turbo replaced no power
Discussion
hi guys my turbo blew on my vauxhall astra h 1.7cdti turbo got replaced and i got a new turbo oil feed pipe for it the oil has been changed and the oil filter also has been changed the car has no boost when you press the gas pedal it struggles to go pass 2k rpm any idea what it could be?
As a first step, check the air pipes to and from the turbo have actually been connected properly!
I had the spark plugs done on my old Vectra at a Vauxhall garage, as it involved removing the inlet manifold. I drove around 15 miles, then had to enter a fast A-road so put my foot down. There was no power and the car went into limp home mode (so wouldn't rev or change out of 6th gear). Found somewhere safe to stop, lifted the bonnet and found the pipe from the turbo to the manifold had been refitted without tightening the jubilee. Sorted that and it was fine again.
I had the spark plugs done on my old Vectra at a Vauxhall garage, as it involved removing the inlet manifold. I drove around 15 miles, then had to enter a fast A-road so put my foot down. There was no power and the car went into limp home mode (so wouldn't rev or change out of 6th gear). Found somewhere safe to stop, lifted the bonnet and found the pipe from the turbo to the manifold had been refitted without tightening the jubilee. Sorted that and it was fine again.
MrPetrolHead said:
Could it be the maf sensor? I dont think the mechanic looked into it yet.
it will most likely be something the mechanic has done, or not done.But really, it shouldnt be difficult for anyone working at the car to diagnose. Anything here is just throwing out guesses as we cannot see what they have, or have not done. Nor any codes it has thrown up etc etc etc
Thesprucegoose said:
You need a boost gauge of if the OBD2 can show it get a reader. No boost could be a disconnected pipe etc. Review engine can you hear turbo spooning, that is a start.
nah obd2 dont show nothing my mechanic even connected to his laptop he has a special software nothing shows upstevieturbo said:
it will most likely be something the mechanic has done, or not done.
But really, it shouldnt be difficult for anyone working at the car to diagnose. Anything here is just throwing out guesses as we cannot see what they have, or have not done. Nor any codes it has thrown up etc etc etc
his been my dads mechanic for 24+ years i trust him but his getting old now i am kind of concerned of his work now But really, it shouldnt be difficult for anyone working at the car to diagnose. Anything here is just throwing out guesses as we cannot see what they have, or have not done. Nor any codes it has thrown up etc etc etc
MrPetrolHead said:
Could it be the maf sensor? I dont think the mechanic looked into it yet.
If you disconnect the cable from the maf sensor, the ecu will use a default (safe) map. If the car runs better with the maf disconnected, the mad needs changing.A couple of years back I struggled with a friend's car where all the error codes registered suggested a turbo problem. Changing the maf sorted the problem. Shame my mate binned it a few weeks later.....
MrPetrolHead said:
idk bro thats what he said it says nothing is showing up and on the dashboard their is no warning lights
"nothing is showing up" is an utterly meaningless term.They either have communications with live data and codes or they do not. Both will speak volumes.
And no warning lights implies nothing on your dash works ? Which would again be rather unlikely. Relevant lights should illuminate on key on, and if no faults recorded will extinguish once the engine runs. Which again speaks volumes.
Also your description of the fault....ie no boost.....again any idiot with a cheap obd scanner would be able to look into that in more detail as to whether there is actually no boost at all, or just low boost, or whether the ecu is attempting to increase boost via the boost control solenoid etc etc.
And any idiot mechanic could spend 2 seconds t check to see if there is any vacuum to the w/g to even operate it, or manually test it himself.
None of this is rocket science. Find a mechanic with even just a handful of brain cells, as it seems the current guy is far out of his depth for this simple task.
And do it soon...as threads like these tend to go the way of the brainless idiot starting a spending spree throwing all sorts of parts at the car, f
king even more things up, all at the owners expense.Some faults may not always be easy....but whoever is working at this seems to be taking the piss as they cannot even manage very simple diagnostic checks.
Be very very cautious of them !
Edited by stevieturbo on Tuesday 26th June 23:02
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