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post #1 of 5 (permalink) Old 11-08-2018, 07:50 AM Thread Starter
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Temp gauge reading

Hi,
I am new to this forum and looking for a solution for my issue. I am using 2005 Mazda 6 and when I start my car, the temp gauge not moving up to the operating temp(middle). It takes long time to move up(little in winter) and still same in summer. When I asked from the previous owner, he said that its normal for Mazda. When I turn A/C on, some times I feel I don't get cool air, but some times get. When I turn the heater(32 degree) in the morning, it takes long time to heat inside. Can any one give me a solution, or the procedure to check this. Is it normal?

Thank you,
Uditha
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post #2 of 5 (permalink) Old 11-08-2018, 08:07 AM
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Quote:
Originally Posted by udithas View Post
Hi,

I am new to this forum and looking for a solution for my issue. I am using 2005 Mazda 6 and when I start my car, the temp gauge not moving up to the operating temp(middle). It takes long time to move up(little in winter) and still same in summer. When I asked from the previous owner, he said that its normal for Mazda. When I turn A/C on, some times I feel I don't get cool air, but some times get. When I turn the heater(32 degree) in the morning, it takes long time to heat inside. Can any one give me a solution, or the procedure to check this. Is it normal?



Thank you,

Uditha


As far as the heat Iím not sure if you have the I4 or V6 but on my 07 V6 it takes a good 5-10 minutes for the temp gauge to even start moving in the winter you wonít get heat until then either as the heat is produced via the engine coolant this is why I had a remote starter installed on mine


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post #3 of 5 (permalink) Old 11-08-2018, 12:07 PM
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Sounds like either someone removed the thermostat or it's stuck open which is why it takes so long to heat up.

The air conditioner sounds like it's low on refrigerant. Needs to be charged.

Needless to say these are "best guesses" as it's impossible to diagnose over the internet but a good place to start for both issues.

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post #4 of 5 (permalink) Old 11-08-2018, 12:28 PM
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Quote:
Originally Posted by udithas View Post
Hi,
I am new to this forum and looking for a solution for my issue. I am using 2005 Mazda 6 and when I start my car, the temp gauge not moving up to the operating temp(middle). It takes long time to move up(little in winter) and still same in summer. When I asked from the previous owner, he said that its normal for Mazda. When I turn A/C on, some times I feel I don't get cool air, but some times get. When I turn the heater(32 degree) in the morning, it takes long time to heat inside. Can any one give me a solution, or the procedure to check this. Is it normal?

Thank you,
Uditha




I have a 6i and have noticed in colder temps it does take some time to warm up and for the temp gauge needle to move toward the operating range (the middle). Once it’s at operating temp it pumps out the heat as normal.

As for your AC, I am not sure about that since I just recently bought this car so I’ll see next summer how the AC works.
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post #5 of 5 (permalink) Old 11-09-2018, 07:20 AM
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From my experience with the '03 6i 2.3L 4 cylinder it does take a few miles before the engine is up to operating temperature. You can us an OBD scanner to check to see what temperature is being reported to the computer. If you don't have one, the local auto-parts store will most likely lend you one.



Your temperature gauge moving very little along with a lack of heat strongly suggest that there is a problem with the cooling system.

As @idrive stated earlier, the thermostat is a likely suspect. The thermostat is designed to be closed below 180*F (82*C) so that the engine can warm up.
The radiator cap will probably need to be replaced too, the gaskets don't last forever. It will probably help with your heating issue and is a cheaper fix.

The local auto-parts will probably may also have a loaner pressure tester for the cooling system, which should have an adapter to check the radiator cap.
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