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About carnut1980

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  1. Gs450h engine rattle on start up, tappety, help?

    Thanks for the advice, i don't really want to change the oil, as it looks good as new, and i have added a £20 bottle of slick 50 to it. Does the oil pump run off the timing chain? Is there a possibility that there is a slight delay in the oil pump doing its thing, on cold start? IE rattley until the oil gets pumped round? Theres no lights on the dash when it happens, but it is a combination of a bag of spanners, coupled with rough running, i tried to film it on my phone, but it smoothed out before i could!
  2. Gs450h engine rattle on start up, tappety, help?

    ok, so you think an oil filter change might do the trick?
  3. GS450H Leaky rear section exhaust, at the 'split'

    Yes i looked up that stuff, i think i will give it a shot
  4. The rear section of my exhaust has a blow,at the 'split' where the two rear pipes separate, i can pretty much see it, but neither the Holts gun gum, nor the Granville paste, seem to be able to stick for long enough. A few hours drive, and the dried paste has managed to push out and away. I don't really want to spend £600 on a new rear section, surely there must be a simpler way to repair it? Even if it involves a 'bodge'? cheers all
  5. Hi all, my 2007 Gs450h tends to produce a clattery sound from the engine, when it hasn't been used for a while. I find it more prominent when i have not driven it for at least 3 days, but i have heard it briefly as little as 24 hrs after its last drive. It sounds like its running dry, like there is no oil present on start up and for the first few seconds of running. It has full main dealer history, high miles, oil is at correct level ,and is a still the same colour it was when it came out of the bottle. I have added slick 50 to the oil, but the anomaly is still there. Like i say, most of the time i don't hear it, as i use the car a lot, and when it happens its brief, but i want to know what it is. If i drive it to my mechanic, the issue won't manifest itself, as i will have just used the car. It sounds like an engine running with no oil, like a bag of spanners, briefly, before going back to its normal, quiet self. Does the oil pump run off the timing chain, and is it possible that theres a brief delay in it pumping the oil, where, after being used reasonably prior, there is still sufficient oil coating the valves/pistons etc, that the noise isn't heard, if that makes sense? Cheers all
  6. gs450h clunking from front brakes

    Cheers shahpor, i will take the front wheels off in a couple of weeks when i am off work, and try johns method, though i very much doubt it has anything to do with anti rattle shims
  7. gs450h clunking from front brakes

    Cheers. I'll try and see what the issue is with the vid playing. I have had cars with missing anti rattle shims, they made tinny noises when driving along, particularly over speed bumps. I have to say this doesn't sound like that. But I will jack the car up and have a look round
  8. Hiya yall, yeh from a breaker on ebay, yeah the two sensors came with it. Fitted by ATS euromaster, i wouldn't dare go anywhere near halfords, and i have heard some bad stories about kwikfit (tyre salesmen, nothing more). All sorted, but i do have a clunking coming from my front brakes, can you guys have a look at my latest post regarding this? I added a video with the noise! cheers
  9. I had a used centre section fitted today. Quiet as a whisper now. Bloody hard to track down that part, worked out £280 fitted. Or i could have gone for stainless steel at £600 plus i would have had to travel. As it is all now silent, i assume i will not be seeing that code again!
  10. Hello. My 2007 gs450h makes a metallic knocking sound from the front brakes. It is more prominent when I move forward slowly, then brake, then reverse slowly, then brake, etc, as opposed to during general driving at speed. It doesn't sound like worn bushes. It has a higher metallic pitch. Front pads and discs are new. But the sound was there before I changed them anyway. Please see attached video and have a listen. It's driving me nuts. Cheers 20170904_133321.mp4
  11. Thanks for the info. Is the attached pic the 'centre section' on a gs450h? Sorry for sounding ignorant, but the section looks different from underneath the car, viewed from a tight angle, as opposed to this. The code i get states its 'bank 1' catalytic converter issue, which CAT would that be here? Cheers
  12. Hi all, my gs450h has a blowing centre section exhaust, i assume its the original. The car has done 327k miles, yes you read that right. Occasionally the EML comes on, with error code p0420, Search Results P0420 LEXUS Catalyst System Efficiency Below Threshold Bank 1 I can clear it, but it does come back after a few days, the problem is no doubt related to the blowing. Can these be got as used parts? Im struggling to find one. Do these have just the one CAT, or two? cheers all!
  13. Hi all, please don't be calling me cheap or tight here, but my right hand wing mirror glass is smashed, i tried the self adhesive 'universal' stuff that you cut to size, but it totally distorts the view. I don't want to pay £120 for the glass, or £200 for an entire second hand mirror in the wrong colour (electric, heated, folding), so my question is: What similar mirror glass can i pick up for £10-£20, even if its slightly too small and not heated? Anything will do, thr rx400h mirror looks close, but even a mondeo or astra miror glass is fine, provided its not too big, and will fit inside the recess? cheers guys/girls!
  14. P0420 LEXUS - Catalyst System Efficiency Below Threshold Bank 1 Apparently Possible causes are: Three way catalyst converter Bank 1 Exhaust tube Intake air leaks Fuel injectors may be faulty Fuel injector leaks Spark plugs may be faulty Improper ignition timing Engine Control Module (ECM) I also read somewhere else that it could be a cat converter. car is a high mileage 2007 gs450h, new MOT, full lexus SH, recent service, runs perfectly, but the EML did light up the other day, i read and cleared it, but surely if it lit up and this code showed, then there could be a minor issue? What should i do first? Give it a good motorway run? Or perhaps add some injector cleaner into fuel? If its an oxygen sensor, which one? I have techstream software somewhere, would that tell me? cheers guys/girls!
  15. cheers john. I have already had a look at this thread. My car is a 2007 gs450h. Fuse is good. No visible damage to window tracks