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Author Topic: Engine temperature gauge fluctuating while driving  (Read 8006 times)

Offline Conor76

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Engine temperature gauge fluctuating while driving
« on: March 10, 2014, 08:48:02 PM »
Hi all

I drive a 07 Galaxy mk 3 1.8 diesel. Car seems to take a while for temperature gauge to start rising, it never seems to reach halfway. Seems to fluctuate between quarter way and nearly half way. Only rises to near halfway when accelerating up a hill etc. Mechanic said that he replaced thermostat, hasn't made any difference!

Many thanks

Offline benali

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Re: Engine temperature gauge fluctuating while driving
« Reply #1 on: March 11, 2014, 03:37:28 PM »
Check your coolant level. My gauge became dodgy when level dropped a bit.

Offline Conor76

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Re: Engine temperature gauge fluctuating while driving
« Reply #2 on: March 11, 2014, 04:25:17 PM »
Thanks for the reply, coolant level seems perfect!

Offline insanitybeard

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Re: Engine temperature gauge fluctuating while driving
« Reply #3 on: March 11, 2014, 04:47:01 PM »
Depending on the model, diesels do run cooler than petrol engines- has the temperature gauge always behaved like this or has it only started recently? My mark 2 1.9 TDI temperature gauge takes a while to lift from cold, and when it does it will only reach half way if being put under load- slow driving or coasting won't do it, especially if it's cool outside.
Always learning..... Often by mistakes!

Offline Conor76

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Re: Engine temperature gauge fluctuating while driving
« Reply #4 on: March 11, 2014, 05:12:30 PM »
I only have the car about 6 weeks. Bought it off a garage with a 3 month warranty, so they checked it out and changed the oil thermostat, but made no difference. Gauge keeps moving up and down. Also the car was very sluggish starting in the morning, so they have had the car nearly a week now. They changed glow plugs, fuel filters etc but no change. My wife went to pick it up today, and couldn't start it in the dealership! They started it, and tried it a few times, and seemed ok.

She drove 2 minutes down the road, she then noticed a bad rattling noise and the car then died.  The garage picked her up and gave her a replacement car and took it back. They are giving it to a Ford specialist to see what the problem is....

By the way, can't fault the garage, their after sales care has been excellent.....

Offline gregers

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Re: Engine temperature gauge fluctuating while driving
« Reply #5 on: March 11, 2014, 08:29:50 PM »
iirc under the sale of goods act you have 28 days to notify the dealer of any defects on the car,this does not even touch any warranty that has come with it.
they have to prove the fault wasnt there at time of sale,not you.
sounds like there a good bunch then,but please bear in mind.it might be beneficial to you to get them to extend the warranty as compensation for the upheaval you have had to endure  ;) ;) dont ask dont get.
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Offline Chrispb

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Re: Engine temperature gauge fluctuating while driving
« Reply #6 on: March 11, 2014, 09:42:13 PM »
Hi Conor 76  welcome5

Think you may have had a lucky escape here as that sounds now like cam belt failure
What mileage has the car done?
2016 Vauxhall Insignia Elite Nav in White 2.0CDTI Manual.
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspaecher booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
All for a pint of Strongbow.

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Offline Conor76

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Re: Engine temperature gauge fluctuating while driving
« Reply #7 on: March 12, 2014, 07:13:49 AM »
Thanks everyone for your replies and advice.

The car has done about 112,000 miles. Cam belt failure sounds serious! The garage has assured me that they will look after us... here's hoping!

Car has gone to Ford specialist, I'll report back as to what his findings are.....

If he says he can't find anything wrong, then I'll start to worry!

Offline Chrispb

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Re: Engine temperature gauge fluctuating while driving
« Reply #8 on: March 12, 2014, 10:37:03 AM »
Cambelt failure is serious on nearly all engines as it causes the valves to clash with the pistons, have been in conversation with a chap on another forum, his has failed at 100.000 miles.
The Lynx 1.8 engine has normal  belt and a chain in oil, or the normal belt and a belt in oil.
The belt in oil was the one that failed in his case.

If it turns out to be something different I would still pressure them to changing the belts just for piece of mind as a breakage will cause extensive damage.
2016 Vauxhall Insignia Elite Nav in White 2.0CDTI Manual.
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspaecher booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
All for a pint of Strongbow.

The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

 

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