Intercooler or turbo issue. - Page 3

cheshired5 · Dec 10th, 2015, 19:53

So did they diagnose overboost with car plugged in and stationary?

D5meister · Dec 10th, 2015, 20:48

The turbo is told when to be on or off with an ecu signal to the tcv.

The tcv ports vac to the waste gate actuator, to allow exhaut gas to either spill or blow on the tubine.

The tcv is a common fail on these cars, can be cleaned and ressurected if lucky.

If your tcv is malfunctioning the boost can be excessive.

Good your ic is ok.

But beware the overboost may blow the ic.

Tpot · Dec 11th, 2015, 20:33

Where is this tcv valve located. Is it easy to clean. Worth trying isn't it.

Thank you

D5meister · Dec 11th, 2015, 22:21

If yours is 2003 D5 its like this

http://www.ebay.co.uk/itm/like/22068...s=true&ff13=80

Its located in the middle at the front of the engine.

CheshireD5 has a vid

https://www.youtube.com/watch?v=BPtABczQk3E

Dec 10th, 2015, 19:53	#21
cheshired5 Premier Member Last Online: Dec 26th, 2021 13:42 Join Date: Dec 2013 Location: Crewe	So did they diagnose overboost with car plugged in and stationary? __________________ 2002 S60 SE D5 Manual 209000 miles

Dec 10th, 2015, 20:48	#22
D5meister Premier Member Last Online: Feb 10th, 2024 19:13 Join Date: Nov 2008 Location: Huntingdon	The turbo is told when to be on or off with an ecu signal to the tcv. The tcv ports vac to the waste gate actuator, to allow exhaut gas to either spill or blow on the tubine. The tcv is a common fail on these cars, can be cleaned and ressurected if lucky. If your tcv is malfunctioning the boost can be excessive. Good your ic is ok. But beware the overboost may blow the ic. Last edited by D5meister; Dec 10th, 2015 at 20:52.

Dec 11th, 2015, 20:33	#23
Tpot New Member Last Online: Mar 8th, 2016 18:36 Join Date: May 2015 Location: Swansea	Where is this tcv valve located. Is it easy to clean. Worth trying isn't it. Thank you

Dec 11th, 2015, 22:21	#24
D5meister Premier Member Last Online: Feb 10th, 2024 19:13 Join Date: Nov 2008 Location: Huntingdon	If yours is 2003 D5 its like this http://www.ebay.co.uk/itm/like/22068...s=true&ff13=80 Its located in the middle at the front of the engine. CheshireD5 has a vid https://www.youtube.com/watch?v=BPtABczQk3E

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)