2004 307 Hill and Gear Problem

First of all, I wish you a pleasant forum.

My problem is that in my 2004 model automatic transmission 1.6 and 109 hp gasoline vehicle, the speed drops when climbing a hill, the throttle becomes unresponsive and the speed decreases.

A problem in the brain. It didn't come off and the engine is in good condition. The master that I showed him said it was like that because there was no turbo in the vehicle.

When I put the vehicle in parking mode while it is running, and wait for a few minutes, it locks in parking mode and does not provide gear shifting. I have to stop the car and start it again. There is no problem with the brake switch, the stop lamp works when the brake is pressed, and the gear shifts normally and without knocking at 3k rpm.

Thank you in advance for your information.

Thank you for your interest.

The vehicle has never seen LPG. At 151k.

Yesterday I tried it manually and the slope came out without any problems. It drops in 1st gear when you go below 10km/h. It seems to be cumbersome as it enters the slope in 2nd gear. When I entered 1st gear in manual and switched to 2nd gear, it came out without difficulty.

When I shift the gear to the d and r positions, it sounds like an electric hiss. Steering seemed stiff to me, but they said it was normal. I don't really understand as this is my 2nd car. My old car was a 2011 fiesta, I can't compare the 2004 model car with it, after all.

Sorry I'm asking a lot of questions because I don't know the car, I searched and couldn't find the forum. I thought I'd ask on one topic instead of starting a separate thread. :)

P, the brake switch is defective. These vehicles have double brake switches. One for the lamps and one for the gear. Both are on the brake pedal. I remember that one is white and the other is brown.

It is normal to have a sizzling sound when switching to D and R positions. Solenoid valves make noise because they work. If there is no sound, then be afraid.