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The mkiv Supra Owners Club

weird rattle from engine on low revs


wilko

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just wanted ideas as to what this noise could be, thought it was the aircon, but it appears when it is not on

i am getting a rattle noise from behind the timing belt cover( or this is where it appears to come from). i first noticed it when my air con kicked in on idle , so turned a/c off and the noise is around 850rpm, but goes when any more revs are applied

only noticable when bonnet up, but annoying never the less. with the air con on and idling the noise appears everytime the a/c pulley kicks in, but i think this is coincidental.

any help greatfully appreciated

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Guest gzaerojon
just wanted ideas as to what this noise could be, thought it was the aircon, but it appears when it is not on

i am getting a rattle noise from behind the timing belt cover( or this is where it appears to come from). i first noticed it when my air con kicked in on idle , so turned a/c off and the noise is around 850rpm, but goes when any more revs are applied

only noticable when bonnet up, but annoying never the less. with the air con on and idling the noise appears everytime the a/c pulley kicks in, but i think this is coincidental.

any help greatfully appreciated

 

 

just one idea really, check the heat shield over on the turbos (i think N/As have heat shield too) mine was loose for a while and it did the same thing on low revs

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thanks for the replies folks it turns out to be the auxillary drive belt tensioner thats gone stiff and the bearing is shot ordered new from local toyota dealer 80 quid plus the dreaded vat, so not too expensive a fix:)

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