GlowShift 44mm 1-3/4" Radiator Hose Attachment Adapter for Water Coolant Temperature Gauge Sensor - Includes Hose Clamps. 48. 4.8 out of 5 stars 17. The coolant temperature sensor would therefore only react at about 110 deg C. and switch on the coolant warning (I don't know the exact temp. 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 can see that it comes out of the top of it to. Get a device to plug into that port to read the coolant temperature. If your car was built before 1996, install a mechanical coolant temperature gauge made by a reputable company; If your car is older than 1996 it will have an OBDII port. FREE Shipping. 4.6 out of 5 stars 54. Coolant Boiling But Gauge Indicates No Overheating! If you have the supplies on-hand, consider topping off the radiator with a 50/50 mix of antifreeze and water or a premixed coolant. 99. When this is not functioning properly, the result can be catastrophic overheating of your car’s engine. coolant is full but it overheats on short outing...temperature gauge reads cool yet the coolant is boiling when on highway the temp goes back to normal but in town will overheat...thermostat was replaced last year yet the vehicle right after replacement read hot but coolant was not hot now it is reading cold yet boiling...reservoir is full and coolant is full im at a loss Im pretty certain the gauge is working because the mini was overheating earlier this year due to a seized cooling … FREE Shipping. $18.99 $ 18. In ideal situations, your needle will maintain a posture right in the middle of your gauge. The temperature of the coolant can rise above 212F degrees because coolant is pressurized (NOT because the water is mixed with antifreeze). The coolant is expanding in the expansion tank and leaking but the temp gauge suggests that the engine is not overheating. As the thread title said having taken the car for a long trip during the week (mostly motorway driving) and stopped in a cloud of steam as coolant was bubbling out the overflo tube on the expansion tank and spraying on the hot engine. Most experts agree that your engine should run between 195 degrees and 220 degrees. and it will further heat up and once it reaches about 110 deg C. you will get the warning. Ill turn it off, check the coolant and looks normal and turn it back on and it’ll go away. The fact that the coolant was boiling out of the reservoir cap suggests that the thermostat may be stuck closed. Coolant reservoir boiling out but temp gauge normal. My coolant barely went over 200 and my oil got to 230-240 before I went for cool down laps. The odd thing is that the temp gague on the dash shows normal opperating temp! when I was under the hood I noticed the top radiator hose felt like there was no water going through it … So what's a normal temperature for your vehicle's engine? The normal operating temperature of the coolant in an engine is about 210F to 240F degrees. I’ll turn it on and it’ll start fine but the coolant temperature gauge so all the way to the hot when ive never started it in the day. I was just tracking my car in 100f weather with the mishimoto radiator and oil cooler. Normal engine coolant temperature depends on a lot of factors. Normal Temperature engine temperature gauge. (2002 Ford Taurus) so I thought maybe the temp sensor was bad because the res was boiling. You should be letting it get up to that temp before spirited driving. When the engine reaches a certain temperature, it opens allowing coolant to flow through the radiator and then to the motor. And, normal operating temp should be around 200 for both coolant and oil. Mechanical Water Temperature Gauge, 2-1/16 Inch, White. If the temperature gauge consistently shows the engine is … $39.48 $ 39. - posted in Injection Mini Specific - SPi/MPi: Hello folks, I have a 97 MPI with a weird cooling problem! The thermostat OPENS at 195F degrees; but, the temperature continues to rise to the normal operating temperature. I have a 04 dodge ram 1500 5.7 and this problem recently started. for the 335i) But if there is leak, coolant will start boiling at 100 deg C (on sea level). Port to read the coolant and oil cooler coolant barely went coolant boiling temperature gauge normal 200 and oil... Antifreeze ) temperature gauge consistently shows the engine is … coolant boiling But gauge Indicates No!. Consistently shows the engine is not functioning properly, the temperature continues to rise to the normal temperature! 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