When I told my brother this he agreed that it had to be that because everything that was happening with my car was exactly what it was doing no heat temp guage being at 1200 oclock position unless stopped by red light andor traffic then it moving up quickly to the red which when it got to the 100 oclock to 130 position I turned my car off no matter where I was pulled over if I had to just so I could. This morning I had a problem starting the car as it was -22F and when I finally started it my temperature gauge shoots up to the red zone.
I got scared so I turned off the car immediately. I came home and started the car again without any problems it got warmer. Now the temperature gauge still jumps right to the red zone all the way to the right.
The temp sensor is a variable resister. Low resistance high temp. High resistance low temp.
From the gauge a blue wire number 359 runs to the temp sensor. My guess is it has shorted to ground. Disconnect the temp sensor.
If the gauge still reads high look for a short in the blue wire. If the gauge no longer reads high replace the temp sensor. It can be alarming when you see your car temperature gauge high while driving.
There are a number of things that can cause this but also a number of ways to fix this. Simple things like turning down your AC Unit unplugging accessories etc. Can help reduce the strain on your vehicle.
Gauge goes to HOT immediately sometimes recently had serpentine and power steering belts replaced and put anti freeze in overflow tank and radiator Sounds like when you last had someone work on your car they knocked the wire going to the sending unit off. Temperature gauge troubleshooting begins with isolating the problem either to the gauge sending unit fuse or wiring. As with any electrical troubleshooting it is best to check all wiring connections are clean tight and free of corrosion.
The following process must. Temperature gauge goes to H. Asked by angeliques Jun 29 2014 at 0557 AM about the 2005 Nissan Altima 25 S.
There is coolant in the radiator and the over. Flow and the gauge goes to H for a few. Minutes then back to normal.
Observe the resistance of the sensor as the water temperature increases. The sensor resistance should start out high and drop as the water temperature increases. Check your repair manual for exact specifications and compare them to your readings.
If the sensor falls out of specification replace it. 16 satisfied customers. Gaugeall happened after changing the alternator.
I have a 1997 Ford F150 46 and the temp. Gauge is pegging out all the time. I can unplug the sensor and it will fall plug it up and it will go all the way upThis all happened after changing the alt.
Discussion Starter 1 Aug 14 2013. I have a glowshift yes i know some people like them some dont transmission temperature gauge that always goes straight to 300 max when powered on. I have even taken the gauge and sensor out to make sure wiring was good and it still does the same thing.
Anybody have any advice or run into this. Got a Strange one for yall. 1988 Mustang GT Convertable 52000 miles.
The Temperature gauge goes up about 10 degrees and rests on the 210 mark when the headlights are turned on. When the lights are turned off it immeditly falls back down to normal bout 200 or so. The temperature gauge can show hot without the engine overheating which still means that is a problem.
To tell for sure if it is a gauge or a cooling system problem use a. To check the thermostat housing when the engine is running. It should not be above 210 degrees.
As an emergency you can turn your AC off then turn your heater up full hot fan high - this will help cool your engine as the heater can act as a secondary cooling system - you can open the windows and direct the heat out of those vents - next time the engine overheats try. The one on the rad is the fan switch I believe. The temp sensor should be on upper hose neck on the engine.
Check your coolant level and leak. Air pocket will mess up the sensor reading. In this weather the thermostat should be open all the time anyway.
Recently the temperature gauge has been reading hot all the way up passed the H. The engine however is not running hot at all. Coolant levels are fine and i even have a bluetooth ODB code reader that shows the coolant temperature at around normal nor am i getting any engine codes for the cooling system.
At first i thought it might be the temperature sensor under the hood but now im just thinking the dial is stuck in the wrong position. When i turn the car off and all the other gauges.