Wont go over 20 mph 2002 Chevy Blazer 4.3L
just over 60,000. It had been sitting for 7 years. I have dropped and cleaned the gas tank. Replaced fuel pump and fuel filter. I… Read More »Wont go over 20 mph 2002 Chevy Blazer 4.3L
just over 60,000. It had been sitting for 7 years. I have dropped and cleaned the gas tank. Replaced fuel pump and fuel filter. I… Read More »Wont go over 20 mph 2002 Chevy Blazer 4.3L
idles for 10 minutes then cuts out any advice please? When it dies and will not start, look for what it is not getting. Most… Read More »1995 Honda Civic LX dies after 10 minutes
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I have a 2002 Chevy Camaro. Today as I went to put it in park it wouldn’t go. So I pulled up the emergency brake… Read More »2002 Chevy Camaro wont go into park

If my heat gauge is reading all the way hot but motor and coolant is only warm to the touch and no smoking or boiling over would it be the thermostat?
Probably Not. The heat gauge uses a ECT Sensor to indicate the engine coolant temperature. Sometimes if there is an air pocket the sending unit will read hot until the cooling system is properly bled. Once the system is properly bled you can use an infrared hand held temperature gun to check the accuracy of the gauge.
The first thing I would check would be the coolant level. Also confirm the temperature gauge sending unit wire is connected. If it has become disconnected it will read full hot all the time with Key in ON position.
If you just worked on it and are now having the issue, check around the area you were working to make sure you didn’t accidentally leave a wire disconnected.
You can check the the sensor by removing it and using checking the resistance ohms.
| Specifications | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Application | Resistance (Min-Max) Ohms | Temp ºF (ºC) | |||||||||||||||||
| EX | 15000 – 20000 | -4ºF (-20ºC) | |||||||||||||||||
| 5000 – 7000 | 32ºF (0ºC) | ||||||||||||||||||
| 2000 – 4000 | 68ºF (20ºC) | ||||||||||||||||||
| 900 – 1200 | 104ºF (40ºC) | ||||||||||||||||||
| 300 – 400 | 176ºF (80ºC) | ||||||||||||||||||
| 100 – 300 | 248ºF (115ºC) | ||||||||||||||||||
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