Peugeot 308 radiator fan running non-stop

2008 Peugeot 308 Problem

Ref#20641
CarPeugeot 308 manual
Year2008
Ownerjuju4link@gmail.com
Posted10/10/2017
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What i have tried:unplugged the coolant sensor supply plug,fan still running
:Cleaned the expansion tank level sensor but error persists for water level too low
:Checked radiator relay,seems to check out no carbon or stuck contacts it is still new.
:Depollution error msg still showing.
Please help
Problem Category
Engine, Cooling System & Drivetrain

Running Rough, Starting & Power Loss


Solution 1
whittingehame | Legend | Since: Oct 2009 | Posts: 444 | Fixes: 11466 | View Garage
Suggested Solution

Scan it .


Posted on Tuesday 10th of October 2017
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Solution 2
1/4drive | Auto Insider | Since: Jun 2011 | Posts: 25 | Fixes: 1539 | View Garage
Suggested Solution

Having a quick look at the wiring diagram leads me to suspect the two speed fan electrical control unit or wiring on same.


Posted on Tuesday 10th of October 2017
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Solution 3
whittingehame | Legend | Since: Oct 2009 | Posts: 444 | Fixes: 11466 | View Garage
Suggested Solution

Water level sensor faulty ? If it's a diesel the fans will keep running when it's regenerating .


Posted on Tuesday 10th of October 2017
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From Original Poster
juju4link@gmail.com | Driver | Since: Oct 2017 | Posts: 0 | Fixes: 0 | View Garage
Suggested Solution

Its a petrol vehicle


Posted on Tuesday 10th of October 2017
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From Original Poster
juju4link@gmail.com | Driver | Since: Oct 2017 | Posts: 0 | Fixes: 0 | View Garage
Suggested Solution

Theres two sensors:one on expansion tank(white plastic tank where water is poured for cooling system by radiator),the other sensor is the thermistor between car battery and engine which tells us abt temperature of water on engine...
-The expansion tank sensor shows water level problem of which water is full
-the thermistor shows water temp ok on car display on dashboard but error on scan says its faulty,that where my problem is.


Posted on Tuesday 10th of October 2017
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Solution 4
1/4drive | Auto Insider | Since: Jun 2011 | Posts: 25 | Fixes: 1539 | View Garage
Suggested Solution

Post the RPO number of the white sticker,


Posted on Tuesday 10th of October 2017
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Solution 5
paulieone | Driver | Since: Aug 2009 | Posts: 4 | Fixes: 1519 | View Garage
Suggested Solution

remove the connector to the thermistor and check to see if it is wet..if it is chances are you will have coolant at the engine management ECU


Posted on Saturday 14th of October 2017
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Solution 6
theboys-21 | Driver | Since: Oct 2017 | Posts: 0 | Fixes: 5 | View Garage
Suggested Solution

the fans will come on on peugeot cars when there is any fault recorded in the pcm its a safety thing .have the car pluged in to a diagnostic tool.


Posted on Thursday 26th of October 2017
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