Violent surging at around 2500 rpm

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My Name: Franco Lourens

Member
Posts: 3
Joined: Mon Jul 20, 2020 9:06 am
Model: C3 2002-2005, Original shape model
Year: 2004 (04)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 256897
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD

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Hi I am new here. I recently bought a used c3 2007, still looks and works great, however when I accelarate from a stop or change gears the car violently surges at around 2500 rpm. When it reaches 3000 rpm the surges are gone and goes normally. It starts easily, even when cold. Idles smoothly and doesnt backfire or die. Any help would be greatly appreciated. Thnx
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My Name: Arfur Dent

Guru
Posts: 3308
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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Franco Lourens wrote: Wed Jul 22, 2020 11:41 am Hi I am new here. I recently bought a used c3 2007, still looks and works great, however when I accelarate from a stop or change gears the car violently surges at around 2500 rpm. When it reaches 3000 rpm the surges are gone and goes normally. It starts easily, even when cold. Idles smoothly and doesnt backfire or die. Any help would be greatly appreciated. Thnx
Hi

With that many miles on the clock, I am surprised the engine is still running.

Is this the original engine or a second hand one fitted?
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My Name: Franco Lourens

Member
Posts: 3
Joined: Mon Jul 20, 2020 9:06 am
Model: C3 2002-2005, Original shape model
Year: 2004 (04)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 256897
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD

Post

Yes according to the previous owner and it's papers, this is still the original engine. It was really well taken care of with all services done at the dealer. And really feels good on the road. No smoke nothing. Just the surges.
My Name: Franco Lourens

Member
Posts: 3
Joined: Mon Jul 20, 2020 9:06 am
Model: C3 2002-2005, Original shape model
Year: 2004 (04)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 256897
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD

Post

Sorry thats not miles its actually kilometers. I'm South African
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My Name: Ozvtr

Moderator
Posts: 942
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
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Hi Franco,
I'm trying to work through a similar problem with another member here.

questions-about-a-petrol-powered-citroe ... t3976.html

Its a different type of engine but the symptoms might be the same. Can you have a look and see if anything sounds familiar? There are a few sensors that are the same on the two types of engines so common failure modes are not out of the question.