Question about 1992 Chevrolet C1500

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Temp gauge bouncing

Temp gauge not steady

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First, try checking the connections behind the dash that link together at the temperature gauge and make sure they haven't torn or ripped. If that doesn't help, then check/replace all the sensors which relate temperature to the gauge, ie: air temperature sensor, coolant temperature sensor, etc...Hope this helps, good luck.

Posted on Oct 24, 2008

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morse008
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SOURCE: 2004 Nissan Maxima temp gauge fluctuation

well the temperature control gage is connected to the engine block and consists of 1 wire for the reading of the motor heat either the sensor is going bad or you need to check your coolant levels in the radiator make sure the engine is cool before opening the thermostat cap to the radiator so not to get burnt ...also make sure the wire itself is not grounding out on the engine block to give the gage to give such a readout look to the engine and usually on the drivers side lower the plug wires you should see a plug with a wire coming from it ensure the wire is not rubbing on anything .

Posted on Oct 02, 2009

6ya6ya
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Posted on Jan 02, 2017

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Temperature and depth reading is bouncing around all over. Is that something I can fix???


Popular Mechanics - Jan 1961 - Page 139 - Google Books Result

https://books.google.com/books?id=XNsDAAAAMBAJ
Vol. 115, No. 1 - ‚ÄéMagazine
Right, plates of full depth and weight ... Loose hold-downs - bouncing arounddamages a battery several ways ... Excessive loads - using the starter to move thecar should be only a ... ask for a temperature-corrected hydrometer reading, which should be 1.260 specific gravity. ... All this is dependent on the individual car.

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temp gauge bouncing around before going to center? ' Yahoo Answershttps://answers.yahoo.com/question/index?qid...Sep 28, 2013 - I called my mom and we switched cars and she didn't see anything ... Best Answer: If the temp gauge is literally "bouncing around" this is more ...Why is my temperature gauge jumping?Jan 1, 2013Temperature gauge bouncing.?Dec 18, 2008What does it mean, when my coolant temp needle jumps up and ...Oct 3, 2008My car temperature gauge keeps bouncing around from cool to red ...Dec 12, 2006More results from answers.yahoo.comTemperature Gauge Jumping Around an

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1 Answer

Mariva 1.4. Why does temperature gauge reading fluctuate?


check grill and radiator fins are not plugged and fan is not damaged and is working.
sounds like a thermostat or water pump issue.

Jan 09, 2016 | Vauxhall Cars & Trucks

1 Answer

2005 chevy equinox. The needle on the temp gauge is normally steady but from time to time swings back and forth from hot to cold and then normal, it also shows a code of p1245. What could be wrong??


The code P1245 is for the Intake Plenum Switchover Valve.

This probably has nothing to do with the gauge fluctuations. The gauge problem is probably one of three possibilities:

  1. Low coolant level in the system. When coolant levels get low, air moves thru the system and when it reaches the temp sensor, will cause fluctuations.
  2. Defective coolant sensor. These can fail over time as do all sensors.
  3. Defective gauge in the dashboard.

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1 Answer

My speedometer and rpm gauges keep going on and off in my 2001 Oldsmobile aurora What could be the problem


Gauges need a steady constant voltage, not affected by alternator variation so a voltage stabilizer is used to keep the voltage constant, possible intermittent fault (bad connection) to the stabilizer, generally located on the back of the clock panel. Are the fuel and engine temp gauges affected as well?

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1 Answer

Will not start after warm-up


Try putting a fuel pressure gauge on the injector fuel rail. Start the engine then turn it off, the pressure should hold steady not drop to zero. If it drops you have a bad injector leaking fuel into the engine. Also smell the oil to see if it smells like gas.

Dec 14, 2013 | 2002 Chevrolet TrailBlazer

1 Answer

When jackaroo 1988 is motoring where does the needle in the temperature gauge normally be


If your temp gauge has only the cold (C) or hot (H) letters then the operating range would be the width of the needle under 1/2 way between c and h. If it remains steady at slightly over 1/2 way that would be just the setting of the gauge. How to get to know where the needle would sit at a specific position in relation to water temp. Do the following
Remove the temp sender unit and attach an earth wire to the body of the unit to earth. Place the sender unit in a container of water up to the threads .Put a mercury thermometer in the container beside the sender unit Apply heat to the container and watch the gauge needle move in relation to the thermometer reading. Operating temp will be about 80 degrees C on the thermometer and that would be about 1/2 way on the gauge.

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1 Answer

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sounds like system my be low on coolant

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1 Answer

My jeep 2000 module temp runs at 200 steady no leaks runs good starts good ?


That is a proper operating temp. after the thermostat opens. If it reads 200 degrees when cold you need to check your temp gauge and sensor.

Apr 30, 2012 | 2000 Jeep Grand Cherokee

2 Answers

Voltmeter doesnt stay steady it bounces around between 9 - 14 on the gauge. rpms run normally about 500 - 700


what model car have you ,, the rpm seems a little low ...too slow a speed coupled with a loose fanbelt would cause your problem

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