HI ALL

I HAVE A 2003 LC3 D4D 3 LITRE. IT IS EXTREMELY NOISY WHEN IT IS COLD, IT SOUNDS AS THOUGH A LIFTER IS STUCK BUT THE NOISE IS ONLY REALLY BAD AT AROUND 2000 REVS. WHEN THE ENGINE WARMS UP THE NOISE IS HARDLY NOTICEABLE. DOES ANYONE ELSE HAVE THE SAME THING OR KNOW WHAT CAUSES THIS, ANY HELP WOULD BE MUCH APPRECIATED.

CHEERS

PAUL

Paul,

I have just picked up my 3.0 D4D Colorado. I am guessing same or v similar engine to yours. Fully serviced by Toyota before I picked it up from them. Engine noise? Oh yes! same as yours. Hush quiet when warm, at idle and cold a tad noisey...... especially when I leave the house for morning shifts

Dragon

Have you guys tried addtives for the hydrolic valves in the engine? to less down the sound of the valves ... good luck trying!!!



Ali Brunei Darussalam

Thanks for the replies guys. Its a small comfort to know its not just mine doing it. I flushed my engine out when changing the oil but it has made no difference. Not even sure if it is the hydraulic tappets. It would be nice to know a definate cause before stripping anything down. Please let me know if you find out any more info.

Kind regards, Paul

the noise your getting is more likley to be injector knock which is common on the toyota diesels at the moment the noise is worse when cold the fix is a set of new injectors and high pressure pipes im afraid

sorry lads

Well I'm not too downhearted as mine has a FTSH and was service by them. It's Toyota approved so has a comprehensive 12month warranty. I think it is a characteristic of the engine, but now I have doubt in my mind I'm going to listen to another one and see if there's much difference. I'll let you know.

Sounds like this could be an expensive fix for me. Does anyone know if this will cause damage to the engine if left. I really thought Toyota would have done better than this. I'm very disappointed after spending so much money to buy the car in the first place!

eventually the injector will stop working so your engine wont start

The 3 litre surfs knock on cold also,But not always . seems to come from the rear of the bulkhead looking at the engine.


SOUNDS LIKE TAPPETS TO ME .

[size="3"][/size]Well guys, mine has been left at Toyota for them to have a look abd listen.
They are keeping it overnight so they can hear for themselves. My other concern is that the oil light now takes 6 seconds to extinguish. The level is spot on, the oil is new, serviced 2k ago by Toyota. Thanks for warranties.

Hope they get to the bottom of this as nobody seems to know for sure! At least yours is under warranty though! Keep us posted.

had mine a week and have noticed the same thing noisy when cold and at low revs ,seems to get quieter when at higher revs .was told this is part of the characteristics of the car .mine has done 90,000 with full history . always thought tappets got noisier the higher you rev the engine .

Sorry about the delay in replying as I have been away and recon the old computer.

Well, took the bus into Toyota and yes, as suggested, one of the injectors was 'sticking' at cold. The staff were excellent and ordered the part plus a new motor for the lumbar support in the seat. Total cost of parts???? £1,200

The injector was replaced under warranty and to be honest - we trust the garages don't we - doesn't seem to have made the slightest difference!!!

I took it to France a couple of days later, she drove like a dream, returned about 33mpg and the same, even when we had emptied the L'Eclerc supermarket of their Xmas supply of Stella, Chardonnay,Shiraz and Champers!!

One big prob tho!

When I took the car in she would start from cold/warm/hot no problem. Since having her back, slower and slower as if the battery was draining.
Eventually last week on a cold Welsh morning she died. RAC ( Toyota warranty) came to the house and diagnosed both batteries were dead. I am a cynic and I can't write what I think or feel but the replacement cost for both hurt.... a lot!!!

So in conclusion, the noise might be a characteristic, electric seats are hellish expensive to repair, if you are going to invade France take a Colorado ( or Prado) and if you have the means, write your reg. no. on expensive removable parts as a crime prevention measure. Try cloning a car where every part is marked!!

Hello again, thanks for the reply DragonCruiser, mine seems to keep going so will leave well enough alone (still annoying though)! Better luck to you in the future. Cheers.

Hi Paul,
My Landcruiser is my second new one and this is very noisy after start up maybe for twenty minutes or more,sounds a lot like pinking but this one is 11mounths old and only 11K on it. I mentioned it to Totota salesman last week but he was non committal about it.
It would put me off a bit. I really like the car ,it is LWB LC4 auto and is a great lazy drive. Always does about 26.5mpg around town and maybe 30-31 on a run. Not too bad for a big lump of a 4x4.
regards
Len

Had mine checked by toyota and they say the noise is normal for the colorado d4d ,all i can say is after having a lexus for years it sounds like a tank . funny thing is both my batterys failed last week as well ..

Just to hijack this thread - my Hilux 3.0 D4D does this too, sounds like the big ends gone for the first 10 mins of driving but its apparently just a characteristic of the engine. Drive it harder (above 2500 revs) and the noise disappears. Use a thinner grade oil is supposed to help too.

Mine is a D4d has 900 miles on it and is the Noisiest diesel "when cold" that I have had, but silky smooth and quiet when warm, when I mentioned this at the dealers I was told "they all do that"

Update on this, the dealers listened to it again from cold and agreed this "isnt normal" so its booked in next week for the injectors replacing.... Dont believe them when they say they all do it!

Hiya JasXPear , you will have to keep us posted as to what happens. Hope the injectors cure it for you but don't get your hopes up too much!

To ginter1234,
Just came across your posting if allredy sorted Good Luck. From what i know of these engines it is a characteristic, it has no hydraulic tappets it is fitted with cam buckets with shims, shims vary in size to give correct clearance. Your exhaust valve clearance between shim & cam lobe can be up to 0.50mm. It may sound like a tiny clearance, but from cold until all parts are up to correct operating temperature makes all the difference. From cold that is a big clearance in relation to other vehicles. Thus the clattering noise.

To ginter1234, Beagh again just to point out shim & tappet system not fit & forget system. Not sure of your milage, but have a look through your service sheets Have your valve clearances been adjusted ever.

Dear Beagh1958,
I've not done anything with my engine yet as i've not been 100% sure what the exact problem is . This sounds as though it could be it, but why does it only do it at a certain rev range? My engine has done around 70,000 but I have no service history to check. Do you know how often these should be checked and what the clearence tolerences are? I assume the exhaust valves will be set to a greater clearence to the inlets? I have never worked on this type of valve gear before so am a little unsure as to what happens. Can you make your own shims to correct the clearences or do you need special ones, or is there some other way? Sorry for all the questions, I appreciate your help, and everyone elses who has bothered to post a reply. Thanks again, Paul.

To ginter1234, What year is your model, because reading through some of the postings i'm becoming confused. I cannot understand why an engine with hydraulic tappets would give valve clearances. Anyway come back with year & i'll have a look through my info.

Its a 2003 03 reg, cheers

To ginter1234, Just checked my info sheets & showing at 60,000mile service (cambelt change service also) valve clearances should be checked at added time & cost to service. Valve clearance from cold for Inlet is 0.20 to 0.30mm & exhaust valve clearance from cold is 0.35 to 0.45mm. Have just checked tool box in case i am imagining things & i have 2 tools to help with shim adjustment. Snap-on part nu YA8825 & other tool nu a bit rubbed out but think it is YA8825-1, so you could look at snap-on tool site aswell to confirm. So unless Toyota have made alteration from certain chassis nu onwards, something appears strange hear. You should have cambelt running to your exhaust camshaft pulley wheel & with rocker cover removed you would see gear at other end of exhaust camshaft running drive gear on end of inlet camshaft. Both sets of camshaft lobes pushing against cam buckets & shims. On know account what so ever try to fit your own made up shims, they are the size of a 2 pence piece but are very high precision made components working for years under extreme conditions. I live in the countryside & just about every farmer around here is running some form of Landcruiser, not brand new but well used in most cases because they are so reliable. So it is possible later models have hydraulic tappets?? I think a call to your local dealer should clear matter up. Hope this has not confused matters further.

Thanks for the info Beagh, I will look into this further when I change the cambelt next year. Will wait until the weather warms up a little first though!

hi all

a query from my side
my landcruiser is a lc5 d4d 2004
i started noticing a humming or grinding noise at high speeds like 70mph on the motorway,it appears even when my foot is not on the gas pedal.it is intermittent comes and goes at reg intervals,you can even feel that vibration on the floor,took it to local toyota garage,mechanic did a run agreed there is this noise and checked out the entire drivetrain but no cause found,told me it will go away on its own,this noise is driving me nuts.now i have noted the hum even in low speeds when coasting down a hill with gear lever in neutral.can anybody help please

Does anyone have experience in sorting the problem under warranty? Our LC5 2007 sounds dreadful till warm which is usually up to 5 miles.I have been told its injectors?
Cheers
Greg

There do seem to be stories around the place of 2007 landcruisers being very noisy when cold - it seems to be since the engine was upgraded to the 173 version.

From whatcar.com: "It has an enormously loud rattling noise from the engine when cold (sounding like someone rattling a spoon inside a tin can and causing passengers to utter alarmed and unrepeatable expletives). The car was off the road for one month waiting for new injectors. "

and

"New injectors were fitted after the car was in the garage for 1 month. Three weeks later it was worse than before. The car was booked in for two weeks later, but the morning the car was due in, the service manager told me the mechanic who needed to do it was on holiday for two weeks. "

Bearing of one of your wheels...
Does the Humm noise goes away when u turn to one side?

i done a wheel bearing 2weeks ago on a cruiser with the same simptoms

ihi paul i think it is a build up of carbon in your injectors. this may lead to engine damage if left unchecked as it will carbonise your oil.this may lead to engine failure.

Its only the injectors warming up. its nothing to worry about. try putting your foot down around 2000rpm from cold the knocking will go away. & when you back off it will come back. I have been told that having them chiped makes it qiuter from cold.

Thats interesting as I have the chipped Invincible model and mine is never noisey from cold

Mind you my car has done less than 5000 miles so I was wondering if the noise tends to start after a certain mileage

No, they still are "solid" buckets (no shims) as the buckets come in various thicknesses to give the correct valve clearances so oil pressure or quality have no direct bearing on noise from them (unless they are running dry in which case get ready for a BIG bill).
I have changed loads of injectors and have yet to have one come back with the same or worse noises yet. Just make sure when they are changed the dealer does re-code them as it is most important. This involves calibrating them using the handheld computer (IT2) and entering the 30 digit calibration code stamped on the top of the new injectors into the ECU. After all four have been calibrated the batteries need to be disconnected for a few mins so the ECU "learns" the new values. Basically this ensures the new injectors are delivering the optimum amount of fuel (fuel trimming) so they dont over/under fuel which causes the knocking in the first place.

MM

I have a 54plate lc5 d4d with the same noise. toyota had it back and fitted new injectors. (I get rattly injector noise when cold) but this noise is different!

Took it to diesel specialist recently who thought it was probably something to do with the egr valve.

I dont know if any of the following symptoms match yours...
-Poor fuel economy
-Ticking EGR with ignition on but engine stopped
-No smoke from tailpipe even under heavy load
-Occasional stalling about 30 seconds after cold start but only while driving. (Then wont restart for 30 seconds)
-Noise is present at 2k revs when cold but drops down to 1500 revs when fully warm.

I am thinking of blanking off egr but also removing cat from exhaust to see what that does.

Does anyone know of an EGR blanking plate for 3.0 d4d engine??

Thanks

adam

Is there a Toyot-approved chip? I always thought that chipping invalidated the warranty.