Winding down 406!

This is the Forum for all your Peugeot Technical Questions, Problems or Advice.

Moderator: RichardW

Post Reply
Gotta New Pug
Posts: 43
Joined: 11 Jan 2005, 08:13
Location:
My Cars:

Winding down 406!

Post by Gotta New Pug »

Just a quicky, when i've been out in my 406 glx 2.0 petrol, and turn off engine, I can hear quite a loud 'winding down' sound, similar to a jet engine, is this normal and what is it?
User avatar
np
Posts: 1297
Joined: 13 May 2004, 03:13
Location: Bristol,UK
My Cars:
Contact:

Post by np »

Do you have air con?(i presume so being a GLX)If so,is it on when you hear the noise?If so,sounds like the cooling fans.You should hear my Xantia!!
If not,the fans might be on all the time for engine cooling.Possible fault?
Try the a/c route first.
PowerLee
Posts: 1260
Joined: 01 May 2004, 19:49
Location: United Kingdom
My Cars: Current - Slightly modified 2016 Pug 308 Puretech 130 Allure
Past:
2003 - 206 GLX TU3JP & 206 SE ET3JP4
1995 - 405 Executive XU10J2
1996 - 406 GLX XU10J4R
1994 - 405 GTX XU10J2
x 1

Post by PowerLee »

The GLX will have the full climate control system, ( The one that turns itself on & off & annoys the hell out of you! ) Have someone stick there head next to the grill & switch off the engine, They will hear if its the cooling fans winding down.
Also if the cooling fans are running all the time the ignitions on it could be a faulty temp sensor & the Bitron box might have switched to safety mode to protect the engine from overheating.
Gotta New Pug
Posts: 43
Joined: 11 Jan 2005, 08:13
Location:
My Cars:

Post by Gotta New Pug »

Nope not the fans running, or switching off, they seem to work as they should when engine gets hot, if I rev engine above say 3000 RPM and turn engine off the noise comes from the lower half of the rear of engine, as far as I can see, there are no fans around the bottom rear of engine, but view is restricted by some sort of engine protector plate covering the whole bottom of engine!
Gotta New Pug
Posts: 43
Joined: 11 Jan 2005, 08:13
Location:
My Cars:

Post by Gotta New Pug »

Oh, sorry, yeah its the full C/C system in my car, I have it set on manual though to avoid the on off auto setting!
PowerLee
Posts: 1260
Joined: 01 May 2004, 19:49
Location: United Kingdom
My Cars: Current - Slightly modified 2016 Pug 308 Puretech 130 Allure
Past:
2003 - 206 GLX TU3JP & 206 SE ET3JP4
1995 - 405 Executive XU10J2
1996 - 406 GLX XU10J4R
1994 - 405 GTX XU10J2
x 1

Post by PowerLee »

Wait untill the summer time when its hot, The climate control will take great delight in switching its self on to cool the car down, EVEN if its set on manual! lol
Does it make the noise if you run the engine but NOT move the car?
Gotta New Pug
Posts: 43
Joined: 11 Jan 2005, 08:13
Location:
My Cars:

Post by Gotta New Pug »

Yeah noise is there if I have engine on but dont drive car, dont put in gear, BUT only does it when I rev the car and turn engine off. If i drive the car its for definate that i'll hear the noise when I turn off, if I turn engine on and DONT rev engine and turn off, I dont hear the noise - does this make sense?
wheeler
Posts: 6847
Joined: 21 Sep 2002, 19:07
Location: United Kingdom
My Cars:
x 717

Post by wheeler »

i dont know for sure about the 406 but it could be a webasto heater cooling down,they are fitted to lots of cars in cold countries,but some higher spec UK model citroen xantias (witch is similar to the 406) have these fitted,see this topic > http://www.andyspares.com/discussionfor ... ms=webasto
PowerLee
Posts: 1260
Joined: 01 May 2004, 19:49
Location: United Kingdom
My Cars: Current - Slightly modified 2016 Pug 308 Puretech 130 Allure
Past:
2003 - 206 GLX TU3JP & 206 SE ET3JP4
1995 - 405 Executive XU10J2
1996 - 406 GLX XU10J4R
1994 - 405 GTX XU10J2
x 1

Post by PowerLee »

Isnt the Webasto heater only fitted to high spec diesel models?
wheeler
Posts: 6847
Joined: 21 Sep 2002, 19:07
Location: United Kingdom
My Cars:
x 717

Post by wheeler »

i didnt even notice that it was a petrol[:I],anyway like i said i dont really know the 406 well. some citroen electric vehicles do have a webasto type heater that runs off petrol as this is the only way to generate heat for the interior heaters but apart from that ive never heard of a petrol car with one in this country.
Post Reply