After many years faithful service she seems to have lost her appetite for boost. Drives fine, accelerates OK but not proper hard and the boost guage doesnt rise past zero.

 

I thought maybe a boost hose had come loose but having now checked them I can find nothing wrong so far. Engine sounds fine and ticks over sweetly.

 

If I floor it then stop and take a look under the bonnet there is a slight burning rubber smell and it aint the wheel spin!

 

I have a horrible suspicion the drivers side turbo might have seized. No warning, no noises, no smoke.

 

If I take one boost hose to plenum off at a time it will start and run. I can get a puff of boost out of the passenger side pipe when the throttle is blipped but nothing from the drivers side. I can hear at least one turbo working when I floor it.

 

Any ideas appreciated. It was fine last week too.

Suppose the only way to be sure would be to take off the actual turbo hose

and see if they spin?-PITA to do tho'!

i had the same happen and it was an intercooler pipe had come off.

Think the coolers are prone for splitting with age too................

I had this recently happen to me too the boost gauge failed to move from zero! It turned out that the pipe running from the gauge to the solenoid had touched the exhaust manifold and melted onto it! I couldnt see it at first and because it was stuck to the exhaust after shut down! I know youve said you checked your pipes but check again it took me and 2 other mechanics to find a relativly obvious leak!

Viagra if it has gone limp?

Anyone know if the waste gate can jam open? Would that lead to no boost? Any ideas about the burning rubber smell?

Anyone actually seized one?

Anyone actually seized one?

A wastegate?

Thank god it aint just me! Having gone through all the posts it seems this is a common problem? I had this problem a month ago, took the car to a tuning specialist who hooked the car up to his computor, pressed a few buttons then hey presto the boost was back, had the car rolling road tested, and was kicking out about 8-9psi, i asked what he done, he just re set it back to factory settings, all was good, untill it happend again the other day, no more boost again. ffs. Now thinking something more serious, panic setting in, but having read your post has put my mind at ease a little. Maybe something amiss with the ECU? Or possibly the fault lies within the diagnoses the other members have surgested, it would be interesting to know if and how you solve your problem, maybe its not as serious as im thinking. Good luck.

Dont think this has anything to do with the ecu. Either my O/S turbo has siezed without any warning or the waste gate is jammed wide open or a boost side hose is wide open. So far I dont know which. Gona take a look under first chance I get. But thanks all the same for the tips

i've got the same problem like you WillieO,please let me know if you find out something

Stripped off some of the boost pipes and proved there are no boost leaks such as burst intercooler or pipes. The drivers side turbo is doing zilch. If I blip the throttles with the pipe off that side it seems to actually suck a little when it should blow. I cant see anything wrong with the waste gate linkage. So looks like a seized turbo. Tried passing a listening tube down the pipe but could only hear what might be the turbo tuning slowly and making unhealthy noises.

 

Next action is to consider engine out or take just this turbo off the car with engine in situ.

 

Engine still sounds sweet and drives well but not tunnel vision fast. When I do try to accelerate fast the exhaust side of the suspect turbo gets very hot and seems to smell shall we say hot.

 

I guess its gona be off the road a while till this challenge is taken.

 

cbr, which side went on yours?

pass side.....got to go now..:)

I dont think you can remove Turbos in situ mate...