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Thread: are these usual problems?

  1. #1
    Regular Member tonypc1's Avatar
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    confused are these usual problems?

    after owning a 97 vectra estate for 3 years and having no problems at all i decided to trade up to a 04 signum 2.0 dti diesel. within 3 months the front offside spring snapped whilst it was sat on the drive,there is a rumbling on the rear,which i am convinced is a wheel bearing but vx say it is uneven tyre wear? (yeah right!) there is only 0.5 mm difference between the two rear tyres, now im having problems with the engine management light coming on when the cars been run at 70mph for about 20 minutes,sometimes less. the cars quite sluggish and its starting to sound like a 100,000 mile taxi. can anybody help me because im starting to wish id never bought the ****** thing. PLEASE HELP

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    Regular Member JuzzyD's Avatar
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    My old B estate was a 2.0DTI and I had problems with the management light coming on and it going into limp mode.

    There are various possible reasons for it, the most common are the MAF sensor, a split vac hose and low oil/oil pressure - with mine it was both a split vac hose and the MAF sensor.

    Check the VAC hoses carefully for splits, and have a look at the MAF sensor - if its very dirty then it may be worth changing it (despite what some people say they don't last forever). You can try cleaning it with something like brake cleaner (which I tried) and mine wa much, much better so I bit the bullet and bought a new one - £70 from memory from LMF.

    Hope this helps, don't give up as the 2.0DTI is actually a good engine.

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    Regular Member tonypc1's Avatar
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    thanks for the help. last night after some poking around under the bonnet i found two perished rubber connectors on what looks like a vacuum operated switch/valve fixed to the front panel near to the headlight on the nearside. anyway to cut a long story short, it cost twenty pence for some ruber hose and now the car is different animal. V.happy for now. Where is the MAF sensor and what does it look like,i'll check that next. thanks again.

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    Regular Member JuzzyD's Avatar
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    Sounds like you've found the VAC hoses, and good news on it being better.

    The MAF sensor will be somewhere in the tubing from the airbox - it should be evident as it will have a cable and plug attached to it. On the B it was about 250mm up the tubing, just past the first bend - I've not looked at a DTI in a C but I would imagine it would be pretty similar.

    Hope this helps.

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    Regular Member tonypc1's Avatar
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    thanks for the help. I'll have a look tmoro and clean it with some carb cleaner ive got in the garage. it sounds similar to the petrol vectra i used to have. i'll let you know how i get on.cheers

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    Regular Member JuzzyD's Avatar
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    If it's even better when the MAF's cleaned, I would then suggest spending some money on a replacement MAF sensor as that really made a difference to my B! Cleaning it will improve it, but you'll never get it back to new.

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