Hi @jamesjew, Since you are experiencing no overheating problems the most likely cause is that the engine coolant temperature sending unit is faulty. A few months ago the temperature gauge started reading hot.I can get in my car and drive on the highway or around town and the temperature gauge will read completely normal, but after about 20 minutes the needle will start to rise getting as high as the red. 2004 Honda Civic, replaced thermostat, temperature gauge sending unit, still having problem - temperature gauge slowly moves up to almost "H", the other day I ran an errand, started car back up and ga … read more 2004 Honda civic temperature gauge goes up and down , fluctuates if use heat . Knowing that your car engine is going over its normal operating temperature, will help you prevent serious damage and costly repairs. What to do if This gauge on your Honda Civic lets you know the engine temperature at any given moment. 1996 Honda Civic DX. car is a 1996 Honda Civic EK hatchback. On the third time trying to start it none of the lights came on, so I changed the battery. I have a 01 Honda Accord V6 EX or LX Sedan. gauge starts going up when I idle/stop & goes down when I go up to a good speed.? This is normal. I’ve had taken it to get it checked out and no one seems to know what the problem is. We recently changed the thermostat so I'm at a loss. The thermostat on my car fluctuates from time to time. 1997 Honda Accord / My temp gauge goes up and down My temp gauge goes up and down (1997 Honda Accord) When I'm driving the temp will start going up as soon as I stop somewhere. Number one is when I am driving it in any speed but 80 the engine thermometer goes up and down consistantley. Need help The temperature gauge goes up and down and idk why it does that. The temperature gauge kept going all the way up when I idled, went back to the middle when I accelerated. But when I … Generally, a rough idle is caused from a difference in how much air the engine computer sees coming in, and how much is actually there. i have a 01 honda civic ex vtec, i noticed for about a week now when i park or drive on a hill my car seems to try to over heat, the gauge goes from the middle toward hot . temprature gauge goes up and down My girlfriend owns a 2000 Honda Accord. When ti the mechanic and change the When I'm driving with my A/C on, my temperature gauge is in the middle. I have this recurrent problem with my 2002 Honda CRV. Why does my temperature gauge go up and down - 1997 Honda Civic Close When Im driving my 91 honda civic hatch it runs fine. Question from Mr Wilson831 in Salinas, CA | Find answers to your 1997 Honda Civic question from certified mechanics and auto experts. Heater worked fine and gave hot air as usual and temp. You Radiator fluid level is in Oil is fine, radiator is full, reserve is full. About 3 weeks ago I went to start up my 2009 Honda Civic Sedan lx and lights came on and everything but wouldn't start. I have a 2005 Honda Accord LX. It would remain at 1/2 mark after warming up but while driving it would sometimes go all the way to 0 and then I have a 05 Honda Civic EX, my temperature gauge has been going up and down. Again, I drove car and temp gage came right down to normal. When heater 2003 Honda Civic 2 door coupe - I start up the car, it warms up fine, maybe a little longer than normal, and as I drive away, the car drives fine, normal operating temp, (just below the half mark). new sending unit, same. I had the radiator, temp.sensor and hoseclamp replaced about 6 months back and had an oil change 1 month back. B16A2 DOHC VTEC engine. Tonight I took it out for a short trip after having driven about 150 miles earlier today. gauge goes all the way up slowly, but then if you turn off the key and … read more Thanks in advance for your help! A Honda with a rough idle isn't terribly uncommon, especially in older Civics. But the heater is blasting cool outside air and the temperature gauge starts ticking up. It will go up to the H but never reach the top completely, then once I begin driving again it will slowly go back down to the middle point. My cars temperature gauge (while driving) goes down to about 1/4 but then when i stop or go idle, the temperature gauge slowly goes right to the middle. I have a 1997 Honda Civic and it has been running well...just had major work done a few months ago (belts, cv joints, tires, alignment, etc.) It even does it when the ac is off, not sure if that matters or not Hi there. Just noticed this today. Replacement thermostats come in varying temperature ranges, and you can typically go up or down 10 degrees to fine-tune engine temperature for the application. heat goes hot and cold . Temp. radiator was replaced . gauge came down a bit.-When heater on, radiator fan started up and continued running till heater switched off. AC fan still not running but no clicking sound now. It can provide you with an early warning of a potential problem — and on rare occasions, it can even malfunction. They’ve check the entire cooling system and they have not found The temperature gauge on your dashboard is an important indicator of your engine’s running condition. 92 Accord temperature gauge goes all the way up, engine not overheating, not even warmed up all the way. I pulled over, let it sit, take the radiator cap off (with some winter gloves and a towel so I don't burn the crap out of my hand), and throw some water (maybe 0.5L) in. No matter The temperature gauge goes up and down. My cars temperature gauge (while driving) goes down to about 1/4 but then when i stop or go idle, the temperature gauge slowly goes right to the middle. Your Honda Civic's engine is designed to heat up to an operating temperature as quickly as possible. My 2004 Honda Civic with 112,000 miles has never had issues before.In June on a hot day I was driving a two hour trip with AC on when I noticed about an hour into the trip my temperature gauge running hot about 3/4 when it normally runs less than half.half. There is another coolant temperature sensor close by which sends a signal to the ECU to help... - 1994-1997 Honda Accord Q: Driving my car when I was about to get to my destination I realized my car was over heating but the temperature gauge never show high temperature or something like that. Radiator cap has been replaced, along with other minor "solutions". when im not on a hill its fine and stays in he middle like normal. I was wondering what this issue could be, hopefully it is very inexpensive being I'm on a college student budget. Last year my temperature gauge started acting up. This article applies to the Honda Civic (1992-2000). Hey guys, I drive an 02 civic ex with just a little over 91,100 miles on it. The temperature gauge in my car goes up and down. If the needle goes to about the middle of the gauge, that means the engine has reached normal operating temperature, usually between 180 an 210 F. It goes up quickly after starting, then stabilizes. I noticed that today the temp gauge went up to 3/4 then back down to normal (just a little below half) on my drive home from work. A … When the temperature is reached, coolant is allowed to flow into the engine block to keep the temperature constant. This sends a signal directly to the dashboard gauge. 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