Help! Power & acceleration dropped

[mariesnowgoose]

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!

 

[RoaminRog]

Get it back to the garage Paul, maybe they’ve left something unplugged.

 

[izwozral]

EGR valve issue?

 

[mariesnowgoose]

My own (non-mechanical!) thoughts are fuel starvation, but how and where?

 

[2cv]

Could be lots of different causes, but a faulty MAF sensor would apparently give similar symptoms. Presumably the garage that recently carried out lots of work will sort this out.

 

[izwozral]

My Saab had similar problems, turned out the EGR valve needed cleaning, it was totally coked up.

If EGR valve:
Boxy goes into limp mode then dies and if it fires up again there will be a huge amount of black smoke from the exhaust, it will run for a while then the same thing will happen after a few miles.

As Bill says, it could be anything. First call is the garage.

 

[Nesting Zombie]

Yeah I’m going to get the lads that are doing the Tracking on Boxy Monday to see if they can plug in & see if there’s a fault code if they have the kit, if not, it’s BACK to the Original Garage for them to have a peek.
I might as well ask If anyone wants any money to fix their vehicles as well, in for a penny in for a pound

 

[st3v3]

Pipe off the turbo?

But yea, back to the garage

 

[RichardHelen262]

Check turbo pipes for any splits, also check the air filter box depending on year of motorhome it will most likely have a sensor that measures the air flow, make sure they have plugged the wires back on, as they would have removed it when changing filters

 

[Bigshug]

Maybe the timing belt has been fitted slightly out of position

 

[Nesting Zombie]

Maybe the timing belt has been fitted slightly out of position

Hmmmm
Yeah, I HAVE had the timing belt done

 

[Red Dwarf]

Could be any number of things. As mentioned above, split turbo pipe or maf sensor would be my favourites. A loose wire on a sensor?
Getting it back to the garage is the priority. I really hope it turns out to be a five minute fix and that you’re laying rubber up the road in no time!

 

[bartman]

I think having paid that much you should get it straight back to the original garage. I'm just thinking that if they know another outfit has tinkered with it they might use that as a get-out.

 

[mickymost]

Hmmmm
Yeah, I HAVE had the timing belt done

Sounds like this to me

 

[Nesting Zombie]

I think having paid that much you should get it straight back to the original garage. I'm just thinking that if they know another outfit has tinkered with it they might use that as a get-out.

Yeah that’s a good point

Although I have to say, I’d like to believe that they would except Both my word & the word of another Garage....But Yep I Agree that if a Fault code does come up, I will Phone them there & then.

 

[The laird]

I th8nk the timing is the area I'd be concerned about imho.hope they pegged the engine properly on removal of belt even a tooth out is enough.is it Smokey or lumpy at all on idle Paul?

 

[The laird]

You've not said if any eml engine management lights are on the dash which if any of the suggested items other than the timing being out should illuminate the light

 

[harrow]

Another vote for the timing belt being a tooth or 2 out or a vacuum hose being left disconnected.

Also just make sure there is not a mat stuck under the accelerator pedal.

 

[Nesting Zombie]

You've not said if any eml engine management lights are on the dash which if any of the suggested items other than the timing being out should illuminate the light

Nope, No lights at all staying lit or Flashing on Dash once Engine starts & Hand Break is released. Nope not Lumpy or uneven in sound when at idle either, Just that it’s ‘Get up & Go has Got up & Gone’ with limited Power & Speed

 

[harrow]

My own (non-mechanical!) thoughts are fuel starvation, but how and where?

Marie your right, not enough cake and donuts !