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207 1.6 VTI Auto Knock and Gearbox malfunction

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08.05.2020 21:25 # 1
Emrecankocer
First of all hello everyone,

The 2009 model peugeot 207 1.6 VTI, which I bought about 1 year ago and I am very pleased with its use, started to be a knock problem after the lpg was installed in my automatic car. The knock usually starts after the vehicle's engine temperature exceeds 75 degrees. When I give the gas a lot in these transitions, the knock is much less noticeable. Apart from this, the vehicle has several gearbox malfunctions, and these failures are often encountered in places where the vehicle has difficulty on the hill. The problem is solved when I disassemble and plug in the battery terminals or when the vehicle is stationed and waited for 10 minutes.

While the problem occurred in the first place only when the vehicle was in throttle, it started to be in the gas now. I have been using petrol for a long time, maybe because it will be improved, but it did not help. Now I want to solve the problem radically, but I want to go to a trusted master or someone who knows his job. As far as I have seen people who have experienced similar problems in the forum before. I would be glad if there is someone you can recommend me as a method or competent person.


08.05.2020 21:25 # 2
talip206
There are two possibilities from simple to difficult. 1st throat butterfly may be contaminated. The throat butterfly closes and opens instantly when there will be gear transitions. If there is contamination, it may knock because it will not close. The second possibility is that the transmission oil cooler may be problematic. Since the LPG combustion temperature is high, cooling may not be enough.
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