Lift Won't Engage

[Mr_T_Sport]

It seems promising mate! Whatever is wrong with yours is deffinatley what was wrong with mine, It would be fantastic if he sorts it as i know how frustrating it is and it is also a big worry of mine that it might happen to me again on my new cts.

[KPARRIS-JONES]

Nice one, it's guess you feeling better now that you are finally getting some answers! ;)

[dailey87]

Update:

Car went into YVS today and the news isn't great....

Looks like the cause has been found and is an excessivly worn cam shaft due to the wrong grade of oil being used most likely :(

The Lift section of the shaft is worn down over cyl 4 so much that it is almost identical to the standard lift :/ The rocker shaft is also worn where the lift bolt fits and is loose aswell.

Looks like a cam kit and rocker shafts so it's not going to be particularly cheap.... but on the plus side it is going to be fixed :D

[farhanali89]

maybe a nice time to upgrade to a set of pipers??? out of curiousity what oil have you been using? Brand and also grade

[dailey87]

maybe a nice time to upgrade to a set of pipers??? out of curiousity what oil have you been using? Brand and also grade

I've owned this car for less than a month so i am yet to touch the oil.

5w-30 fully synth is what i would have used though, if i had owned it from new, and what i will use in the future. (please someone tell me if this is wrong btw lol)

How much are the piper kits? Any other mods needed to run them and will it still 'lift' or just run on high cam 24/7? sorry for the n00bishness here...

[johnmaher]

i use 10w 30 semi in my ts as reccommended by toyota stockport!

anyone else usin that???

[Theorist]

5w-30 semi.

[Mr_T_Sport]

Hi again. Sorry its not going to be the cheapest of jobs but im pleased for you that a cause has been found and im also pleased that you have found someone who knows what they are on about as my impression of Toyota techs is "if it doesnt show on the diagnostic machine then there is nothing wrong"! I use 5-30 fully synth by the way. Dont know what was used im my old TS before i had the same problem as you as i only had it 5 months before it went wrong.

[Mick24]

5W-30 fully synth here too - i never scrimp on the oil as its the "life blood" of the engine

Mick

[LAA69]

my impression of Toyota techs is "if it doesnt show on the diagnostic machine then there is nothing wrong"!

Couldn't agree more, my faith in T is in the gutter at the mo, infact its 6' below the gutter .....

Hope the Cams sort the car fella...

[dailey87]

A little update on the lift situation

Cams have not been changed just yet as they have been thoroughly checked and they aren't as worn as first thought. There's more wear than you would expect for the miles on the motor but they defiantly shouldn't be causing any running issues whatsoever.

So after some more investigations it's beginning to look like a fueling issue. Simon at YVS thinks it's fuel starvation caused by either a clogged/dying in tank fuel pump, a faulty fuel pressure regulator or even something as daft as a blocked fuel filter! It seems to be leaning out in the top end and hesitating/misfiring.

Some good news though, after 3 tankfuls of redex the symptoms have vastly improved so it's looking more and more like a sludged up fuel system. Lift is back, no stutters, no hesitation up until 7500rpm... not that i dare take it up to that point in case it damages the engine but it's good to know things are improving.

I'm taking it to motoscope in northallerton on wednesday to get it on the rollers and have the fueling checked under load. If it does turn out to be a fueling issue (which is very very likely) the whole system will be replaced.

I'll check back with the results

[dailey87]

Back from the rollers and still no answers

Lift engages at 6200rpm rises and then total drop off at ~7100rpm (max bhp 152@7049rpm), fueling is fine and still no codes on the ECU!

anyone? :(

[LAA69]

Get it into Mr T, the so called experts of their own product !!!!

[Norfolk n Chance]

The only problem with Mr T is the extortionate prices just for them to 'look' at it never mind fix it.

A few posts back you say you've only had it a month... where did you get it from and was there any warranty??

[LAA69]

The only problem with Mr T is the extortionate prices just for them to 'look' at it never mind fix it.

A few posts back you say you've only had it a month... where did you get it from and was there any warranty??

Agreed, but

sometimes you have to bite the bullet ..... Again im not their biggest fan now....

[dailey87]

Get it into Mr T, the so called experts of their own product !!!!

There are a few more things i can still do before i take it to them but it is looking more and more likely :(

If they say anything other than "new engine/head" i'll be stunned though

The only problem with Mr T is the extortionate prices just for them to 'look' at it never mind fix it.

A few posts back you say you've only had it a month... where did you get it from and was there any warranty??

Private sale i'm afraid....

[LAA69]

What about oil pump pressure ?

Lift is reliant on oil pressure .....

Not read all this thread if already tried .... ;)

[farhanali89]

if i was in your position dont waste the money, If it was electrical related like oil pressure signals you would have a cel.

if there is slight ware on the cam then replace them, if im honest its a hard one to diagnose and just the cost of diagnosing the problem really puts one out of pocket.

look for another engine, it could be something really simple thats going un noticed or it could be something even worse waiting to happen. Unfortunately i have read on a few of these cases....in one particular situation the individuals lift came back....btu its the wait for ti to come back and also will it ever come back.

my best word of advise is to phone toyota head office speak to them, Inform them of your issue explain that you just cannot seem to find the problem. Its times like his you want to get it to the dealer...let them find out the problem and then get it repaired by an independant specialist its going to cost but all these little trips to garages will add up. unfortunately no one knows why this happens i spoke to a knowledgable friend of mine and he goes he has no idea but has heard of the issue before but just wouldnt know why it happens.

my thoughts are still on the wear on the cam....even slight ware could cause your lift to stop, It could possibly be a bent valve that is going unnoticed....a single broken valve springs will not be that easy to find on these cars youll run on 3 cylinders alright but its just really hard to tell.

also just to add lift is operated by a rocker, the lift bolts keep the rocker arm rotating....now i know you changed the lift bolts but did the specialist see any signs on the rocker itself???

[LAA69]

I dont see how wear on a cam would cause Lift to drop out at 7100 rpm, wear would reduce the effect of Lift.

Lift dropping out has to be oil related seeing as the oil engages it.

Ok it could something associated with the oil Lift circuit like the Lift Valve (Cant remember proper name DOH !! but you know what im mean) But for Lift to drop out, Oil pressure has to be lost.....

I'd go to Mr T by now ......

[LAA69]

Ah, OCV i think, Oil Control Valve .......;)

[compressor mad]

iv have seen in ocv's in the past that tiny bits of metal swarf get in there and jam them up not allowing movement,just a thought. this really is a strange case id hate to have this car on my ramp right now.

i did read on the net that the earlier tsports oil pump suffered from breakdown resulting lose of pressure and then engine failure obviously,

back to an earlier point though you said that tester showed that lift was engaging???could it possibly be a vvti controller fault???or would this throw up a fault code?????

[Mr_T_Sport]

As i have said before i had the exact same problem and mr t didnt think there was anything wrong. I rang the Toyota help centre and he assured me that the technician that was dealing with me was one of the best in the country and that he knows his stuff. The tech was positive there was nothing wrong with my car and i would be wasting money if i carried on letting them look at it! To be fair he did seem to know the engine but he deffinatley wasnt familiar with the engines performance has he said it wasnt lacking power. It was and lift wasnt even engaging! He even had the cheek to say that i had got used to the power! Funny how i can feel lift engage every time on my new t sport! Mr T wont help you mate because they dont know how. Simple as that, they are just too reliant on diagnostic machines nowadays.

[farhanali89]

anything to do with sensors will throw a code, the ocv and vvt control valve would throw an engine light, oil pressure switch is ecu related it would throw an engine light. you could try a new ecu as there may be a fault but again you would get an engine light. i reckon it could be the cams.....phone monkey wrench racing in america tell them about your problem they should be able to narrow it down in terms of engine related parts. if they cannot give you a reason why the engine would do this then you can cancel out engine troubles and start looking into electrical components like sensors ecu etc. narrow down the problem.

i would say get in contact with them simply because they have stripped loads of 2zz-ge engines and could may have come across damage to some components which could cause your lift to fail.

[mistermanu]

Sound like the MAF is not working properly... did you try another one.? one that you're sure that work?

hope you'll find what is going on..

[mistermanu]

anything to do with sensors will throw a code, the ocv and vvt control valve would throw an engine light, oil pressure switch is ecu related it would throw an engine light. you could try a new ecu as there may be a fault but again you would get an engine light. i reckon it could be the cams.....phone monkey wrench racing in america tell them about your problem they should be able to narrow it down in terms of engine related parts. if they cannot give you a reason why the engine would do this then you can cancel out engine troubles and start looking into electrical components like sensors ecu etc. narrow down the problem.

i would say get in contact with them simply because they have stripped loads of 2zz-ge engines and could may have come across damage to some components which could cause your lift to fail.

or may be the cam that have move ... note in the proper place.. or maybe the com sprockets and chain

look at this file :

TSB_liftbolts.pdf