Question about 1983 Nissan 280ZX

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Temp gauge in car

I have a nissan 280zx and have changed the water temp sensor as well as the thermostat, but the gauge in the car still shows high temp. The coolant level is good what else can I try?

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Tempture should be abetween 140 and 220F, any where close to that????
do the meter read when you turn the key to ACC of ON????
if so, you have short.

Posted on Sep 30, 2008

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I have a 2008 Chevy Colorado and today my temp


when a temp gauge drops to cold ,it indicates a problem in the cooling system
temp gauge sender units need water to activate the resistance that makes the gauge read so a falling gauge indicates no water around the sender unit --- air lock in the system--faulty wire connection to the gauge sender unit
the ac unit is not connected to the temp gauge so there may be another separate problem there
the temp sensor is an entirely different unit to the temp gauge sender unit and the short term working would be from an altered coolant level from changing that sensor --air lock in system
the temp sensor connects to the ECM to activate the fans and monitor engine operating temp so as to keep the air/fuel mixture exact for the engine conditions
the temp sender unit just makes the temp gauge read
a faulty thermostat will either be stuck open and the engine temp will take a long time to rise or it will be stuck closed and that will cause an overheat very quickly

Sep 11, 2014 | 2008 Chevrolet Colorado

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My 02 nissan xtera is idelin high only in park sometimes , also my temp gauge jumps from hot to cold and vise versa ???


temp affects the amount of fuel injected into the engine so this is all connected ,,,, could be faulty temp sensor or you could have a faulty thermostat ,,,,

Dec 06, 2013 | Cars & Trucks

1 Answer

Overheating


it could very well be a bad gauge. when it shows the engine to be overheated or at the least very hot, check the actual temp at the water outlet where the upper radiator hose attaches to the engine. use a non contact thermometer to check the temp so as not to get burned in the process. if the thermometer reads way different than the gauge, the gauge is bad.

Apr 05, 2013 | Mitsubishi Montero Sport Cars & Trucks

2 Answers

97 chevy S10 blazer V6 4.3 temp gauge stopped working, and I already replaced the ECT sensor, still no luck, what else can it be?


Hello insta5,

There are two temp sensors, one is for the ECM and the other is for the instrument panel gauge.

The one located just under the thermostat goose neck is the one for the gauge. See picture below.



Regards,
netvannetvan_54.png

Apr 02, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

Are there problems with the thermostat gauge not show proper temperture readings. 1999 vw jetta 2.0 gauge shows no temp reading. Is it a bad thermostat and needs to be changed. And can you harm the...


If you are not getting a signal to your gauge, your car can still run. You just won't know if your car is overheating until it is too late. A bad thermostat won't keep your gauge from working. The temperature sensor that sends the signal to the gauge will keep it from working.

The thermostat helps your car in extreme weather. It helps your engine warm up in extreme cold so your heater will work sooner. And it helps you car cool itself off in extreme hot weather. As your engine water temp rises, the thermostat will open allowing the water in the radiator (that has been cooling) to flow into the engine block. The water that was in the block will go into the radiator to begin cooling.

In fair weather, you don't need a thermostat.

Oct 09, 2010 | Volkswagen Jetta Cars & Trucks

2 Answers

Temp Gauge went to high


It could be 3 things: Temp sensor, thermostat, or fan relay. Fans don't usually turn on until car has been idleing for a while. I first would change thermostat, then relay, then temp sensor. Coolant must be 50/50 mixture for water pump to have proper lubricant from antifreezer. Do not go any further than a 60water/40antifreeze mix

Jul 08, 2009 | 1999 Honda CR-V

1 Answer

Overheating


did u use oem thermostat or at local auto parts? if oem u ok,did put back the plug on temp sensor?did u burp the water line after you change thermostat?

Jun 05, 2009 | 1993 Saturn SC1

1 Answer

93 jeep wrangler 6 cyl. my temp gauge never shows full temp. only goes to about 130 degrees. I have a 195 oem thermostat but still gauge does not climb above 130,...bad gauge, wiring???


Assuming the t-stat is good, I'd look at the wiring next. Make sure the connector is clipped onto the water temp sensor/back of the gauge and that the wiring is not chaffed, etc. If that all looks good, replace the coolant temp sensor...they're $20 or so. If it still does it, the gauge is bad.

Apr 15, 2009 | Jeep Wrangler Cars & Trucks

1 Answer

97 Hyundai Lantra. Temp gauge shows engine very hot


If the replacement thermostat is good, and installed properly, then the temp sensor might be bad. I hate to tell you ($$$$$) but waterpump could be bad (more expensive)

Feb 21, 2009 | 1997 Hyundai Elantra

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