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Model specific boards => Golf mk4 => Topic started by: Mr_Orange on 26 August 2009, 19:52

Title: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 26 August 2009, 19:52: Might just be me, but the engine temp gauge seems to take ages lately to get up to 90Â°. Like 10 miles of motorway driving?! Though once its there it sits at that level and don't move.

Perhaps just a coincidence.... but its since I had my oil & filter changed?

Any ideas? Have I got a potential problem on the horizon?
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: jonnyturbo on 26 August 2009, 20:16: temp sender might be on way out tbh
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 26 August 2009, 20:18: That's my first thought, they only about £20 from VW yeh? Seems easy enough to fit too.

Just praying it aint thermostat valve or something else..... :sick:
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: jonnyturbo on 26 August 2009, 20:20: think i paided around the £23 mark for mine
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: jonnyturbo on 26 August 2009, 20:20: edit paid*
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 26 August 2009, 20:23: Quote from: jonnyturbo on 26 August 2009, 20:20
think i paided around the £23 mark for mine

That's a little job for me at the weekend then! :grin:
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: gtigolfthree on 26 August 2009, 20:26: Could be the thermostats opening too soon.
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 26 August 2009, 20:27: Quote from: gtigolfthree on 26 August 2009, 20:26
Could be the thermostats opening too soon.

Is that gunna result in anything horrible until I try a new sensor?
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 26 August 2009, 20:35: If there is a fault here would this be concidered "overcooling"?

Would it coincide with me noticing a slight dip in mpg this week?
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: AudiA8Quattro on 26 August 2009, 21:55: Thermostat stuck open.
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: northeast_gti-t on 26 August 2009, 22:15: Quote from: Mr_Orange on 26 August 2009, 20:35
If there is a fault here would this be concidered "overcooling"?

Would it coincide with me noticing a slight dip in mpg this week?
more than likely it would :wink: if its taking about 10 miles to get to 90 i would say that its your thermostat
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: gtigolfthree on 26 August 2009, 22:29: Yes all the themostat does is stop the water getting to the radiator until it reaches a certain temperature if it opens too soon or indeed if its open all the time then the warm water will get cooled in the radiator and take for ever to heat up. You will use more fuel while the engine stays cold like being on choke but should be ok once hot.
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: richw911 on 26 August 2009, 23:32: http://www.golfgtiforum.co.uk/index.php?topic=101783.0

http://www.golfgtiforum.co.uk/index.php?topic=88088.0 :wink:
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 27 August 2009, 16:36: Journey to work it took 10 mins to warm up, journey home it was fine again! :angry:

I've ordered the thermostat, o-ring and will get fresh coolant. I was at a loose end this weekend anyways!

Cracks knuckles.....
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: T_J_G on 27 August 2009, 17:50: Did you get a new sensor? If the prob persists you cam try
my sensor :)
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 29 August 2009, 17:07: Thermostat done today with big help from TJG!

Seems fine now, will have to keep an eye on coolant level for next little while is all.

Went out this morning before fitting it and still took ages. New thermostat and replaced coolant and 90Â° reached in proper time again.

Easy enough, just a bit fiddly.

Great!
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: T_J_G on 29 August 2009, 17:19: All I did was point to stuff :wink:
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: Mr_Orange on 29 August 2009, 17:48: Quote from: T_J_G on 29 August 2009, 17:19
All I did was point to stuff :wink:

Highlights being some tw@ almost driving over me, or losing that bolt in the deep dark recesses of the engine bay? :grin:
Title: Re: Temp taking a long time to rise to 90Â° ?
Post by: T_J_G on 29 August 2009, 17:52: Quote from: Mr_Orange on 29 August 2009, 17:48
Quote from: T_J_G on 29 August 2009, 17:19
All I did was point to stuff :wink:

Highlights being some tw@ almost driving over me, or losing that bolt in the deep dark recesses of the engine bay? :grin:

silly Pug driver! your door seemed ok though! I didn't lose it, I misplaced it for a short while.