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I have a 2006 IS 220 diesel with 181,000 miles and this is my first problem.

Tonight I came back from Birmingham and I could smell diesel inside the car and thought it was other motorists fumes as had window open. Got to my destination 30 miles later and could smell a slight diesel smell inside when stationary. Also noticed the engine noisier than normal. Popped bonnet and pulled off engine cover and there are 4x silver coloured items from front to back with what looks like tiny 4mm allen key ends.

The 2nd one from the front was releasing air and a fut fut noise and ticking. The item had alloy pipes linking the 4 items on the top left of the engine. Are these the Diesel Injectors? How do I fix it? I'll take a photo tomorrow. Hoping O ring failed as drives faultless and everything works.

James.:thumbsup:

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Hi James, yes that sounds like an injector.

 

Peer down at the base of each and do you see any black goo?

 

I hope it's an easy fix.

 

Good luck, Lee

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4 hours ago, Farqui said:

Hi James, yes that sounds like an injector.

 

Peer down at the base of each and do you see any black goo?

 

I hope it's an easy fix.

 

Good luck, Lee

Only looked at the base of the blowing injector and no black goo. Going to phone a diesel specialist and see what they say. I'll remove it and hope a seal is perished! Started it today and spray of diesel mist leaking in the light.

Can I fit a used one? Do they need coding or programming to the car? Or so long as the part number is the same a direct replacement.

Here is a picture of the problem.

Many thanks. James.   

Injeter.jpg

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It's good if the injector is loose, they can be stuck fast.

Hopefully a rubber seal and washer will fix it on the cheap. The specialist will sort it for you - good call.

Yes injectors typically need recoding but I'm not sure about your model.

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Got a new washer and O ring from Lexus and finally got round to looking at it Monday. Took the injector out and looked at the metal washer and couldn't remove it as needed a coat hanger wire to make a hooked end as around 7 inches deep inside the castings. Shined a torch and it looked in good condition so left it as is.

The O ring on the other hand was well perished and part missing. cleaned injector and fitted new O ring. Refitted everything and primed the fuel system and started the car, thankfully not blowing, so fixed!

Many thanks to this write up.

    

At least I have spares if another fails. I like my Lexus. Hope any other jobs are an easy and cheap fix.

James.

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Well done

  • Thanks 1

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Hi James, 

Wondering if this is similiar to what you experienced? Sounds the exact same. I'd appreciate any feedback. Not sure if I want to attempt it myself. Few people trying to talk me out of it! Mine is a 2008 220d 

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Yes exactly the same noise. If you put your fingers round the injectors (round allen key hex head, silver things) one at a time you will find the faulty one as a breeze blows on you, ie diesel vapour. I could also see non ignited diesel mist escaping from mine. Your rear 2 look suspect as dirty residue around area.

 I was quoted £150 to sort from a diesel specialist. Worth a go yourself. Just follow the handy how too guide. I thought I'll get a specialist involved if the old injector wouldn't come out. Thankfully with prising, pulling and twisting it came out fine.

Good luck with getting it sorted.

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“I love it when a plan comes together” 😀

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I would be very wary of putting my finger ( or any other body part) anywhere near a suspected leaking super high pressure fluid line.

High Pressure Fuel Oil leak injury shown here at section 2.3 

WARNING :  Graphic Content.

http://www.hse.gov.uk/research/rrpdf/rr976.pdf

Paul M.

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