when motor is hot.. engine fluctuation..

Questions specifically about a Petrol powered Citroen C3 (usually engine or fuel related problems).
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My Name: simuzer

Experienced Member
Posts: 57
Joined: Thu May 02, 2013 1:39 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 i
Fuel Type: Petrol
Mileage: 218000
Trim Level: SX
Gearbox: Other
LHD or RHD: LHD (Europe)
Engine name: TU3 (75 PS)
Location: istanbul - Turkey
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i am soryy for bad English. Translated by Google. So, Some words may be used differently.

Thansk you all for now,


Recently, engine speed fluctuation occurs when the engine is hot. Meanwhile, the car is shaking.

- There is no problem going on the road.
- When I press the gas, the cycle rises. There is no problem in that either.

Its no problem when motor is cold.

My vehicle, 1.4i 8v bva 2003,

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My Name: Ozvtr

Posts: 1043
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
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
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Sounds like it might be a vacuum leak.
Listen for "hissing" in the engine bay.
Get a can of Starting Fluid and spray it around the inlet manifold.
Look on Youtube "finding vacuum leaks in your engine".

DANGER, WARNING! Starting fluid is highly flammable! Do not spray it near the exhaust system. Read the directions on the can!!
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