306 HDi Problem

chris171280 · Post by **chris171280** » 13 May 2006, 08:46

My mate has a 306 2.0L HDi on a Y plate, its only done 17 000miles with fsh and hasn't been thrashed or raced (apart from the odd occasion i've borrowed it), She's only had it for about 6 months but before that it was her mothers from new. For the last few weeks its been a little smoky but has got a lot worse, power is way down and sometimes she struggles to pull away without stalling it. She's worried its going to cost a fortune to fix so i'm going to have a look at the weekend, a few people have suggested the Cat could need replacing but i know nothing about them, the problem seems a little extreme for it to be that. Other suggestions have been the Turbo, MAF, Injectors, Fuel pump over fueling.

I figure i'll start with the MAF, Is it the same as my PD Diesel? ie if I disconnect it will the car drive better without it if this is the problem?

Some of the things i've been told seem very unlikely for a car of this mileage so any help/idea's would be greatly appreciated.

Cheers People!

howiedean · Post by **howiedean** » 13 May 2006, 14:22

chris171280 wrote:My mate has a 306 2.0L HDi on a Y plate, its only done 17 000miles with fsh and hasn't been thrashed or raced (apart from the odd occasion i've borrowed it), She's only had it for about 6 months but before that it was her mothers from new. For the last few weeks its been a little smoky but has got a lot worse, power is way down and sometimes she struggles to pull away without stalling it. She's worried its going to cost a fortune to fix so i'm going to have a look at the weekend, a few people have suggested the Cat could need replacing but i know nothing about them, the problem seems a little extreme for it to be that. Other suggestions have been the Turbo, MAF, Injectors, Fuel pump over fueling.

I figure i'll start with the MAF, Is it the same as my PD Diesel? ie if I disconnect it will the car drive better without it if this is the problem?

Some of the things i've been told seem very unlikely for a car of this mileage so any help/idea's would be greatly appreciated.

Cheers People!

1st thing I'd start with is the fuel filter and air filter.

Regards

chris171280 · Post by **chris171280** » 13 May 2006, 16:18

Hi

Been and had a look today the filters are ok, when driving the car if i didn't know it was a turbo i wouldn't know something was wrong, i can hear the turbo spooling up just before 2000rpm but there is no power from it, so it looks like it might be the turbo, will a diagnostic check prove or disprove this or is there another way to tell?

Cheers.

AndersDK · Post by **AndersDK** » 13 May 2006, 16:46

Like you said "Some of the things i've been told seem very unlikely for a car of this mileage" - exactly what applies to the turbo. The turbo unit itself is extraordinary reliable.

Find a local diesel specialists garage near you - not a Peug dealer. Let them have a diagnosis. My guesstimate is that the injectors could be carbon fouled. Which is not overly expensive to correct.
It may even be cheaper than you buying parts swapping to try find the problem.

TomH · Post by **TomH** » 16 May 2006, 19:20

needs a good thrashing by the sounds of it

saxoqueen · Post by **saxoqueen** » 18 May 2006, 18:55

I may be wrong here but I have a 2001 306 HDi and it DOES NOT have a Turbo fitted! According to Pug they never fitted turbo's to these engines - the 90BHP version. The later 110BHP 307's had an intercooler fitted but seems was never an option on the 306. Why the heck PUG ever stopped the 306 still baffles me (and some of the guys at the local Pug dealership!)

PowerLee · Post by **PowerLee** » 18 May 2006, 20:07

The 306 HDI 90 BHP DOES have a turbo fitted.

saxoqueen · Post by **saxoqueen** » 18 May 2006, 20:24

As I own one of these, would you kindly tell me where it is? Cos Pug dealer can't find it !!

PowerLee · Post by **PowerLee** » 18 May 2006, 20:43

The turbo charger will be on or in the exhaust manifold.

The part numbers for the 3 different turbos that where fitted by Peugeot to the 306s DW10TD lump are 0375 E0, 0375 E5 & 0375 H7.

fastandfurryous · Post by **fastandfurryous** » 19 May 2006, 11:11

saxoqueen wrote:As I own one of these, would you kindly tell me where it is? Cos Pug dealer can't find it !!

Then your pug dealer is a complete and utter waste of time (what's new there?)

The 90BHP HDI engine has a turbo but no intercooler. The 110BHP has both a turbo and an intercooler.

saxoqueen · Post by **saxoqueen** » 19 May 2006, 11:21

Ok many thanks for clearing that one up. I've given up on the local Pug dealer after my daughter took her 206cc back 5 times for a leaking roof/door and it still leaked! Took it to another dealer and they sorted it out in a couple of hours!

Where in the rev range is the turbo set to kick in or is it there all the time?

fastandfurryous · Post by **fastandfurryous** » 19 May 2006, 11:28

saxoqueen wrote:Where in the rev range is the turbo set to kick in or is it there all the time?

To understand the answer to that, you need to understand how a turbo works. Whilst it is "there" all the time, it only provides pressurised air when there's sufficient energy available in the exhaust stream.

This is on the HDI 90 engine. On the HDI 110 the wastegate is controlled by the ECU, so the turbo can have a set rev range.... but again, only when the turbo is within it's operating RPM range already.

ACTIVE8 · Post by **ACTIVE8** » 19 May 2006, 12:39

saxoqueen wrote:As I own one of these, would you kindly tell me where it is? Cos Pug dealer can't find it !!

Well, so much for the main dealers expertise, and specialist knowledge.

LOL

batwad · Post by **batwad** » 22 May 2006, 08:32

saxoqueen wrote:Where in the rev range is the turbo set to kick in or is it there all the time?

On my 306 HDi you can feel the turbo from about 1300rpm, up to 3000rpm. It really gets going at 2000rpm, that seems to be the sweet spot.

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306 HDi Problem

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