User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 7 of 7

Thread: Astra 1.9cdti 16v no boost at all - not mine

  1. #1
    Regular Member
    Join Date
    Sep 2007
    Location
    West
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default Astra 1.9cdti 16v no boost at all - not mine

    My brother inlaw's Astra has no boost what so ever... i have checked the vac pump - it works, i can't tell if the vac solinoid is working correctly... would a failing solinoid prevent the turbo from spooling?

  2. #2
    Regular Member nutron's Avatar
    Join Date
    Jul 2005
    Location
    South Central England
    Post Thanks / Like
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

    Default

    Failed solenoid would, failed actuator, leaking vaccum hoses, stuck VNTs. Any fault codes?

  3. #3
    Regular Member
    Join Date
    Sep 2007
    Location
    West
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    no fault codes at all, car idles fine & drives minus the boost...

  4. #4
    Regular Member
    Join Date
    Sep 2007
    Location
    West
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    just to add... the vac is fine going into the solenoid, just cannot feel the vac going to the actuator, was trying to get to it on the driveway in the rain yesterday doh!

  5. #5
    Regular Member nutron's Avatar
    Join Date
    Jul 2005
    Location
    South Central England
    Post Thanks / Like
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

    Default

    Unplug the hose to the actuator and with the engine off, suck on the turbo to move the actuator. Make a vacuum in the tube and use your tongue to block the tube, then wait and see if it holds the vacuum for ten seconds. If not then there is a leak, which, might be in the line or the actuator itself. If it holds, take your tongue off and you should hear the actuator move back to the stop. You probably won't hear when you are sucking but you should hear the rapid movement back to the stop, if not do it a few times to be sure. If it is not moving then it is ******ed or the VNTs are stuck.

    Start the engine with the solenoid connected to the vacuum pump but not the actuator and see if there is a vacuum in the line to the actuator. If there is then the solenoid is fine.

    Take off the intake pipe onto the turbo and check the compressor wheel is not moving more than 1mm (this is just a value to give you an idea of the amount of movement there should be).

    If all these things are okay then you might have a sensor issues, MAP/MAF or a big boost leak! Have you checked the U-bend pipes onto the intercooler for tears and around the EGR valve for boost leakage. The ECU will detect a boost leak and offload but not into a full limp mode, the cruise control will still work and it will come out of limp if it thens the leak is gone. That should still give a fault code though.

  6. #6
    Regular Member
    Join Date
    Sep 2007
    Location
    West
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    Quote Originally Posted by nutron View Post
    Unplug the hose to the actuator and with the engine off, suck on the turbo to move the actuator. Make a vacuum in the tube and use your tongue to block the tube, then wait and see if it holds the vacuum for ten seconds. If not then there is a leak, which, might be in the line or the actuator itself. If it holds, take your tongue off and you should hear the actuator move back to the stop. You probably won't hear when you are sucking but you should hear the rapid movement back to the stop, if not do it a few times to be sure. If it is not moving then it is ******ed or the VNTs are stuck.

    Start the engine with the solenoid connected to the vacuum pump but not the actuator and see if there is a vacuum in the line to the actuator. If there is then the solenoid is fine.

    Take off the intake pipe onto the turbo and check the compressor wheel is not moving more than 1mm (this is just a value to give you an idea of the amount of movement there should be).

    If all these things are okay then you might have a sensor issues, MAP/MAF or a big boost leak! Have you checked the U-bend pipes onto the intercooler for tears and around the EGR valve for boost leakage. The ECU will detect a boost leak and offload but not into a full limp mode, the cruise control will still work and it will come out of limp if it thens the leak is gone. That should still give a fault code though.
    Thanks Karl...
    All boost pipes were checked, didn't find any splits they were being sucked inwards as the car was revved as opposed to expanding with boost, i did remove the line to the actuator & could not feel any vac, i could deffo feel vac going to the solenoid however, i will have a go at sucking on the line to the actuator too lol...

  7. #7
    Regular Member nutron's Avatar
    Join Date
    Jul 2005
    Location
    South Central England
    Post Thanks / Like
    Mentioned
    18 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Vauxhall

    Trim : very

    Engine : Z19DTH

    Year : Nosey

    Default

    You can connect the actuator directly to the vacuum, bypassing the solenoid and drive it a little bit to see if you get spool up. This has the potential to seriously damage the turbo because you have no control over it other than your right foot. If you have a boost gauge then you can monitor it fine but I doubt in this case you do. I would suggest not going full throttle and keeping below 1700rpm, then you should not be able to exceed safe working limits and you would know by then if it would spooling up.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. What ECU have mine Vectra 1,9CDTI EDC16C9 or EDC16C39
    By kingarthas in forum Engine & Drivetrain
    Replies: 17
    Last Post: 30th December 2012, 21:06
  2. vectra 1.9cdti and astra 1.9cdti clutch
    By abz123 in forum Vectra C / Signum Car Chat
    Replies: 0
    Last Post: 13th October 2012, 21:01
  3. boost gauge 1.9cdti
    By dean_walsh2001 in forum Vectra C / Signum Car Chat
    Replies: 2
    Last Post: 23rd September 2009, 21:03
  4. Irmi front bumper skirt...MINE MINE MINE
    By Dose in forum Vectra C / Signum Car Chat
    Replies: 17
    Last Post: 11th May 2009, 22:07
  5. Boost gauge on 1.9CDTI
    By nutron in forum Vectra C / Signum Car Chat
    Replies: 26
    Last Post: 1st September 2006, 12:34

Visitors found this page by searching for:

https:www.vectra-c.comforumshowthread.php167226-Astra-1-9cdti-16v-no-boost-at-all-not-mine

1.9 cdti no boost

astra 1.9 cdti no boost

astra 1.9 cdti wont boost

vectra c 1.9 cdti no boost

vectra cdti no boostz19dth turbo not workingastra 1.9 boost leakastra cdti 1.9 hear the boost1.9 cdti turbo actuatorz19dth vacuum solenoidvectra 1.9cdti no turbo pressureUnplugged actuator on Astra vxr no boostastra 1.9 cdti no turbovectra 1.9 cdti turbo not workingopel astra diesel turbo not boostingno turbo astra 1.9cdtiz19dth not boosting1.9cdti no boostastra h 1.9 cdti turbo not kicking inz19dth no boostturbo not kickin in astra 1.9cdtivauxhall zafira 1.9 cdti not boosting properlyvectra 1.9 cdti boost gaugeastra 1.9 vacuum pump

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •