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Odd noise from engine?

  • Lambert
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14 Jan 2018 15:16 #188366 by Lambert
Just got back from lunch and Ermintrude is making a noise a lot like a weed strimmer. Sort of high pitched buzzing whirring noise related to engine speed. Have had a listen with a long bar and the only rotating part that is even vaguely louder than the others is the pas pump but it's loud in a different way to the noise. I am going to put a bit of belt dressing on the belts before I head back outfor a test, but I doubt it is that. Anyone else had similar?

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14 Jan 2018 15:19 #188367 by Lambert
Replied by Lambert on topic Odd noise from engine?
Oh also there's a temperature aspect, the warmer it gets the quieter it gets?

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14 Jan 2018 16:14 #188370 by Lambert
Replied by Lambert on topic Odd noise from engine?
Ok so it was doing the noise across town to pets at home, 15min in there, back to car, dipped oil, started up to come home and noise gone. Or sufficiently minimised to be lost in general background. Bit worried that I didn't find a source and rectify but happy it's normal? What might it have been so I can look for witnesses marks to prevent reoccurrence?

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14 Jan 2018 16:49 #188372 by MadsV
Replied by MadsV on topic Odd noise from engine?
I sometimes get a buzzing sound from the power steering, but it disappears after some kms

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14 Jan 2018 16:56 #188373 by CharlesS
Replied by CharlesS on topic Odd noise from engine?
As MadsV posted.....; the power steering pump can make a sounds when the pump is cavitating due to air being drawn in when the power steering fluid is low or when the internal reliefs lifting.
Check your power steering pump level....
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14 Jan 2018 17:03 #188375 by 1066Boy
Replied by 1066Boy on topic Odd noise from engine?
Sounds similar to mine. It was the power steering belt tensioner. Noisy when cold but hardly noticeable after 5-10 mins of running.

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14 Jan 2018 17:15 #188377 by Lambert
Replied by Lambert on topic Odd noise from engine?
Ok thanks all. Will confirm fluid level. Cheers.

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14 Jan 2018 17:30 #188381 by Busta
Replied by Busta on topic Odd noise from engine?
I'd say power steering belt tensioner too.
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14 Jan 2018 18:25 #188386 by Lambert
Replied by Lambert on topic Odd noise from engine?
The tensioner was replaced about 2 years ago and the noise it made was very different, that and the tensioner is quiet.

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14 Jan 2018 22:10 - 14 Jan 2018 22:11 #188394 by Scimike
Replied by Scimike on topic Odd noise from engine?
My money is on lack of PAS fluid. Not experienced with Jimny, but had Reliant Scimitar that made same noise when PAS sprang a leak. I am new to Jimny ownership so please ignore if wrong....

Mike
Last edit: 14 Jan 2018 22:11 by Scimike.
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15 Jan 2018 05:00 #188399 by Lambert
Replied by Lambert on topic Odd noise from engine?
Ok so i checked the fluid and it was close to full so I added at most 30ml to that. It was still quiet this morning starting from cold. If i didn't know better it almost sounded like a zip tie end in the fan but how it could have got in there i don't know because I have the extra heat exchanger for the air conditioning so i doubt it has come in from the front. I guess I will be keeping a close eye on it in the event of a repeat. Thanks all for the comments

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15 Jan 2018 18:37 #188416 by Lambert
Replied by Lambert on topic Odd noise from engine?
Right, all of you who suggested the pas tensioner could be onto something. The noise has altered and is no longer like a strimmer but is now what I would expect from a dying bearing. A replacement is on the way. Will see if it improves matters. Thanks again all.

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