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Engine making worrying noises

MouldyOldDough
MouldyOldDough Posts: 2,426 Forumite
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edited 14 June 2022 at 7:13AM in Motoring
My 1.0 Suzuki engine boosterjet engine is making worrying noises 
The car is 5 years old and has done less than 15,000.miles 
It has been serviced annually by the main dealers 
It sounds "tappety" /rattly at  the top end - especially at tick over 
The oil level is fine 
What could it be? 
«13

Comments

  • pogofish
    pogofish Posts: 10,853 Forumite
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    edited 14 June 2022 at 10:30AM

    I once has an annoying/very worrying top-end rattle develop on my car.  Which was old enough that if it had had anything major, I would have had to scrap it as I couldn't afford the repair.

    After several months of praying it wouldn't die and studiously ignoring the noise, I was doing something else under the bonnet and suddenly it struck me - "Oh, that's where I left that mole wrench" - triangular water pump and I'd hung the wrench on top of it whilst doing something else.

    Removed it and the rattle was gone..!   :blush:   :smiley:
  • MouldyOldDough
    MouldyOldDough Posts: 2,426 Forumite
    1,000 Posts Third Anniversary Photogenic Name Dropper
    pogofish said:

    I once has an annoying/very worrying top-end rattle develop on my car.  Which was old enough that if it had had anything major, I would have had to scrap it as I couldn't afford the repair.

    After several months of praying it wouldn't die and studiously ignoring the noise, I was doing something else under the bonnet and suddenly it struck me - "Oh, that's where I left that mole wrench" - triangular water pump and I'd hung the wrench on top of it whilst doing something else.

    Removed it and the rattle was gone..!   :blush:   :smiley:

    This is "INTERNAL"
  • Herzlos
    Herzlos Posts: 15,440 Forumite
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    What condition is the oil in?

    If you're only doing 3000 miles a year, you may need to service it more often than annually.

    I'd get a local garage to have a look at it just to be safe, though.
  • peter3hg
    peter3hg Posts: 372 Forumite
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    Likely to be either the injectors "clicking" or the hydraulic lifters.
    Can you narrow down the noise? Putting something like a screwdriver to your ear and touching it to the engine should help to locate it.

    It isn't uncommon for modern engines to have some noises like this at idle. BMWs often get tappity lifters and other cars can have clicking injectors. It isn't necessarily an issue unless it is getting worse.
  • Benny2020
    Benny2020 Posts: 525 Forumite
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    If he takes it to a main dealer they will find a problem.
  • Nobbie1967
    Nobbie1967 Posts: 1,631 Forumite
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    Maybe a sticking hydraulic lifter? The low mileage might be a contributing factor. You can get treatments that you drop in the oil to help free it and then take it for a good hard drive to get the oil hot. Of course if it’s a different fault then this is probably not a good idea as it may cause damage.
  • MouldyOldDough
    MouldyOldDough Posts: 2,426 Forumite
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    Herzlos said:
    What condition is the oil in?

    If you're only doing 3000 miles a year, you may need to service it more often than annually.

    I'd get a local garage to have a look at it just to be safe, though.
    It was serviced 2 months ago
  • MouldyOldDough
    MouldyOldDough Posts: 2,426 Forumite
    1,000 Posts Third Anniversary Photogenic Name Dropper
    peter3hg said:
    Likely to be either the injectors "clicking" or the hydraulic lifters.
    Can you narrow down the noise? Putting something like a screwdriver to your ear and touching it to the engine should help to locate it.

    It isn't uncommon for modern engines to have some noises like this at idle. BMWs often get tappity lifters and other cars can have clicking injectors. It isn't necessarily an issue unless it is getting worse.
    It sounds as if its in the head 
  • MouldyOldDough
    MouldyOldDough Posts: 2,426 Forumite
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    edited 20 June 2022 at 1:07PM
    OK today took car to Suzuki main dealers who diagnosed an air con issue - the noise ceased when air con off..
    The problem is now that the aircon doesn't operate now. - only discovered on way back home. It's totally dead.
    So what causes a noise and non operational aircon?
    Aircon has never been serviced in 5 years of main dealer servicing
    I guess a recharge minimum? 
  • MouldyOldDough
    MouldyOldDough Posts: 2,426 Forumite
    1,000 Posts Third Anniversary Photogenic Name Dropper
    Any suggestions? 
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