Rev Counter Light Going Out

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My Name: Ukphiltr7

Experienced Member
Posts: 44
Joined: Sun Dec 02, 2018 9:34 pm
Model: C3 2002-2005, Original shape model
Year: 2004 (54)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 80000
Trim Level: LX
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Been thanked: 2 times

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My car came back from the garage where the coolant sensor was replaced along with the battery to try and resolve the starting issue.

On the drive home all the dash lights came on and then went out and the air bag light stayed on. I turned the car off and on again and she was OK all the way home.

The next day my wife took it for a drive and all the lights came on again and the steering went heavy. She turned ot off and on again and all was OK apart from no power steering. That nigh we went out in her and the steering was heavy, we got to the shops and when we started her again all was OK, the steering was back to normal.

The next day we went out in the C3 and the rev counter lights would keep going out and back on with the rev needle going down to zero when the lights went out, but no power loss. This has been the case now when we drive her and we can hear a clicking in the in the passenger foot well.

Has anyone come across this as what I read it may be to do with a coolant leak, something that may have happened when the garage changed the coolant sensor.
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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.
Has thanked: 36 times
Been thanked: 252 times

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These are classic signs of battery "troubles". It could be a number of things associated with the charging system. But there is no point in going into them here.

Take the car back to the mechanic and get them to have a look at the battery/charging system. In the very least get them to load test the battery.

Haven't you already replaced the battery? Did the mechanic (or you) check the alternator output? Do you have a battery charger? Can you attempt to re-charge the battery your self?
User avatar
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.
Has thanked: 36 times
Been thanked: 252 times

Post

I have just now uploaded a post to the "tips and tricks area" on how to check the charging circuit.

viewtopic.php?f=8&t=4313&p=19332#p19332
My Name: Ukphiltr7

Experienced Member
Posts: 44
Joined: Sun Dec 02, 2018 9:34 pm
Model: C3 2002-2005, Original shape model
Year: 2004 (54)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 80000
Trim Level: LX
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Been thanked: 2 times

Post

Thanks, will check that, but the alternator is new and the battery is too.

Well today I went out for a drive today and I have all the lights on the dash flashing again. The power steering has gone stiff again, also the fuel, engine heat and speedo would go off (no lights and speedo going to 0).

I am really hoping that it is a connector that has gone and nothing too serious.

I took the car back to the garage today and on the way there, I was going around a roundabout and the wheel jerked nearly out of my hand. She seemed to want to straighten up, which is not good on an island.
User avatar
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.
Has thanked: 36 times
Been thanked: 252 times

Post

There can be problems in the power circuit other than the alternator or the battery.

I know that you have access to a multimeter. Follow the guide step by step and see what you find.
My Name: Ukphiltr7

Experienced Member
Posts: 44
Joined: Sun Dec 02, 2018 9:34 pm
Model: C3 2002-2005, Original shape model
Year: 2004 (54)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 80000
Trim Level: LX
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Been thanked: 2 times

Post

Well after a fair bit of money and time the issue seems to have been the regulator on the alternator. It appears to have gone and cooked my old batteries and the fact that I had a new battery it was putting too much power into the system. Also the alternator was kicking out about 18v.

I have had the regulator done and the issue went away.

Thanks for the link and the information Ozvtr.
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