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Old 01-14-2019, 02:16 PM   #1
Snowmanmk7
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Strange Water and Oil temp

This morning when I drive at highway, I realize the water temp was like about 70plus degree and the oil temp was also around 70plus degree.
Later part of the day while I drive, the Check Engine Light pop out. the water temp needle is at 0, not moving up at all. Oil temp still hover around 70-80.
Then I went to the workshop, while driving to the workshop, the water temp goes up again to 70plus degree while oil temp still hover around 70-80degree.
Upon reaching the workshop, found that the coolant level was a little below the Min mark. Mechanic plug in the OBD and it say coolant level low. So the mechanic top up the coolant and clear the fault code.
When I drive home, the water temp remain the same at around 70plus while the oil temp also around 70plus.
Felt it’s very strange, if coolant is low, shouldn’t the water and oil temp increase instead?

2days ago, I change the Intercooler, charge pipe and water pump

What could be wrong? Usually my water temp is around 90degree and oil temp around 95++degree...��

Last edited by Snowmanmk7; 01-14-2019 at 03:15 PM.
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Old 01-14-2019, 06:46 PM   #2
Julian Ortiz
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Their could be an air pocket in the cooling system.
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Old 01-14-2019, 11:31 PM   #3
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Thermostat not closing?
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Old 01-15-2019, 02:07 AM   #4
Snowmanmk7
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This morning without starting the car, I check the coolant reservoir, the coolant level in the reservoir drop over night (after parking for about 10hrs). It’s that normal?
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Old 01-15-2019, 02:26 AM   #5
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how much did it drop? Most likely not normal with the earlier symptoms you described.
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Old 01-15-2019, 02:33 AM   #6
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fill to middle of low and high
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Old 01-15-2019, 02:57 AM   #7
Snowmanmk7
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Quote:
Originally Posted by navindralr View Post
how much did it drop? Most likely not normal with the earlier symptoms you described.
Itís drop abt 1.5cm (now is at the Max line). Then again, yesterday the mechanic top up was when the engine was hot(after drive, he top up to about 1.5cm above the Max line
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Old 01-15-2019, 02:58 AM   #8
Snowmanmk7
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Quote:
Originally Posted by Diggs24 View Post
fill to middle of low and high
When the engine is cold?
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Old 01-15-2019, 03:12 AM   #9
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yes cold. Don't open that cap when the engine is hot.. it's pressurized.. You could get a nasty burn. Also some residual fluid will leak back into the overfill container when you depressurize the system.
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Old 01-15-2019, 03:17 AM   #10
Snowmanmk7
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Quote:
Originally Posted by navindralr View Post
yes cold. Don't open that cap when the engine is hot.. it's pressurized.. You could get a nasty burn. Also some residual fluid will leak back into the overfill container when you depressurize the system.
So u think the drop is normal? From hot to cold
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Old 01-16-2019, 09:05 AM   #11
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Problem solved. Now car is back to normal. It’s Faulty thermostat control circuit. Got the whole water pump assembly replaced for a new unit. Thanks guys for the help ✌��
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