Engine temp fluctuating

[Dengitpeter]

For starters, I've had the radiator, water pump and thermostat housing replaced already. Car was then running fine for a couple weeks. Now my EPC light is on, check engine light on. Car takes awhile to warm up and when it does it fluctuates all the way to the red and down to cold. A mechanic told me it would be the engine coolant temperature sensor, another told me I had to replace my head gasket. There is no signs of a blown head gasket. No white residue under engine oil cap, no white smoke. Is this guy trying to scam me?

Just trying to see what you guys think it might be. Thanks.

I have also included pictures of what the mechanic saying I need to replace my head gasket. Those are the codes that are being shown.

 

[Dengitpeter]

Trying to get peoples honest opinion before going to another shop.

 

[MeltedSolid]

Someone had this exact issue a while ago. I don't remember what the solution was, but I think the coolant temperature sensor going bad is most likely.

 

[jimlloyd40]

Until you get the EPC light problem fixed I wouldn't do anything. The coolant temperature sensor should be simple to verify.

 

[gdub09]

Most likely a faulty coolant temp sensor. Replace that, clear faults, and re-check.

 

[Dengitpeter]

alright thanks for the advice, that was going to be the next thing I'll be fixing. Let me know if you guys had a similar issue.

 

[Dengitpeter]

got both engine coolant temp senor changed, still same thing. epc still on check engine light still on.

 

[Dengitpeter]

also got auxiliary water pump replace. nada. might need to go to vw dealer to get a real reading

 

[gdub09]

You've got a bad thermostat then

 

[Dengitpeter]

You've got a bad thermostat then

i got the thermostat housing replaced 6000 miles ago. could it be going out already?

 

[imthanick_a]

i got the thermostat housing replaced 6000 miles ago. could it be going out already?

housing =/= thermostat

 

[gdub09]

i got the thermostat housing replaced 6000 miles ago. could it be going out already?

could have been bad out of the box