Rattle in Engine Bay

Turbo, Manifolds, Exhaust, Intercooler, Internals etc

Rattle in Engine Bay

Postby Gravy72 on Wed, 01 Jul 2020 6:07 +0000

Read through all other posts with the same Topic Heading and none of the symptoms match what I am experiencing.

I own a 2005 Kun26R with a D4D engine, second owner, 210K on the clock.

When I turn the ignition to on, engine stationary, immediately I hear a rattle at rear of the engine bay on the drivers side. Sound appears like it is relay or control valve chatter.

Anyone give me a hint on what I should be looking at to rectify the problem before I start pulling things to bits. There does not appear to be a degradation in vehicle performance.
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Re: Rattle in Engine Bay

Postby hiluxxury on Wed, 01 Jul 2020 6:19 +0000

Sounds like the turbo stepper motor. Perfectly normal for it to do that.
I might be wrong.

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Re: Rattle in Engine Bay

Postby Gravy72 on Thu, 02 Jul 2020 1:29 +0000

Thanks, senility must be settling in, I have not previously noticed this noise.
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Re: Rattle in Engine Bay

Postby Gipsy on Thu, 02 Jul 2020 1:34 +0000

Maybe you haven't heard that noise because you just turn it on and start it. Mine makes a gravelly noise coming from the stepper motor, and always has. Its the stepper motor going through a setup before you start the engine. Nothing to worry about. You can worry if it doesn't do it because it's stuffed ;) it's not senility, just a concerned elder worried in case something is wrong with his treasured Hilux :D One benefit of getting older is you sometimes go deaf and can't hear anything, thus eliminating the undue worry about strange noises :?
Cheers Gipsy :D although I'm sure somebody will challenge that :lol: even Einstein wasn't certain of his theories.
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