0 members (),
302
guests, and
38
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums34
Topics48,345
Posts813,037
Members9,208
|
Most Online1,046 Aug 24th, 2023
|
|
|
Joined: Sep 2016
Posts: 228
L - Learner Plates On
|
OP
L - Learner Plates On
Joined: Sep 2016
Posts: 228 |
I've noticed the coolant gauge on my 2011 2.0 Durate car has started to sit at around 80*. I've only had the.car a few weeks but I'm sure it previously sat at the the "normal" 100*Ish.
This remained the case after a spirited 30 mile drive last weekend but it's only just struck me as a possible sticking thermostat. Any thoughts?
Andy
2011, 4/4, 2.0, 75th Anniversary 2016, VW Polo GTI 2012, BMW 520d Touring
|
|
|
|
Joined: Dec 2008
Posts: 21,868 Likes: 167
Roadster Guru Member of the Inner Circle
|
Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,868 Likes: 167 |
I doubt it Andy. It's more likely to be the colder weather. Just keep an eye on it.
DaveW '05 Red Roadster S1 '16 Yellow (Not the only) Narrow AR GDI Plus 4
|
|
|
|
Joined: May 2014
Posts: 2,774
Talk Morgan Expert
|
Talk Morgan Expert
Joined: May 2014
Posts: 2,774 |
I doubt it Andy. It's more likely to be the colder weather. Just keep an eye on it. Agree, mine used to do the same once the chilly weather arrived. If the stat was stuck open it would still eventually arrive at the normal temp.
Steve
|
|
|
|
Joined: May 2012
Posts: 1,639 Likes: 20
Talk Morgan Enthusiast
|
Talk Morgan Enthusiast
Joined: May 2012
Posts: 1,639 Likes: 20 |
If the 80 degs reading was obtained from the ECU diagnostics with an OBD tool rather than the ornament on the dashboard when the engine was up to temp I would say that it was too low. The Duratec is designed to run hot at around 100 and even above. A genuine 80 deg water temp at the head sensor might imply that the stat was stuck open. I wouldn’t take the gauge too seriously but check the ECU live data if you want to be sure.
Roger 2011 Plus 4
|
|
|
|
Joined: Jan 2011
Posts: 5,366 Likes: 15
Charter Member
|
Charter Member
Joined: Jan 2011
Posts: 5,366 Likes: 15 |
Andy, As Dave & Steve have said, around 80degs in the cooler weather is quite normal. I thought my fan wasn't working during the summer when the temp went past 100 but I now know that it doesn't come on until at least 105 so don't worry, all is well.
Here for a good time not a long time!! Reg
|
|
|
|
Joined: Apr 2011
Posts: 8,014
Posting Desperado Talk Morgan Guru
|
Posting Desperado Talk Morgan Guru
Joined: Apr 2011
Posts: 8,014 |
Reg, Ben Duncan swapped the censor in my 4/4 cvh for a Fiat Punto one and it comes on at before 90 goes off around 120 . Still got the box if anyone wants the number ( if I can find the box in the garage ) .
|
|
|
|
Joined: May 2015
Posts: 327
Learner Plates Off!
|
Learner Plates Off!
Joined: May 2015
Posts: 327 |
If it's the smiths sensor supplied by CAI 80C is approx 103 ohms sender resistance.You can measure the sender resistance to earth and check (disconnect cable first of course). You can then cycle the indicator using a 10Kohm pot' just one wire of the pot to engine block (earth) and the other connected to the signal wire from the sender to the gauge, ignition on and check the reading. These things are'nt manufactured to Natonal Physics Lab standards so the accuracy is not fabulous by any stretch. You may have the ford sensor though, which I think is a different set up.
|
|
|
|
Joined: Sep 2011
Posts: 14,723 Likes: 149
Member of the Inner Circle
|
Member of the Inner Circle
Joined: Sep 2011
Posts: 14,723 Likes: 149 |
My general observation is that the "normal" temperature is about 90°C. The high speed fan switches on at about 92°C and on hot days the temperature hovers around 100°C. It actually drops a bit when the aircon is on because the aircon radiator is pre-cooling part of the air before it hits the engine radiator.
I would think 80°C quite low but I would not be overly concerned if the ambient temperature is under 10° and the load is light.
The Omex ECU is set to recognise anything below 70°C as cold running.
Peter
|
|
|
|
Joined: Jun 2015
Posts: 431
Learner Plates Off!
|
Learner Plates Off!
Joined: Jun 2015
Posts: 431 |
I guess using the heater would cool it as well?
|
|
|
|
Joined: Dec 2008
Posts: 21,868 Likes: 167
Roadster Guru Member of the Inner Circle
|
Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,868 Likes: 167 |
Yes indeed. An old trick to control hot running.
DaveW '05 Red Roadster S1 '16 Yellow (Not the only) Narrow AR GDI Plus 4
|
|
|
|
|