Peugeot 207 Petrol (1.4 16V KFU Engine) - Oil Pressure Indicator On at Low RPM: Causes & Solutions

Question

Hello.
Peugeot 207 car with a warm engine 90 degrees. At low speed (idle), the oil pressure indicator lights below 1000 rpm.
Last year I changed the oil and oil filter, the car stood for 3 months.
On a cold engine all is well.

What could be the reasons for this?

Engine 1.4 gasoline 16V engine code KFU.
What should be the pressure on a warm engine at idle and high speed in this model?

Anonymous · Answer

Oil pressure should be around 4 bar at 2000 rpm (according to Autodata).
The minimum oil pressure in a running engine should not be lower than 0.35 bar.
The reasons for lighting the indicator, unless of course it can be assumed that the sensor is working properly, is a damaged (or blocked in the open position) pressure relief valve that is located in the oil pump, clogged oil pump dragon, worn connecting rods.
It also happens that the oil filter itself is to blame for the low pressure in the system, due to the low throughput capacity.

cinko · Answer

Ok, I bought the original filter today (last year I did not remember which company, but not the original) so I will start with the filter, then go to the mechanic and measure the pressure.
So at idle on a hot engine (pointer below 1000 rpm) it cannot be less than 0.35 bar.
As for the oil pressure sensor, I do not know if it is functional but I have a question
is it possible that it would show badly after warming up at low speed?
As far as the shells are concerned, it is probably to be checked after unscrewing the oil pan
(I'm thinking here about the mechanic that he can tell)
Is replacing a possible oil pump a complicated job?

Anonymous · Answer

Yes, this is a general assumption for all internal combustion engines. This cannot be ruled out. Pressure measurement will definitely verify the correctness of his work. The pan can be checked after removing the bowl and possibly the pump.

cinko · Answer

Hello.
I replaced the oil filter with the original Peugeot so on the packaging it wrote (MAN wrote on the filter), I replaced the oil pressure sensor which was chosen after the nr.vin, I made a small oil refill and I am after a week of driving and for now the indicator did not light up.

daro806 · Answer

rivet the dragon in the oil pump in the strainer sometimes there is silicone

jakebry · Answer

hello cinko How is the car now after you changed the sensor and oil filter? Dodano po 40 : hello cinko How is the car now after you changed the sensor and oil filter?

Peugeot 207 Petrol (1.4 16V KFU Engine) - Oil Pressure Indicator On at Low RPM: Causes & Solutions

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