Hi, I searched for this problem on the internet but couldn’t find exactly the same situation so I thought I’d ask it here.
The situation is: while driving on the highway, the engine suddenly lost acceleration. The engine was still making engine sounds, electronics were on. It just couldn’t pull the 120kmph I was driving, the RPM slowly went down (with the gas pedal to the floor) and the car decelerated to 100-90 in 5-10 seconds and then I pulled over.
After 5-10 minutes waiting, I tried driving again and the car drove fine, went to 120kmph and beyond, as usual. But then 15 minutes later, the same thing happened. After waiting, it drove fine.
- car is diesel from 2006. Last maintenance was 10k km ago.
- I drove through a very heavy rain right before it first happened.
- A few month back, when it was colder, there would be thick white and stinky clouds coming from the exhaust when the engine was started from cold state. Those would disappear in a couple of minutes.
- sometimes when I turn the key to start the car, it makes a strange, “zippy” noise and doesn’t start. On the next try it does.
What do you think it can be? I’ve read about clogged air filters and exhaust (there is no smell, I can’t even see smoke when I start the car), ignition problems, fuel pump problems. Could the rain have had anything to do with it?