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Aug 24th, 2023
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Joined: Oct 2012
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L - Learner Plates On
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OP
L - Learner Plates On
Joined: Oct 2012
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Have just got my car back from the local garage (not a Morgan workshop) who have fitted a sports exhaust for me. When I picked the car up this afternoon the fan was running but the mechanic had been running the engine to check for exhaust leaks etc. however on arriving home, just a short trip the fan continued running. I have removed the fuse. Any ideas?
David
2001 4/4 Zetec silvertop.
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Joined: Aug 2013
Posts: 67
Just Getting Started
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Just Getting Started
Joined: Aug 2013
Posts: 67 |
David
The fan will continue to run until engine temperature has dropped and is perfectly normal, it's controlled by the ECU.
Mark Evans
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Joined: Apr 2014
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Talk Morgan Sage
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Talk Morgan Sage
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Best Regards
Lang may yer lum reek
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Joined: Oct 2012
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L - Learner Plates On
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Joined: Oct 2012
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David
The fan will continue to run until engine temperature has dropped and is perfectly normal, it's controlled by the ECU.
Mark Evans Thank Mark, the engine was cool to the touch, I am thinking it may be the Otter Switch or a short?
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Joined: Aug 2013
Posts: 67
Just Getting Started
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Just Getting Started
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No not a car is born I'm much more infamous than that (LOL)  . Mark Evans Aero Racing Manager Morgan Motor Company
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Talk Morgan Addict
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Talk Morgan Addict
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Mark knows his stuff but as the block is cool to touch and the fan is still running could I suggest you have a look at the fan control relay. Not common but not unknown for a relay to have its contacts welded shut. If your car has a fan switch in the radiator might be worth pulling the wires off and if you have an Ohm meter checking to see if it's closed circuit, it should be open circuit when cold/cool.
BR
Colin
BR Colin
Who used to be a Spanner Juggler
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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On a 2005 Roadster, the fan quit. I could not figure out what the problem was. So I installed a Flexolite Temp. Switch. I put the probe into the upper (probably should have been lower) hose and connected Wires. It is hard wired (no switch). Seems to work OK. Temp is adjustable. Just by-passed the existing wiring plugs etc.
Button
Seattle
Button
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Joined: Feb 2010
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Has a lot to Say!
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Has a lot to Say!
Joined: Feb 2010
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Whilst I hate to tell the factory they're wrong about something...
The ECU didn't control the fan until the "Black Top" Zetec or Focus engine was fitted in late 2001/early 2002
Chances are it's the otter switch (bottom right of the radiator) throwing a wobbler or as Colin pointed out, the relay may have fused in in its "on" position
Simon @ SiFab.co.uk
Simon @ Sifab.co.uk
Sifabtemporary@gmail.com
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Joined: Jul 2007
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Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
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I've had a Kenlowe (yes, aftermarket but the principle is similar) "relay" stick in the on position...
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'09 Gen2 MINI Cooper ragtop
'90 LR 90 SW
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L - Learner Plates On
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Thanks Guys, I have a Escort 1997 silvertop (I found this out by the number on the timing belt) will check the relay if I knew where it's located? I will also check the otter switch circuit for open.
David
Last edited by Georgie; 04/07/16 08:31 PM.
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