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When you put a new thread up in the Workshop please put your car's year and model in the thread title, along with just a brief indicator of the problem.

Car Year - Car Model: Brief description of issue. EXAMPLE- 1999 9-3. Problems starting when hot.

Please also add as much information as you can about the problem, to your post.

This will help us to help you, without having to ask basic details such as what car you have.


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PostPosted: Mon Jun 10, 2019 10:34 pm 
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Joined: Sat Jan 18, 2014 3:23 pm
Posts: 1735
Location: Sussex
Car Model: '04 9-5 Aero est., '97 9K Aero
sounds wrote:
Perhaps my memory is failing me, but I'm 99% sure the one which stays in place (located near the power steering reservoir) is between the purge solenoid and throttle body, the one to be eliminated is part of the second leg which tees into this line and connects to the cobra pipe (as highlighted in red in the diagram above). Can't check though, as my current 9-5 is a 2005 model year - so therefore doesn't have it ...


Agreed.


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PostPosted: Wed Jun 12, 2019 2:05 pm 
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Joined: Wed May 11, 2016 11:19 am
Posts: 23
Location: The Cronx
Car Model: 9-5 HOT Aero Wagon
Thanks again for all your help guys, fully deleted the pipe and check valve, could feel some restriction at the top end under pressure so wound the actuator out 1/2 turn and I'm now boosting freely to 14.6psi 8)

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9-5 MY2002 HOT Aero Wagon
'72 Cal-look Beetle


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PostPosted: Wed Jun 12, 2019 3:32 pm 
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Joined: Thu Feb 14, 2008 10:47 am
Posts: 6584
Location: Queenborough, Kent
Car Model: 9k, 9-5 Aero & a Jaaag
Good to hear it’s now working properly, 1 Bar is about right for a stock 9-5 Aero.

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'98 9000 2.3T CSE, stage 3
'04 9-5 Aero manual, stage 3
'08 Jaguar XFR


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PostPosted: Thu Jun 13, 2019 10:14 am 
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Joined: Wed May 11, 2016 11:19 am
Posts: 23
Location: The Cronx
Car Model: 9-5 HOT Aero Wagon
Just thought I'd do a little list of things that were checked/replaced sorting the issue (some of this was unnecessary, done only for piece of mind in the future as car is already over 180k)

    Vac hoses including BCV hoses replaced
    Cobra to compressor o-ring and V clamp replaced
    Throttle body inlet pipe o-ring replaced
    Full bolt mod carried out: T-piece between BCV and Cobra deleted, then EVAP hose section back to and including check valve located next to power steering reservoir deleted.
    Wastegate actuator replaced.
    Intercooler hoses checked and tightened (Maptun replacements fitted around a year ago)
    Brake booster vacuum pump + pipework checked for leaks (auto box only)
    Top cap on Maptun recirculating dump valve had loosened off so cleaned and tightened up

Def worth whipping out the old Fuse #17 for at least an hour after any major adjustments too.

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9-5 MY2002 HOT Aero Wagon
'72 Cal-look Beetle


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PostPosted: Thu Jun 13, 2019 4:01 pm 
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Joined: Thu Feb 14, 2008 10:47 am
Posts: 6584
Location: Queenborough, Kent
Car Model: 9k, 9-5 Aero & a Jaaag
If it makes you feel any better, I did most of what you did (and more) chasing the lack of power when warm on one of my previous 9-5 Aero estates, which turned out to be due to a partially stripped thread on the thermostat cover ... :wall:

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'98 9000 2.3T CSE, stage 3
'04 9-5 Aero manual, stage 3
'08 Jaguar XFR


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PostPosted: Thu Jun 13, 2019 4:23 pm 
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Joined: Sat Jan 18, 2014 3:23 pm
Posts: 1735
Location: Sussex
Car Model: '04 9-5 Aero est., '97 9K Aero
“Full bolt mod carried out: T-piece between BCV and Cobra deleted, then EVAP hose section back to and including check valve located next to power steering reservoir deleted.”

How does your fuel vapour get from the charcoal canister into the intake tract? If I read you right you’ve deleted both the routes.

cardboaardcutout


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PostPosted: Mon Jun 24, 2019 10:53 am 
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Joined: Wed May 11, 2016 11:19 am
Posts: 23
Location: The Cronx
Car Model: 9-5 HOT Aero Wagon
cardboardcutout wrote:
“Full bolt mod carried out: T-piece between BCV and Cobra deleted, then EVAP hose section back to and including check valve located next to power steering reservoir deleted.”

How does your fuel vapour get from the charcoal canister into the intake tract? If I read you right you’ve deleted both the routes.

cardboaardcutout


Sorry, not a great explanation! T-piece still in place and connected to charcoal canister, but hose from BCV/Cobra deleted, t-piece blocked off and check valve after t-piece deleted.

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9-5 MY2002 HOT Aero Wagon
'72 Cal-look Beetle


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PostPosted: Mon Jun 24, 2019 10:58 am 
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Joined: Wed May 11, 2016 11:19 am
Posts: 23
Location: The Cronx
Car Model: 9-5 HOT Aero Wagon
sounds wrote:
If it makes you feel any better, I did most of what you did (and more) chasing the lack of power when warm on one of my previous 9-5 Aero estates, which turned out to be due to a partially stripped thread on the thermostat cover ... :wall:


Such a minefield isn't it, at one point while investigating I found that the o-ring at the throttle body/intake pipe join had collapsed and melted at the back left where the foam insulator protects the sensor. Take a quick look and you'd say it was fine but about a 5mm section of it had just stretched and melted!

It's by no means been just one thing causing problems here anyway, car has never run as well as it does now though so all worth it 8)

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9-5 MY2002 HOT Aero Wagon
'72 Cal-look Beetle


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