Ve 2010 sports wagon

[Vegimite]

Hi all I am left scratching my head have had two mechanics look at my ve engine light on code 1028 not reaching running temp thermostat sensor replaced all has been checked and according to them the thermostat is working car does not use water or over heat mechanic said when engine light on car idles rough when engine light off car runs fine ,has anyone had this issue.ps could it be computer related thanks

 

[Fu Manchu]

P1028? Was there a letter prefix before it?

There is a thermostat (which requires gearbox removal to replace) and there is a coolant temp sensor. Very cheap and easy to replace.

 

[Fu Manchu]

If the car is not reaching running temp, the coolant sensor could be faulty.

The thermostat could be stuck open.

 

[Vegimite]

P1028? Was there a letter prefix before it?

There is a thermostat (which requires gearbox removal to replace) and there is a coolant temp sensor. Very cheap and easy to replace.

Yes coolant sensor replaced both mechanics say thermostat is fine,car is reaching running temp code is p0128 thanks

 

[VTS5]

Try third or second hand CTS,(New means,never been used,doesn't mean working),

Make sure cooling fan isn't running as soon as the engine starts.

Make sure proper mixture of red coolant in the system.

If all fails, make sure thermostat not STUCK open..

 

[Vegimite]

Try third or second hand CTS,(New means,never been used,doesn't mean working),

Make sure cooling fan isn't running as soon as the engine starts.

Make sure proper mixture of red coolant in the system.

If all fails, make sure thermostat not STUCK open..

Thank you

 

[krusing]

Make sure there is Thermostat in it!

if it's a V6, I would say the TS is cooked, being where its located,

Replace that first, as that will be the cheaper option.

 

[Vegimite]

Make sure there is Thermostat in it!

if it's a V6, I would say the TS is cooked, being where its located,

Replace that first, as that will be the cheaper option.

Coolant temperature sensor has been replaced engine light disappeared for a few days but back on everything checked by mechanic light is off again we will see what happens thanks

 

[krusing]

The other thing to check, is the TS plug, as it may have a damaged terminal or similar,
I have read that a couple had weeped out of the top of the TS and had corroded one of the pins/terminals, so that was causing a resistance and triggering the MIL.

 

[Vegimite]

Thanks