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Aug 24th, 2023
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Joined: Feb 2023
Posts: 54
Just Getting Started
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Just Getting Started
Joined: Feb 2023
Posts: 54 |
Are both radiator cooling fans coming on?
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Joined: Feb 2016
Posts: 775 Likes: 33
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2016
Posts: 775 Likes: 33 |
That’s good, but what about the flow of the coolant through the engine?
2015 M3W, Morgan Aero Racing Stage 1, Garage 56 Stage 2, sport black, saddle tan, jeweled SS dash.
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Joined: Sep 2016
Posts: 997 Likes: 23
Talk Morgan Regular
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Talk Morgan Regular
Joined: Sep 2016
Posts: 997 Likes: 23 |
The fan should cut in before the warning light comes on, not after.
The fan thermostat needs adjusting or replacing in the first instance.
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1 member likes this:
PaulV |
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Joined: Nov 2023
Posts: 19
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Nov 2023
Posts: 19 |
Well I think I solved it.... (fingers crossed).
Yesterday while driving the errors popped back up - sometimes they would clear on their own (weird), then I got a NEW error about the battery (really weird), the idle has been erratic as has starting it...
This morning I checked all the wiring harness and terminal connections and found the negative was a little loose. About 2.5 turns of a screwdriver loose. Certainly not falling off - but I think tightening this has worked!
2023 S3
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Joined: Nov 2015
Posts: 7,895 Likes: 241
Just barreling along Talk Morgan Guru
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Just barreling along Talk Morgan Guru
Joined: Nov 2015
Posts: 7,895 Likes: 241 |
^ Nice easy cure, hopefully sorted now 
Jon M
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Joined: Nov 2023
Posts: 19
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Nov 2023
Posts: 19 |
Are there two radiator fans?
Well im sad to report, the loose ground fixed the start up issue, and the motor is running strong - but sadly - still getting the temp warning.
I hear the fan spool up so I know it works - so maybe cooling system issue or thermostat... would like to get to the bottom of it before hot Houston summer.
2023 S3
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Joined: Jul 2013
Posts: 3,660 Likes: 48
Talk Morgan Addict
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Talk Morgan Addict
Joined: Jul 2013
Posts: 3,660 Likes: 48 |
Have you asked your dealer for advice?
Red Leader 
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Joined: Nov 2023
Posts: 19
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Nov 2023
Posts: 19 |
Have you asked your dealer for advice? Yes, we have been working over email. Im going to try a call tomorrow. When I did the oil change, i was just a bit above the dipstick mark - drained out 200cc and its just below, so it wasnt massively overfilled. I can't imagine this would made a difference, but ... trying everything I can.
2023 S3
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Joined: Jul 2013
Posts: 3,660 Likes: 48
Talk Morgan Addict
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Talk Morgan Addict
Joined: Jul 2013
Posts: 3,660 Likes: 48 |
It not going to be the oil and sounds more like a thermostat or temperature sensor issue rather than overheating as if it was too hot it wouldn't clear as soon as the fan kicked in.
If you get hold of an infra red thermometer and leave the car idling you can check the temp of a convenient radiator or hose. if it's around 190 - 200F the cooling is OK.
Red Leader
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Joined: Nov 2023
Posts: 19
New to Talk Morgan
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OP
New to Talk Morgan
Joined: Nov 2023
Posts: 19 |
It not going to be the oil and sounds more like a thermostat or temperature sensor issue rather than overheating as if it was too hot it wouldn't clear as soon as the fan kicked in.
If you get hold of an infra red thermometer and leave the car idling you can check the temp of a convenient radiator or hose. if it's around 190 - 200F the cooling is OK. Great idea - thank you.
2023 S3
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