Loss Of Power

[rasher001]

I have a 2001 1.9 tdi zetec (140,000 miles) regular service yet the car has no power one minute (55 - 60 mph is a struggle and 6th gear is not an option power and speed drop like a stone) yet next drive loads of power and could hit 110 if i wanted. A mechanic said the turbo is going yet quoted 1200 to replace it ( i love this car and don't want to scrap it please help) any suggestions will be gratefully appreciated.

[Lloyd Evans]

Seams expensive how much is the labour?

http://www.eurocarparts.com/ecp/c/Volkswagen_Sharan_1.9_2001/p/car-parts/engine-parts/turbos/turbocharger/?719441331&1&da159edde37f77b648d1cb68b4062d9f6806d456&000352

So people have successfully used a cleaning kit as well

[rasher001]

Claihe parts are 750 plus vat so labour 300 +

[bfc1001]

i would advise getting a vag com lead from ebay and scanning your car first . it can be a multitude of things causing your problems and its always best to find out the fault yourself before shelling out so much money . just seems a bit odd that he s condemmed the turbo so easily .

[alan_131]

Power that comes and goes is usually "limp mode". You'll get a lot better informed advice from the experts on here than from me but I'd want to check some other stuff before stumping up for a new turbo. It might really be clapped out but - Best bet is to search the forum (try LIMP or VNT or TURBO - many posts). There are other causes than the turbo but if your mechanic is pointing at the turbo... VNT is type of turbo and I think I read recently on the forum that it's fitted to all MK2 TDI variants.

 

It would be helpful to know what led your mechanic to conclude the turbo needed replacing. Mostly turbos go wrong one of two ways - bearings/seals worn out, maybe contact between turbine and casing, can be BIG smoke and damage - and gunging up. Garages used to replace gunged turbos, but many people have had success in cleaning them.

 

Often you experience it like this - you drive quite gently most of the time - and things seem fine. Inside the turbo there are control bits that move, but not so much when you drive gently. Also, exhaust passing thru is more likely to buildup carbon on turbo internals when driving gently. These bits that move get gunged up, then the turbo delivers more (or less) power than the engines control system expects, so it says - ah ha! problem here, reducing power to keep things safe. This usually happens when you have your foot down a bit - up a hill maybe. Car is gutless. You turn off the ignition, next time you drive the control system starts from scratch and you get full power until the cycle repeats.

 

When the turbo is gunged, it can sometimes be cleaned - either by taking it apart or with a chemical cleaner (search INNOTEC for example). I've read of a member who cleared the problem just by manually moving the actuator rod manually. Or it may not be gunged up turbo - other things cause this like split vacuum pipes and flaky control valves as well as lots of other stuff. Basically anything that means the control system is unsure if things are ok can put the car into limp mode if i've understood it correctly. Honestly, if you read the forum you'll learn a lot - just about all I know on this and Galaxys came from reading the forum.

 

For me, the vagcom advice from BFC1001 is spot on. You can get quite a lot of information by plugging into the car's diagnostics, and if you post the results the experts here have more to work on.

 

 

Good luck!

Edited May 12, 2012 by alan_131

[rasher001]

Thank you all for your advise im going to get a diagnostic on it and check the hose from the turbo and i will get back to ye all with more info. Again i appreciate it and thank you again.

[a18nkd]

just had a re-con turbo fitted to my mk1 galaxy and for a garrett 454083-0002 turbo from TURBO SOLUTIONS at darlington they quoted me

[lewie]

You def need to get a vagcom scan done before you start throwing money buying things u dont need.

I had a power loss issue on my Alhambra 1.9 tdi, thought it was the turbo but after scanning turned out to be the MAP not MAF sensor,

[bfc1001]

just make sure you get your old turbo back off the mechanic s . at least u can find out what a blown turbo looks like plus if it just needs a "clean" at least you ve got a spare sat in the garage.

[octo0072000]

just make sure you get your old turbo back off the mechanic s . at least u can find out what a blown turbo looks like plus if it just needs a "clean" at least you ve got a spare sat in the garage.

 

turbos are normally exchange units the europarts one has a

[a18nkd]

just make sure you get your old turbo back off the mechanic s . at least u can find out what a blown turbo looks like plus if it just needs a "clean" at least you ve got a spare sat in the garage.

 

turbos are normally exchange units the europarts one has a