npotts Posted March 22, 2006 Share Posted March 22, 2006 Its definately not the plugs Wez. I had mine changed to NGK race spec ones at the weekend, which made no difference to the vibrating. Sounds like it could be the tensioner.... Nick what different effects would this have if you were in Park or Neutral? and mine only seems to be at around 700 RPM, any lower it's fine - anyone else have this same pattern? i'm still thinking plugs at the moment Quote Link to comment Share on other sites More sharing options...
dilocruzy Posted March 22, 2006 Share Posted March 22, 2006 Funny thing is I got really fed up a very annoying vibration coming from the dash area, only to find out after many dedicated listening minutes that the noise was coming from the rear view mirror!!! it had come a bit loose and as the car went through a particular rpm range it sparked this anoying vibration. Really cheap fix! Quote Link to comment Share on other sites More sharing options...
wez_p Posted March 22, 2006 Share Posted March 22, 2006 It only took me 30mins to change whilst replacing the auxilary belt and it cost about £85 from CJ's Toyota contact (can't remember the guys name). i have no idea what or where it is though so unless i had fool proof instructions it's a job for the mechanic Its definately not the plugs Wez. I had mine changed to NGK race spec ones at the weekend, which made no difference to the vibrating. Sounds like it could be the tensioner.... Nick cheers for the update Nick, i'm going to try and get in touch with the mechanic this week or next to discuss the tensioner, along with getting the autobox & diff oil changed (have you done these?) Funny thing is I got really fed up a very annoying vibration coming from the dash area, only to find out after many dedicated listening minutes that the noise was coming from the rear view mirror!!! it had come a bit loose and as the car went through a particular rpm range it sparked this anoying vibration. Really cheap fix! i wish mine was that easy! i've had the dash off to see if i can see anything behind etc, changed the bumper, removed the front reinforcement bar! it's definitely something connected to the engine in some way, imo Quote Link to comment Share on other sites More sharing options...
npotts Posted March 22, 2006 Share Posted March 22, 2006 Ive not had my autobox or diff oil changed since I have owned the car Wez. Like you, my vibration seems to come from the engine bay somewhere. My car is going in for a cambelt change sometime next week, so I will ask them about the tensioner as well. If you hear anything in the mean time mate, then I would be interested in some news.... Cheers Nick Quote Link to comment Share on other sites More sharing options...
TRD3000GT Posted March 22, 2006 Share Posted March 22, 2006 Engine or gearbox mounts? Quote Link to comment Share on other sites More sharing options...
wez_p Posted March 22, 2006 Share Posted March 22, 2006 Engine or gearbox mounts? had those checked by CW & Toyota Quote Link to comment Share on other sites More sharing options...
brassbones Posted March 22, 2006 Share Posted March 22, 2006 Digsy I guess your right about the alternator load. How about the CATs? The crackling noise is much louder after a decent burn in this one than any of my previous ones, and if I've really cained it there a mild fuel whiff too! Maybe the front CAT is f*cked. A front decat might be a good idea anyway? Quote Link to comment Share on other sites More sharing options...
wez_p Posted March 23, 2006 Share Posted March 23, 2006 Digsy I guess your right about the alternator load. How about the CATs? The crackling noise is much louder after a decent burn in this one than any of my previous ones, and if I've really cained it there a mild fuel whiff too! Maybe the front CAT is f*cked. A front decat might be a good idea anyway? i don't have any cats Quote Link to comment Share on other sites More sharing options...
npotts Posted March 23, 2006 Share Posted March 23, 2006 me either Quote Link to comment Share on other sites More sharing options...
wez_p Posted April 24, 2006 Share Posted April 24, 2006 Update: had the car in with the mechanic this weekend. Had the autobox & diff oil changed and the drive belt tensioner checked. Had the car up on the ramp alongside another J spec & the only difference that could be found was the engine mounts appeared to be sat on their arse in comparison to the other car. So, a new set of mounts is about £50 plus vat per mount & then the labour to fit them which is apparently a ballache. i'm due a service so a new set of plugs are due anyway & should eliminate another thing. Quote Link to comment Share on other sites More sharing options...
Lez Posted September 22, 2006 Share Posted September 22, 2006 Hi, I have a '98 TT Auto (Stock) and currently experiencing some vibration problems when the car idles. This started happening after the battery after not using the car enough. There is no vibration during normal driving or when it is shifted on neutral, but only occurs when the car is on 'drive' and not moving, or when I apply the brakes and approaching idle (i.e. at a stop light). It doesn't seem to make it difference whether the A/C is on or not. I brought it to a Toyota service center and after testing they say it is due to the battery dying and the idle needs to re-adjust itself. They say that it will be adjusted properly and the vibration will be gone after driving it more particularly under highway conditions when higher shifts happen. The vibration seems to get better after immediately after I drive it at high speeds, but is very noticeable and annoying (constant vibration at a very low hum) especially during in-city driving. I've had this car since it was new so I knew the vibration doesn't feel right. What could the problem possibly be? The battery has died several times before but this never occurred. I thought it might be an engine mount problem, but the technician says it isn't. Thanks for your help and insights in advance. Sorry to resurrect this thread but I have the exact same symptoms, the dealer I got the car from let the battery go flat, did anyone identify a solution? What was the cause for you guys;- the tensioner, mounts, IACV, plugs, ….? Quote Link to comment Share on other sites More sharing options...
wez_p Posted September 22, 2006 Share Posted September 22, 2006 Sorry to resurrect this thread but I have the exact same symptoms, the dealer I got the car from let the battery go flat, did anyone identify a solution? What was the cause for you guys;- the tensioner, mounts, IACV, plugs, ….? funny this should get resurrected, i replaced my plugs a couple of weeks ago at a service & have put up with it till now it's booked in with HyperSR.com next week for them to diagnose & hopefully sort once & for all Quote Link to comment Share on other sites More sharing options...
Lez Posted September 22, 2006 Share Posted September 22, 2006 Please let me know your results wez I haven't got time to investigate this weekend and I've got over 600 miles travelling next week. I think an ECU reset would be prudent before I leave. Quote Link to comment Share on other sites More sharing options...
brassbones Posted October 1, 2006 Share Posted October 1, 2006 Wez, let us know what they say. I'm getting mighty p*ssed off with it. I now drop it in neutral everytime I come to a stop. Even the vib in neutral is bad!! Quote Link to comment Share on other sites More sharing options...
Lez Posted October 2, 2006 Share Posted October 2, 2006 Wez, let us know what they say. I'm getting mighty p*ssed off with it. I now drop it in neutral everytime I come to a stop. Even the vib in neutral is bad!! I've sent wez a PM to reply to us. From cold start; idle = 1500 drops to 650 when warm = normal, but if driven when cold it feels like fuel or air starvation. The idle vib resonates throughout the whole car, even in neutral! Spent all weekend trying to sus it, heres what I've done; ECU reset Super Unleaded ECU reset New Spark Plugs Injector cleaning fluid in a full tank No fault codes Injector screwdriver to ear test - all clicking Disconnected coil pack in turn - all plugs firing ICAV VSV tested - working ICV removed - no soot, its clean No split pipes found ANYONE GOT A CLUE WHERE TO LOOK NEXT? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 2, 2006 Share Posted October 2, 2006 Do VVti's have the same engine mounting part numbers as the earlier TT's?? Quote Link to comment Share on other sites More sharing options...
wez_p Posted October 2, 2006 Share Posted October 2, 2006 my car is in with HyperSR at the moment, i left it with them on Saturday I'm hoping to receive a call in the next couple of days with the diagnosis. I'm also hoping it isn't something too expensive Give me another week & i should have it back (or at least diagnosed) by then - Chris @ HyperSR's first reaction was that it was a possible engine mount, but that was literally from just sitting in the drivers seat & showing him the problem i will keep you posted with any progress... Quote Link to comment Share on other sites More sharing options...
Lez Posted October 2, 2006 Share Posted October 2, 2006 Thanks for posting wez. Umm, I thought about engine mounts, but the vib is worse when in gear, which suggests that the engine's vibration is being transfered through the gearbox mounts and therefore making it worse. Still looking, ICV stepper motor tests OK Quote Link to comment Share on other sites More sharing options...
wez_p Posted October 2, 2006 Share Posted October 2, 2006 the vib is worse when in gear, which suggests that the engine's vibration is being transfered through the gearbox mounts and therefore making it worse mine also is at it's worst in gear (Drive, 1 or 2 on the autobox) hence why i regularly drop it into Neutral at junctions etc it seems to have got worse/happens all the time, over time, as opposed to being a little less frequent to start with something i've just thought of, which i never tried before handing it over to HyperSR is whether it does the same when in Reverse (whether that would make a difference anyway) another i was told to check was the idle tensioner setup, since it only seems to be noticeable when it's at warm idle Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 2, 2006 Share Posted October 2, 2006 Is it a stock exhaust system on it? Quote Link to comment Share on other sites More sharing options...
Lez Posted October 3, 2006 Share Posted October 3, 2006 Is it a stock exhaust system on it? Yes, mine is! on a stock UK TT Why? Quote Link to comment Share on other sites More sharing options...
wez_p Posted October 3, 2006 Share Posted October 3, 2006 Is it a stock exhaust system on it? are you asking me Chris? if so, then no it was a cat back stainless, then decatted (by your good self - at the time you also felt the vibration & thought the engine mounts looked ok at a brief glance, but it has got more regular & worse since then) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 3, 2006 Share Posted October 3, 2006 are you asking me Chris? if so, then no it was a cat back stainless, then decatted (by your good self - at the time you also felt the vibration & thought the engine mounts looked ok at a brief glance, but it has got more regular & worse since then) Engine mounts are the most likely candidate, but I have seen some very stiff mounts on aftermarket systems transmit engine vibration to the bodyshell. Quote Link to comment Share on other sites More sharing options...
wez_p Posted October 3, 2006 Share Posted October 3, 2006 Engine mounts are the most likely candidate, but I have seen some very stiff mounts on aftermarket systems transmit engine vibration to the bodyshell. cheers Chris, are you referring to 'very stiff' engine mounts? as in it may not be a good idea to upgrade to the stiffer TRD mounts if it does turn out to be the mounts, since i've got an aftermarket exhaust on there? i don't anticipate going much further than an uprated intercooler with mine from BPU so didn't really see much point in uprating the mounts anyway, but HyperSR had mentioned them as a possible worthwhile upgrade if they were getting replaced Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted October 3, 2006 Share Posted October 3, 2006 Stock mounts are the way to go if you want a vibration free set up. Quote Link to comment Share on other sites More sharing options...
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