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Thread: Z19dth engine problems

  1. #1
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    Vehicle : Vectra C

    Trim : sri

    Engine : 1.9 cdti 150

    Year : 2005

    Default Z19dth engine problems

    Hi,

    I noticed i posted a similar thread yesterday in another part of this website and noticed this is where is should be. So decieded to put it in here, to make sure i could get the best help.

    Vauxhall Vectra 1.9 CDTI 150
    2005 160,000 MILES

    * Engine starts fine, put stutters, bit of shaking, slight rattle/knocks where its not idling properly. Spanner light is on, took it to Halfords autocentre today, then plugged it in, and it come up with codes;

    P0621 - Generator
    PO380 - Glow device circuit

    Basically told me they dont do the repairs needed but they seem to think this could be the problem i have?

    Phoned another person they recommended, and they can only look at it on Monday. Usual mechanic due tomorrow now. Wether he can source it.

    From answers from posts already got on this site, and a lot of googling, other things suggested are egr, injectors, glow plugs.

    Anbody help with any suggestions if glow plugs can make it like this?

    When i brought it back from picking it up once engine was at operating temp was fine, no issues whatsoever. No excess smoking/ pulling fine etc etc

    As per other post, i had squealing noise, Halfords said it was the belt or tensioner, just basically said change both.

    Other problem, temp guage not working, suggested new thermostat, fair enough,

    Abs light on, not checked to see if abs sensor plug back in yet? If its sensor, arent these part of the hub?

    Any help or advice gratefully appreciated

  2. #2
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    Vehicle : Vectra C

    Trim : sri

    Engine : 1.9 cdti 150

    Year : 2005

    Default

    just found this in another search, any way to check a glow pug is working???

    Irregular Engine Behavior

    Even after you have your vehicle started, your glow plug can still affect your engine until it becomes properly warmed. You might notice your engine misfiring as a result of a bad glow plug. Listen to your engine as you shift into gear. If you detect the sound of rough idling or a piston misfiring that stops after about 10 minutes of driving, check your glow plugs.

  3. #3
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    Vehicle : Vectra C

    Trim : sri

    Engine : 1.9 cdti 150

    Year : 2005

    Default

    update: curiosity, took it out then,

    started fine, rough idling, foot flat down for 1 minute with no increased revs.

    then started to come up, spanner illuminated all the time.

    Put it in gear and started to go hardly any acceleration as should be, went up and down an industrial estate couple of times, power coing back as should and then the spanner went off, then took her on a road 2 miles each way and back, and was fine.

    So looking likely that the glow plugs/circuit could be problem here. Mechanic due tomorrow. Wish i knew how to test relay and plugs i would of give it a try, eager to know!!!

  4. #4
    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    Need a multimeter to carry out the tests

    ohm meter across each glow plug in then looking for 12v power to each one to show circuit is ok

  5. #5
    Regular Member stret's Avatar
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    Vehicle : signum

    Trim : elite

    Engine : 1.9 cdti 16v 225bhp

    Year : 54

    Mileage : 150k

    Default

    take em out hard wire to a battery if they glow hot there working for a guess, i worked at a garage when i was like 14 on sat morn and im sure i remember testing some like this but i may be wrong i may just of been messing about lol

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    Vehicle : SIGNUM 1.9 CDTI ELITE

    Trim : ALL OPTIONS ELITE

    Engine : 1.9 CDTI 150

    Year : 2005

    Mileage : 140,000

    Default

    I am not sure but I think if you put a multi meter across the top pole and go to earth then it should read more than 12v as anything less would be zero meaning the circuit is broken, the resistance you measure is in ohm's I think and the glow plugs drop off in this value as they wear, there is a proper given value for the reading but I am not sure for this car what ohm's it should be, sorry not a mechanic but it is something like that.

  7. #7
    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    Should be under 1 ohm for a good plug

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    Vehicle : Vectra C

    Trim : sri

    Engine : 1.9 cdti 150

    Year : 2005

    Default

    cheers all for your help, il give an update tomorrow, is there only 1 glow plug relay/controller? how to test if this is naffed?

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    Vehicle : Vectra C

    Trim : sri

    Engine : 1.9 cdti 150

    Year : 2005

    Default

    just found these pictures, first picture of the relay, and apparantly 2 fuses in engine bay for glow plug relay/module,

    any ideas how to test
    611927101_tp.jpg

    0_0_productGfx_bd65134a4832baddb1ddd260af5ac700.jpg

    autodata.jpg
    Last edited by scourslane; 4th March 2013 at 23:03.

  10. #10
    Administrator plasma's Avatar
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    Vehicle : Vectra

    Trim : SRi

    Engine : 150

    Year : 05

    Mileage : 74000

    Default

    No response at all to throttle from a cold start points to the EGR being blocked. After a minute or two after the car is started throttle response works again? All good points given on glow plugs, readings are approx 4-5 ohms on a multimeter. anything higher will give you a fault code.
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