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bad cold start, cooling fan wont turn off
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Old 23 Jan 2006, 09:43 PM   #1 (permalink)
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bad cold start, cooling fan wont turn off

hi guys, im new to this forum, but i have a serious problem with my subaru WRX import from japan, it is 1992.

the first the cooling fans will not turn off as soon as i turn on the ignition, and also at the same time it will not start from cold and will not rev up at all. is the cooling fan sensor and cold start sensor all connected to one?

any chance of some feedback?
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Old 23 Jan 2006, 09:50 PM   #2 (permalink)
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Hiya Geoff, welcome to the .org....

Sorry I cant help you with this one, but I'm sure some one will be able to....

Enjoy your visits here...
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Old 24 Jan 2006, 09:34 AM   #3 (permalink)
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Welcome mate - sorry about your problem - you need someone technical here Bob or Pete perhaps - or maybe you need a bit of a help from a specialist - where do you live??
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Old 24 Jan 2006, 12:40 PM   #4 (permalink)
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i live in north devon, dont think theres any specialists around here
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Old 24 Jan 2006, 03:29 PM   #5 (permalink)
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Hi & Welcome Geoff

Found this info on cold start.

It could be the coolant temperature sensor. If it's reading a false temperature, it will miss-adjust your fuel and ignition timings causing your car to run rough or even stall. Sometimes that sensor will also make your fans kick on and off while the car is cold.

? with the location of the sensor.
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Last edited by 2002pete; 24 Jan 2006 at 06:28 PM.
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Old 24 Jan 2006, 06:39 PM   #6 (permalink)
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this thread could help ? 6th reply down, (Fixed the problem!)

http://www.subaru-impreza.org/bbs/showthread.php?t=6106
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Old 24 Jan 2006, 07:30 PM   #7 (permalink)
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I would put money on it being the coolant sensor on the drivers side of the engine just under the inlet manifold.
If you do a code read it should bring up the code for the coolant sensor but i can't remember the code I'm afraid.
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Old 24 Jan 2006, 10:41 PM   #8 (permalink)
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if the fans are running all the time either the car is in "diagnostic" mode or it has gone into 'limp' because of a suspected fault........................

look under the dash in the drivers footwell and in the area around the column you should see 2x green plugs (twin wires in each) and 2 black plugs (single wires)...............they should be disconnected in normal use

does your CEL light flash or stay on on the dash??
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Old 25 Jan 2006, 05:34 PM   #9 (permalink)
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i have just replaced the coolant temp sensor with no luck, its still the same fault. the engine CEL light is allways on permently.
thank you for the help so far.
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Old 25 Jan 2006, 06:57 PM   #10 (permalink)
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Question

Quote:
Originally Posted by Geoff_uk
i live in north devon, dont think theres any specialists around here
Hi Geoff Where abouts in North Devon mate? I'm in Bideford

Oh, there is a South West Scooby site you might like to join as well, have meets and so on.. Good bunch on there too

Will PM you the details if you like?
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Old 25 Jan 2006, 11:15 PM   #11 (permalink)
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have you actually done a 'diagnostic' or just replacved the sensor??
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Old 29 Jan 2006, 01:21 PM   #12 (permalink)
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I had same problem

Quote:
Originally Posted by Geoff_uk
hi guys, im new to this forum, but i have a serious problem with my subaru WRX import from japan, it is 1992.

the first the cooling fans will not turn off as soon as i turn on the ignition, and also at the same time it will not start from cold and will not rev up at all. is the cooling fan sensor and cold start sensor all connected to one?

any chance of some feedback?
Hi i had the same problem so I know what you mean.The reason your scoob is misbehaving is because the sender is playing up,sadly your sender is at the back of the front block it looks identical to the temp sender but it is a pig to get at and you need 3 very small hands.I took mine to Ivan at Forresters [midlands] and he fixed it no problem.If you look under the steering column you will find 2 green wires put them together and the warning light will flash a certain no. of times which if you contact a scoob garage they will confirm your problem.Sad news is that after the 95 models they put this sensor at the front of the engine.Design fault or what??? If i remember rightly I think the light flashes 3 x long & 4 x short hope this helps Crossjoint
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Old 29 Jan 2006, 02:16 PM   #13 (permalink)
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starting prob

hi again geoff just been up to where my scoobs parked to give a bit more info[i took it off the road for winter]looking from front where the inlet manifold drops down on the left hand side is where the sender unit is.as i remember the intercooler & pipes etc in this area had to be removed when you remove the switch you will lose coolant so you will need to top up.If you get a torch and look down where i have tried to explain it is you will see it as stated it looks identical to the temp sender switch sorry if this all sounds vague but I am no mechanic but trust me and your scoob will soon be well again.
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Old 31 Jan 2006, 06:06 PM   #14 (permalink)
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FIXED PROBLEM!!!

it was the sensor, but the fault code and faults still stayed in the ECU, i disconnected the battery over night and then connected it up in the morning
there was no fault codes at all and all is fine.

yes phill, if u contact me with them detials i will be interested. as i live in bideford too.
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Old 31 Jan 2006, 06:23 PM   #15 (permalink)
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I'll pm you the details mate

Glad you fixed the problem as well
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