S16 Temperature Headache!!!! - Engines Forum - Peugeot 306 GTi-6 & Rallye Owners Club

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Subject: S16 Temperature Headache!!!!

marcello

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Location: Sydney

Registered: 23 Jun 2011

Posts: 61

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Post #1

This pug has taken my wallet right out of my pocket and swallowed it

The car has been overheating towards the 110 degrees and never used to do this

So i took the thermostat out, put in a boiling hot water , and it opened up. So that wasn�t the problem ?

Bottom of the radiator was leaking we found so i replaced it with a brand new one
Now the car still overheats
There are no leaks what so ever
I don�t have to ever top up the radiator with coolant as it stays its level very nicely
i have bleed the system numerous of times and still no result
I have no idea what is going on

Here is a video of what is happening to me on idle - http://www.youtube.com/watch?v=98wXuEPyxXY

Any ideas people?
thanks

Posted 1st Aug 2011 at 07:39

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kiwibrick

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Location: Auckland New Zealand

Registered: 10 Jul 2009

Posts: 27

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Post #2

One of your cooling fans has stopped working for some reason, so you have no low speed fans and only one fan when the high speed kicks in (normally at 107deg) I would guess.

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Posted 1st Aug 2011 at 13:20

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marcello

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Location: Sydney

Registered: 23 Jun 2011

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Post #3

thanks for the reply

are these low speed fans the thermo fans?

because the thermo fans havnt been kicking in at the normal temp? they tend to come on at 110 degress but the car doesnt get cooler it just stays on 110 Sad

Posted 1st Aug 2011 at 14:16

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ballys16

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Post #4

marcello wrote:

If you have an AC then you have a brown sensor.
When ignition is off, unplug it and put ignition back.
What should happen is that the low speed fans come on (both) for ~2 secs and then both should turn to full speed and stay on. Any other type of operation points to a fault. Again, if you have an AC.
My car (P1 S16) had the same symptoms when the right fan was knackered - fan motor was replaced.

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XSi 8V -> S16

Posted 1st Aug 2011 at 14:17

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ballys16

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Location: Godollo

Registered: 05 Mar 2009

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Post #5

ballys16 wrote:

Looking at your vid it does seems odd that when the high speed fans should kick in they don't seem to but what does cools the engine only a bit.
You sure bleeding was done well? Also, do you know for sure that the water pump is OK? Rad cap?

________________________________________

XSi 8V -> S16

Posted 1st Aug 2011 at 14:23

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405gti6

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Location: Norway

Registered: 05 Jan 2011

Posts: 70

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Post #6

Same problem when car is moving?

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Posted 1st Aug 2011 at 14:47

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marcello

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Location: Sydney

Registered: 23 Jun 2011

Posts: 61

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Post #7

ballys16 wrote:

marcello wrote:

hi mate thanks for the reply

when u say AC u mean air con?
also where is this brown sensor located so i can test . thanks

see i dont know if my fans are knacked because when at 110 they both come on

Posted 1st Aug 2011 at 14:55

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will130787

Seasoned Pro

Location: Reading

Registered: 24 Sep 2009

Posts: 3,933

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Post #8

Low speed fan not kicking in, new fan unit in my book Smile

________________________________________

Ex Astor 6 owner Sad

Also an Ex owner of a Bianca 6 Sad

Now an ex owner of a 2005 9-3 2.0T 210bhp Aero Swedish Saloon thing!! Soon to be 250bhp.... Superman

Now driving Mk5 Golf GTTdi, mile muncher

But still live for the 306 Ninja

Posted 1st Aug 2011 at 14:55

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marcello

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Location: Sydney

Registered: 23 Jun 2011

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Post #9

ballys16 wrote:

Well i tried my best with the bleeding , there is definetly no air.
also how can i test the water pump to be sure?
and the radiator cap also changed recently to a new one

thanks for your help

Posted 1st Aug 2011 at 14:57

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marcello

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Location: Sydney

Registered: 23 Jun 2011

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Post #10

405gti6 wrote:

Same problem when car is moving?

Hi mate

when the car moves the temputure goes down, but very slowly

normally the my s16 use to sit around 90-95 on idle

Posted 1st Aug 2011 at 14:58

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ballys16

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Post #11

marcello wrote:

Yes, by AC I mean aircon.
The brown plug is near the thermostat housing only at the back of the engine, in line with the blue CTS. Can be just accessed.
BTW, if you turn on the AC, do any of your fans come on?
Water pump: are all water hoses ~ the same temp (feeling)
Oh, and by the way, if unplugging the brown sensor changes the way fans work then the sensor itself is at fault ~30 pounds and a spanner Smile

________________________________________

XSi 8V -> S16

Posted 1st Aug 2011 at 15:25

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marcello

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Location: Sydney

Registered: 23 Jun 2011

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Post #12

is this the brown sensor your talking about?

because if it is , i took it out and turned igintion on and nothing happend
..

also when i turn aircon on both fans start

Posted 1st Aug 2011 at 15:44

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ballys16

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Post #13

marcello wrote:

is this the brown sensor your talking about?

because if it is , i took it out and turned igintion on and nothing happend
..

also when i turn aircon on both fans start

Sorry, cant make out what I see.
Let me take a few pics of mine.

________________________________________

XSi 8V -> S16

Posted 1st Aug 2011 at 15:55

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ballys16

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Post #14

ballys16 wrote:

Sorry, cant make out what I see.
Let me take a few pics of mine.

Small, sorry, but here you are:

________________________________________

XSi 8V -> S16

Posted 1st Aug 2011 at 16:04

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marcello

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Location: Sydney

Registered: 23 Jun 2011

Posts: 61

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Post #15

im so stupid i cant find it,

can u tell me what section it is? on this pic

[URL=http://imageshack.us/photo/my-images/35/photo0440p.jpg/

Posted 1st Aug 2011 at 16:20

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ballys16

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Post #16

marcello wrote:

im so stupid i cant find it,

can u tell me what section it is? on this pic

What you see (blue plug) is the thermostat housing.
That is on the left side of the car (left meaning if you sit behind the steering wheel), accesible from the battery side. It is ~ in the midle of the cylinder head, below the vacuum pump. The blue CTS is visible in both pics for reference.
Can you repost the pic? Dont see it.

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XSi 8V -> S16

Posted 1st Aug 2011 at 16:44

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ballys16

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Post #17

ballys16 wrote:

marcello wrote:

im so stupid i cant find it,

can u tell me what section it is? on this pic

Got the pic finally.
So.
It is in the green section, accessible from the blue section.
Mind you, it is way below what your photo shows, taken from above.
That big alloy thing in the middle of your pic (on the border of blue/green) is the vacuum pump, visible in my pic. Below that really.

________________________________________

XSi 8V -> S16

Posted 1st Aug 2011 at 16:57

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marcello

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Location: Sydney

Registered: 23 Jun 2011

Posts: 61

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Post #18

thanks for your help , but i have looked top to bottom of my car and lol i cant see it anywear

i can only find a green CTS on the side of the thermostat housing Sad

Posted 1st Aug 2011 at 16:51

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ballys16

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Post #19

ballys16 wrote:

Got the pic finally.
So.
It is in the green section, accessible from the blue section.
Mind you, it is way below what your photo shows, taken from above.
That big allow thing in the middle of your pic (on the border of blue/green) is the vacuum pump, visible in my pic. Below that really.

________________________________________

XSi 8V -> S16

Posted 1st Aug 2011 at 16:53

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ballys16

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Post #20

marcello wrote:

thanks for your help , but i have looked top to bottom of my car and lol i cant see it anywear

i can only find a green CTS on the side of the thermostat housing Sad

Do you have air conditioning? Because the brown sensor is available in the AC version only. Although you say you have a double fan setup (usually meaning an AC is there) it could be a "custom" feature.

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XSi 8V -> S16

Posted 1st Aug 2011 at 16:57

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ballys16

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Location: Godollo

Registered: 05 Mar 2009

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Post #21

ballys16 wrote:

marcello wrote:

thanks for your help , but i have looked top to bottom of my car and lol i cant see it anywear

i can only find a green CTS on the side of the thermostat housing Sad

Two guys down under:

> Him <
> and him also <

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XSi 8V -> S16

Posted 1st Aug 2011 at 17:06

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marcello

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Location: Sydney

Registered: 23 Jun 2011

Posts: 61

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Post #22

ballys16 your a champion i finally found it ,
i did what you said and this is what happend

Turned ignition on
Only left hand thermo fan operates at full speed

What should i do ?

thankyou mate sorry it took so long Smile

Posted 9th Aug 2011 at 08:34

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marcello

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Location: Sydney

Registered: 23 Jun 2011

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Post #23

Please watch this to see what happens to me Smile

http://www.youtube.com/watch?v=baAiYHmu2d4

Posted 9th Aug 2011 at 13:46

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ballys16

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Location: Godollo

Registered: 05 Mar 2009

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Post #24

marcello wrote:

Please watch this to see what happens to me Smile

http://www.youtube.com/watch?v=baAiYHmu2d4

Looks a bit odd, things going haywire... Smile

Relays OK? The 3 you see between the fans.
Next I would check the "bitron" unit under the left wing, right about where the horn is, brown box, about the size of maybe two cigarette packs (I mean replace it with one that is defo good) - this is the easier job.
And apart from the wiring all thats left is the fan motor itself - mine was replaced because the original sometimes came on and then sometimes didn't.
Also, if the fuse was to be blown the fans would remain on for a couple of minutes after shutting the car off - but might be worth a check.

________________________________________

XSi 8V -> S16

Posted 10th Aug 2011 at 01:50

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marcello

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Location: Sydney

Registered: 23 Jun 2011

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Post #25

ok so i changed all the fuses and relays

i checks the biton unit, that was perfectly intact and all pins where beauitful

when i turn ac on both fans come on

when car reaches 110 degress both fans come on

this is doing my head in lol

Posted 10th Aug 2011 at 18:47

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