97 406 2.1 TD FAN COWLING AND TWO FAN COOLING MOTORS PLEASE

BLIECOWROCKS · Post by **BLIECOWROCKS** » Fri Mar 09, 2007 8:12 pm

Looking for the above. Can anybody help? Thanks. Existing motors are seized and somebodies bodged and cracked the cowling. Many thanks Julian

niz406 · Post by **niz406** » Fri Mar 09, 2007 11:16 pm

Hi Julian, is it single or twin fan ?

look here for the cowling and try here for your fans, this is where I brought mine from, very good units !

jameslxdt · Post by **jameslxdt** » Fri Mar 09, 2007 11:19 pm

all the diesel models and petrol models with a/c or a turbo had twin fans, only the petrol models without turbo and without a/c had a single cooling fan
so he wil have twin fans

niz406 · Post by **niz406** » Fri Mar 09, 2007 11:36 pm

I know that silly !

But do you know why, they had 2 fans ? and how they operate?

BLIECOWROCKS · Post by **BLIECOWROCKS** » Sat Mar 10, 2007 12:32 pm

I d like to know why they had two fans! I know obviously it would cool more.

jameslxdt · Post by **jameslxdt** » Sat Mar 10, 2007 3:34 pm

they fitted two fans coz the twats at peugeot knew one would fail so they gave you a spare just incase, actaully i have no idea why they put two fans, as diesel's run colder than a petrol engine, but overheat quicker so maybe they thought two fans running slower than one big one would be more efficient?
i have no idea, just another un-explainable pug thing

niz406 · Post by **niz406** » Sat Mar 10, 2007 8:50 pm

Its all about CFM.... well ok mostly

2 fans operating @ 6v flow more air than one @ 12 due to their surface coverage.. this isn't the only thing though... Peugeot actually included a second fan for the A/C, when the A/C is on during summer, both fans may switch up to full 12v and provide max CFM to both A/C and coolant, during colder climate both fans typically only run @ 6v.

In some instances only one fan will run and at 6v, the fan control system comprises of so many different aspects...

2 Fans

3 Relays - both +ives and the -tive are switched

Fan ECM

Bitron Temp sensor's, typically 2 - 3 of them

And they wonder why they have so many electrical gremlins !

jameslxdt · Post by **jameslxdt** » Sat Mar 10, 2007 10:47 pm

both fans will only run at full speed with the a/c on if the system pressure goes to high