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CITROEN C4 ENGINE FAN PROBLEM
10-09-2015, 10:09 AM,
Post: #1
PCitroen  CITROEN C4 ENGINE FAN PROBLEM
Hello I have a problem with an citroen c4 1.6hdi 2005 year without dpf
the engine fan starts with the cold engine and when the engine is off it starts without any command since the batery goes flat
Please any idea
Sorry my bad English
Best Regards
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10-09-2015, 10:44 AM,
Post: #2
RE: CITROEN C4 ENGINE FAN PROBLEM
Check engine temperature sensor, disconect him end fan will starts, clean the contacts on him end check resistans with multimeter
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10-09-2015, 10:48 AM,
Post: #3
RE: CITROEN C4 ENGINE FAN PROBLEM
Is all ok I checked the temp sensor
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10-09-2015, 12:20 PM,
Post: #4
RE: CITROEN C4 ENGINE FAN PROBLEM
Then check fan relays
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10-09-2015, 13:46 PM,
Post: #5
RE: CITROEN C4 ENGINE FAN PROBLEM
Fan start with first speed or second any way your problm is in (bsm) i see this problem
fan resistance make problem also but when the engine is on
good luck bro
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10-09-2015, 15:51 PM,
Post: #6
RE: CITROEN C4 ENGINE FAN PROBLEM
Disconect the a/c pressure sensor
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10-09-2015, 21:29 PM,
Post: #7
RE: CITROEN C4 ENGINE FAN PROBLEM
Has the car got a DPF Filter? Fans will run if trying to do a regeneration of the DPF filter. There was a download from Peugeot for this era Peugeot 307 to stop the fans coming on as often.

handshake Please and Thanks goes a long way! biker
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10-09-2015, 21:57 PM,
Post: #8
RE: CITROEN C4 ENGINE FAN PROBLEM
I had similar problem, car had dpf before and it was disabled. And all problem started without any related problem before. I figure out that problem was with coolant pressure sensor. Few days later fan started again. After few days of searching i figure out that dps temperature sensor is problem. Exhaust temperature sensor resistance changed and constantly showing 900 C in exhaust pipe, and ecu is trying to cool down engine. I had to disconnect it only, because DPF was disabled.
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11-09-2015, 11:26 AM,
Post: #9
RE: CITROEN C4 ENGINE FAN PROBLEM
(10-09-2015, 10:09 AM)lirinikut Wrote:  Hello I have a problem with an citroen c4 1.6hdi 2005 year without dpf
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