Boost / Turbo issue when accelerating

Pathfinder100 · 2024-08-31 19:21:58

Symptoms: Loss of power while accelerating, hissing noise at the back of the engine at mid revs.

So I was almost home last night thankfully, driving back from hols. Going up a hill and lost all turbo related power. Had to drop from fifth to third. I assumed the boost hose on the front had gone, but the sound wasn't coming from there and there wasn't a smog cloud coming out of the exhaust. So had it up on the ramps this morning and there is a sound of air/gases escaping, a hissing type sound, round the back of the engine, at the top. Sounds like a hose has gone. Also there is a load of oil everywhere around the back of the engine. Any ideas? I have no codes, but would assume the usual suspects would come up like P0243 (that are generally unhelpful).

If I had to make a guess then I would say a hose running from the turbo to somewhere else, on the back of the engine has either split or come off. The hissing noise occurs at mid level revs, but isn't heard at low or idle revs. Tomorrow i am going to get under again and this time use a decent spotlight and see if i can spot the offending hose. But if anyone can point me towards anything, that would be useful.

Thanks.

[edit]A few videos on YT suggest the Boost Control Solenoid would be a good place to start looking, does anyone know where it is on the 2.0HDi engine (and i'm guessing it will be in a real PITA place on the back of it)?

Last edited by Pathfinder100 (2024-08-31 19:28:12)

JohnDragonMan · 2024-09-01 01:22:38

looking here:

https://eper.fiatforum.com/en/Drawings/ … ubSubGroup

nice little diagram that should make things more easy to identify with smile

i would say its number 1 that has failed. however it could be anything high up on that part of the engine.. maybe 8. that little number 1 pipe is what i would have my money on though.

usually its the 2x L shaped bits of pipe going into the intercooler.

who knows maybe it will just be the pipe that has blown off because a clip has failed.

hope this helps

Last edited by JohnDragonMan (2024-09-01 01:31:59)

RegW · 2024-09-01 03:33:29

Having the 2.0 HDI lump too I'd be interested to know just in case.
As for the cause not sure, but had the larger intercooler pipe come off on my galaxy a couple of times
and that was very loud and sounded a bit like a bad exhaust leak with the typical loss of power
but fortunately on the Galaxy it was easy enough to access and rectify.

A hissing sound would make me suspect a smaller pipe, maybe one from the vac pump to actuator perhaps
or one in the manifold area, possibly a split/leak on the larger pipe work causing loss of pressure?
The snag is as you've already pointed out, is it's all stuffed between the engine and bulkhead
so good luck with that.
A torch and phone cam may help you take a peek.

Last edited by RegW (2024-09-01 03:39:54)

Pathfinder100 · 2024-09-01 06:26:54

Thanks John for the diagram. I will be going under later and see if I can find it.

As you said Reg, hard to access. I am considering letting the local specialist do this one. He did my timing belt. Specialises in these vans and for him I'm guessing it will be a fairly quick job. Also having a lift would simplify tasks. With ramps I can get under far enough to see behind the engine, but I think the pipe is somewhere high up. I also don't know where. I plan to get my dad to rev the engine while I look in the hope I can narrow down the exact one. Space wise it is tight, but not crazy from my quick look yesterday and from when i was doing the exhaust. So now i know from the diagram where those pipes are I think i can get to number 8 by following the pipework on the left side of the engine up or maybe from the top.

Last edited by Pathfinder100 (2024-09-01 06:29:46)

Pathfinder100 · 2024-09-05 02:18:23

I took it in to a local guy who specialises in Peugeot Vans (Steve Plain Peugeot, Sheffield). Same guy that did my timing belt and water pump. So turned out not to be a small pipe. Some big pipe that goes to the turbo and wasn't cheap. On John's diagram link I suspect it was pipe 2. He said he called the dealers first and they quoted him £350 for the pipe and he declined. I think in the end he got it from ebay, but he didn't really say, but it's most likely an OEM part that's on now. Total cost including labour and vat was £190. I had a quick look on ebay for that part number and it comes back as £76 for an OEM, then I suppose throw in some clips and you can call it £80.

But it's fixed and as a job was beyond my level. I'd have spent weeks trying to find it. He said the one that had gone was rubbing against the side of the engine and had snapped, hence the whooshing noise when i accelerated and it also fits in with the fact the boost has been activating later in the acceleration for the last 6-7 months, he reckoned it was leaking for a while before totally failing.

There is another possibility why it failed. i was on holiday recently and somehow lost half the wheel arch on the drivers side. Basically the plastic panel on the front of the arch, well I have no clue what happened to it and the inner panel was ripped under the engine. Best guess is I hit something, no idea what, maybe a rabbit, but I managed to patch the inner bit up with cable ties and the remaining parts of the front section, but it's another job that needs to be done. Upside is I found out where the power steering fluid is pissing out of, downside is I won't be fixing it because I need this van to be sold.

Last edited by Pathfinder100 (2024-09-05 02:24:09)

AlvyLad · 2024-09-05 06:19:27

Why (good mechanics) only happen (to everyone else) but me?

I swear, you are rubbing in deliberately big_smile

On a serious note, congrats, lucky you! cool

JohnDragonMan · 2024-09-05 08:27:22

yes pipe number 2 is a solid plastic pipe it can rub if its not been bolted in.. or lost its bolt. as the engine move in the bay it tugs on the intercooler and can damage that by cracking it.

at least its fixed!

Pathfinder100 · 2024-09-07 02:22:32

AlvyLad wrote:

Why (good mechanics) only happen (to everyone else) but me?
I swear, you are rubbing in deliberately
On a serious note, congrats, lucky you!

Thanks. I only found this guy while researching for the timing belt. He's not cheap, but he also knows his shit. For technical jobs, he's worth the money. I have another guy I've used for years, but say a timing belt change would take him several days. The other guy it took 2 hours and he knew the van, so no issues with the work. Swings and roundabouts. If you can find a guy who specialises in these vans, then use him for the tech jobs that you can't afford to fail. Timing belts, maybe gearboxes and clutches, possibly engine related things and/or maybe electrics. For basic stuff, find a general purpose mechanic. At least that's the way i see it. Any mechanic can swap an exhaust, change brake pads, etc. Not everyone can can swap a timing belt and water pump in two hours. Tailor the job to the mechanic. smile

But as John says, it's done.

This next week i need to clean up and touch up the van. Got some rust to clean up on the sills and wheel arches. Needs a thorough wash, especially the roof, but the rest is pretty good. I painted most of the underside when i bought it with hammerite and some anti rust spray stuff from toolstation. Never had any issues with corrosion on the MOT's. Then it goes up for sale. I need a bigger van, something big enough for me to drive to Norway and live in for a month. Something with a shower and toilet, a computer system, lots of power generation and storage, basically something that can stay off grid for a while. The Expert can't do that. So it's likely going to be a Ford Transit MWB/HR ie, L2H3 or maybe an L3H3. But not fully decided yet, but leaning towards the L2H3, maybe a 2012 or 2013 Euro 5.

OAT · 2024-09-07 13:12:59

Pathfinder100 wrote:

The Expert can't do that.

I assure you it can.

wink

Pathfinder100 · 2024-09-07 17:38:35

For some maybe. I am very tall, so my head actually hits the back door and my feet are against the front seats. I can't stand up in it and have to squat to use the toilet. It's basically not fit for purpose, for a guy that's over 6ft 3 tall. For someone in the 5-6ft range it would probably work. For me, not so much. I want a van i can stand up in, also something with a full size shower and a whole bunch of other things, including carrying my tools and a bike. The Expert makes a good stealth camper, but I feel like i'm sleeping in a coffin when i spend any real time in it. tongue

kenbw2 · 2024-09-07 20:30:21

Hey I'm gonna defend the Expert's honour by highlighting all the things it can do (while also skirting over the things I'm wilfully ignoring haha)

I'm 6'2" and fit nicely in the back. Lived and worked in mine for 5 years off grid - 260W of solar, a LFP battery, and an energy efficient laptop did me nicely. No need to toilet when you have a spade haha, I'd rather not have the smell anyway. Shower a little more tricky but I managed to set myself up a makeshift shower. All doable

But I acknowledge the compromises. Storage space is at a premium, but again you can make it work especially for just one person. Bike might be a challenge, maybe a bike rack on the back. And full size shower and standing up.... yea that's for outside.

That said, it feels like a tardis. I look at it in the vastness of the countryside and think how the hell would I live in that. But I did, and for 5 years it felt roomy and comfortable inside. I think it helps that I keep it light and bright inside, with furnishings that make it feel homely. And swivel seats. I couldn't do it without swivel seats.

It's all sacrifices, and it's got a lot of them. For me I like the fuel efficiency and it being like a car, but I can definitely see the draw to have more space if it's long term and you want to bring things with. Would be awesome to have all that space of a L3H3. Bet Casper can attest to that with his Convoy

Pathfinder100 · 2024-09-08 18:46:54

Yeah for me I need more space. Space for me and living, space to carry my work tools (all six of them), basically i need a home away from home with all the comforts of said home. I want to travel up to Norway next year, so will be operating in sub zero temperatures and I need more kit than I currently have for that journey and the ability to be 100% off grid for probably days at a time, so more water storage, fuel storage, etc. My van isn't insulated enough for such a trip, just for starters and I don't have enough space to add in the necessary insulation. But it's mainly just space to live in and mod cons for when the weather isn't so good and I have to spend say a couple of days not leaving the van. Also I want to pick up contracts elsewhere in the country for work and they would require me to work in the middle of nowhere a lot of the time, for days to weeks on end.

I should have said this van just doesn't meet the needs of me. Sweeping statements and all that. wink

kenbw2 · 2024-09-09 19:38:21

Haha don't worry I understood that. I'm just a little protective of the DispatchExpertScudo. There's nothing it can't do! tongue

But yea, I totally see the benefit of the bigger van. Blows my mind that you can walk through some vans

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#1 2024-08-31 19:21:58

Boost / Turbo issue when accelerating

#2 2024-09-01 01:22:38

Re: Boost / Turbo issue when accelerating

#3 2024-09-01 03:33:29

Re: Boost / Turbo issue when accelerating

#4 2024-09-01 06:26:54

Re: Boost / Turbo issue when accelerating

#5 2024-09-05 02:18:23

Re: Boost / Turbo issue when accelerating

#6 2024-09-05 06:19:27

Re: Boost / Turbo issue when accelerating

#7 2024-09-05 08:27:22

Re: Boost / Turbo issue when accelerating

#8 2024-09-07 02:22:32

Re: Boost / Turbo issue when accelerating

#9 2024-09-07 13:12:59

Re: Boost / Turbo issue when accelerating

#10 2024-09-07 17:38:35

Re: Boost / Turbo issue when accelerating

#11 2024-09-07 20:30:21

Re: Boost / Turbo issue when accelerating

#12 2024-09-08 18:46:54

Re: Boost / Turbo issue when accelerating

#13 2024-09-09 19:38:21

Re: Boost / Turbo issue when accelerating

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