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Author Topic: Thermostat or temperature sensor?  (Read 2068 times)

Offline WeekendMechanic

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Thermostat or temperature sensor?
« on: 07 February 2013, 08:49 »
Been reading through previous post but i`m still confused, usual symptoms when driving stays or goes lower than 70 degrees when idle goes to 90.
I`v started from cold and checked the bottom hose it gets warm at 70 degrees so thermostat s does open is this correct?
Or is the temperature sensor not reading properly ?
« Last Edit: 07 February 2013, 08:52 by WeekendMechanic »
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Offline folgate

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Re: Thermostat or temperature sensor?
« Reply #1 on: 07 February 2013, 10:20 »
I had same problem I sent car off for thermostat to find out it was just the temp sensor which is the easiest job in the world and I paid about £5 for at gsf
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Offline itavaltalainen

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Re: Thermostat or temperature sensor?
« Reply #2 on: 07 February 2013, 12:37 »
with those symptoms it is almost certainly thermostat mate....

15£ for thermostat, 10 for coolant and about 2hours if you've never changed one on a mk3 before.

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Offline WeekendMechanic

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Re: Thermostat or temperature sensor?
« Reply #3 on: 07 February 2013, 14:48 »
It quite a big job that`s why I want to be certain
So your saying that the thermostat is opening beforehand and it should not open before 90 degrees and that its a dodge thermostat?
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Offline itavaltalainen

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Re: Thermostat or temperature sensor?
« Reply #4 on: 07 February 2013, 19:22 »
yes, your thermostat is opening too early, or more likely just not fully closing anymore.

don't know what you mean with big job, just a bit messy due to coolant coming out....
change itself is fairly simple and can be managed easily with basic tools.

if you tell me which engine you got i can give your instructions...
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Offline dixie180

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Re: Thermostat or temperature sensor?
« Reply #5 on: 07 February 2013, 20:09 »
Sorry to hijack this thread but gonna change my thermostat this weekend.Have an 8v Mk3 ADY and Haynes manual so i guess i'm halfway there.Is there anything else i might need ie,new gasket,grease etc.
Cheers
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Offline mrsaunders

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Re: Thermostat or temperature sensor?
« Reply #6 on: 07 February 2013, 20:15 »
Quote from: dixie180 on 07 February 2013, 20:09
Sorry to hijack this thread but gonna change my thermostat this weekend.Have an 8v Mk3 ADY and Haynes manual so i guess i'm halfway there.Is there anything else i might need ie,new gasket,grease etc.
Cheers
I remember changing my water pump/ thermostat on my old ady, pretty straight forward really, just need the new thermostat and the Oring that comes with it
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Offline dixie180

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Re: Thermostat or temperature sensor?
« Reply #7 on: 07 February 2013, 20:19 »
Cheers,yeah got both so gonna give it a go. :wink:


Rob
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Offline itavaltalainen

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Re: Thermostat or temperature sensor?
« Reply #8 on: 07 February 2013, 20:20 »
if you get stuck give me a shout, not far from worcester :)
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Offline dixie180

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Re: Thermostat or temperature sensor?
« Reply #9 on: 07 February 2013, 20:32 »
Hey might take you up on that  :laugh:.Cheers
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