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There is a lacl of power as car moves up through the gears, cant hear turbo "whistle" but there is a rush of air sound on initial acceleration. Car runs happily at higher speed on straight road - i.e 50/60 mph ps . where is the air filter located as we thought this might be a good place to start.
Edited by Dynamic Dave on 09/03/2008 at 18:12
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not wanting to be funny, but if you can't find the air filter then taking it to a garage is probably the best place to start.
Any other symptoms? warning lights? drop in economy? smoke? has it had a new maf at all?
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There are no warning lights, no has not had new maf, has been doing it for about 4 days, so dont know about drop in economy yet, smoke when accerlate hard - but it tends to do this anyway - even though it is regularly serviced at the garage.
Havee been reading simliar questions and answers on this site & thought best place to start was to check air filter before expensive garage diagnostics
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Paul
If there's a "rush of air sound;" then checking the turbo hoses for splits and for the very common rusted hoseclips would be a good start - it's always the one that you can't see that breaks. Oil mist is often the give-away.
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Paul, go carefully with this engine. The symptoms you describe sound like a boost pipe which has come adrift and if you feel competent to take off the engine cover (3 bungs and 10 AF nuts) you can check for yourself - or at least have a good look.
Start at the turbocharger compressor (aluminium side) and look for the hose which connects it to the metal cross tube which runs under the radiator. Check each end of this hose. The other end of the cross tube connects to the intercooler with another hose (this usually drips a bit of oil). Check each end of this hose. From the intercooler, another hose connects to a plastic tube which runs under the coolant header tank. Check this. Finally, near the engine oil filler cap, there is a hose connecting this plastic tube to the engine intake.
All of these hose junctions are sealed with 'O' rings and the fittings push together. They are held together with a spring clip - and this is usually the problem. All of these joints must be absolutely firm and tight, otherwise boost pressure will be lost. The exception is the lower intercooler joint which will leak a bit of oil. This is normal.
Have a really good look and give the pipe joints a gentle tug. Don't fiddle, and don't disturb anything.
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(Another photofinish with Screwloose!)
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Thanks,i did have the engine cover off earlier today just to see if there was anthing obvious befor i ran it round the block. I had the engine running on the drive and even reving the rush of air was'nt apparant untill road tested when the engine was under load,i guessed then it might be an air intake problem,i'll have a closer inspection in daylight thanks for your direction.
great help thanks paul
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