Help! Power & acceleration dropped

My problem was the cruise control. Accidentally setting a limitation instead of putting the wipers on or something similar but I shouldn’t be allowed out on my own as not many people get stuck under trees or are permanently lost
 
You've got a sticking throttle body on the air intake, the unit needs the carbon build up removed from around the butterfly flange, throttle body located down the front of the engine. Difficut to get at you'll need to remove the front panels and if I remember correctly you loosen the radiator for access. Take unit off clean, test, put back or acquire a new throttle body (not cheap)
 
Hey Tezza,
Brilliant Post, Thank you so much on the chassis plate it says about the HP of eng & it’s -
7E655623-C0D8-4D2F-8F73-14FE0B6185AC.jpeg

The middle one of the 3 Possibles you list
 
Nesting Zombie said:
Do you know what, I TOTALLY understand exactly what you mean, And TBH it was the first thing I checked Just in case. But sadly NO I haven’t.
& the Mats I’ve fitted have been down a cpl of Months, The Lack of Power has only been a day or so.
So I’m guessing it’s a Cable or Loose connection that the Garage Guys Have disturb during the work, But I’m hoping that the Diagnostic thingy can tell me if that’s the case & if so, which one 🤷🏻‍♂️
Will definitely have a look at the Pump lever though 👍
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🤞
 
Hi NZ,
suspect you are within travelling distance of the original garage so just to support some of the advice you have been given so far my recommendation would be - get it back to the garage who did the original service/MOT. They should take responsibility.

Faults
I agree with Tezza also - I would not suspect Cambelt alignment.
I personally have never locked an engine to do a cambelt - just make markings on old belt and pulleys before replacing new one. NOt everyone will agree with my method but have never failed me yet over the years and different vehicles done.

To have lost power as you describe suggests a connector is off or a turbo pipe disconnected. - do you hear a sucking type noise when engine is running?
I have a Peugeot Van that has a Lamda sensor / MAF sensor issue that I have yet to solve but when MAF connected the engine hunts at tickover and lacks power. Once MAF disconnected the engine thrives and pulls like a train - with improved MPG also.

Here are some recent stories

STORY #1a
From experience of only yesterday with Bro-in-Law 07 Toyota Avensis - with pipe disconnected from Rocker cover to the air intake no engine power.
He had only changed the fuel filter and so removed the air intake pipes to gain access. We wanted to bleed fuel pump so started engine and left air intake pipes off.
No immediate acceleration, slowly the turbo picked up and engine power was poor.
As soon as rocker cover return pipe connected the turbo ran up as normal (engine is fuming so internal pressure is high at rocker cover - high mileage car).
STORY #1b
In bleeding pump we spilt diesel onto the throttle control lead (2 wires) to the fuel pump - car had no throttle. We only changed this last week to try and cure poor starting in frosty cold weather.
Found that one wire was exposed at the plug thus diesel created a shorting/resistance path - after cleaning and drying of the connection throttle returned.

STORY #2
We have another avensis used to glean spares for the first above - original owner had similar experience to you but not quite the same - car was losing power but also lumpy/stuttering, he got it serviced, also paid over £500 for repair (seems they only changed an injector and cleaned the EGR valve). He drove it 3 miles and engine would not produce power, so back it went and in a dispute with garage left the car with them. After 6 months we got the car for spares and are stripping the engine down, only head to come off to see condition of pistons and headgasket.
In doing the stripping down found loads of soot on the air manifold intake and discovered loads of soot on the air intake of the turbo also. exhaust seems very clogged - still investigating.
Fuel pump and filter put on above Avensis to confirm working - All OK.

STORY #3 (Honest - only last week)
Niece bought an 08 Galaxy last year to support growing family. Apparently at purchase the car had a power issue but she bought it anyway. It worked with some issues for a year until Thursday previous week. No real power and a funny noise from engine. Her dad suspected a turbo issue and immediately went off to see a turbo specialist in Dundalk whom he had used on a previous occassion. They had a quick inspection and asked for car to be returned next day so they could get more time.
Found that a turbo pipe has split - had to wait a day for part to be delivered - fitted and cured for less than a £100.
 
I HAVE actually & can’t see anything obvious, But I’ve Poked, Prodded, Tapped, & Squeezed what connections I could find, Looked for any Loose or unconnected Pipes as this thread has suggested but,🤷🏻‍♂️ Nothing obvious.
 
As @Stanski said you can change a cambelt without locking pins and if you are only changing the odd one certainly not worth buying but all garages will have them, drill bits of the right size will lock a pulley, marking the cam belt is also useful but it is easier with the right kit, certainly better than knackering a customers engine.
Lots of interesting and knowledgeable comments and advice any one of them could be right, my thought is that it was OK when it went in for the service so it is something that they have either done wrong or they have fitted a faulty service part (it does happen but not so much these days)


How are you both doing Stan?,
 
mariesnowgoose said:
OK, so not everyone reads all the threads, and one of our full time members (NZ) is having a terrible time with their van.

He's just paid a fortune - and I mean a fortune! - for a massive service, MOT etc.

However, since he's travelled away from the garage to his next park up, this now happens:-

"BUT NOW
Boxy is sulking I think, The Power & Acceleration is absolutely terrible, it’s like Limp mode without the Engine check light on 😭😭
40mph no hill power"

Any of you mechanically-minded bods out there got an idea where to start with getting to the bottom of the problem?

Thanks!
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We had a loss of power and found the turbo air pipe was off. Hope you get it fixed foc
 
Was the van serviced because this problem existed? We had a similar problem on our van. When pulling away the engine was flat, no power. after a lot of investigation it was found that the two chambers in the inlet manifold had corroded through. I had this happen on a car a long time before and it took the garage a time to find that too.
 
patsyanne said:
Was the van serviced because this problem existed? We had a similar problem on our van. When pulling away the engine was flat, no power. after a lot of investigation it was found that the two chambers in the inlet manifold had corroded through. I had this happen on a car a long time before and it took the garage a time to find that too.
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No, Patsy, good thinking, but the engine was pulling fine before it went in for its service, so this looks like something the garage has possibly done during the service?
 
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