I have a 2003 manual Nissan Almera S petrol 1.5L with only 75,000 miles on the clock. Today the engine has started to surge.
If I depress the accelerator pedal more than approx. ½ inch - 1 inch, the revs fly up and I get no increase in speed. This happens in any gear at any speed.
Usually if I am turning onto a 60mph dual carriageway, I'd let the revs get to 3,000 - 3,500 and then shift. By doing so I need to press the accelerator down to at least half way.
Now if I do that, the engine revs very quickly from 2,000 up to 4,000 (before I notice it and let go of the pedal so it doesn't go extremely high).
If I shift at 2,000 revs instead, the car drives normally with no issues at all. So I go from 1st to 2nd at 2k, then shift from 2nd to 3rd at 2k, etc. Up to 5th gear at 2k.
Then if I try to press the accelerator down more than an inch, it does the same thing.
Under the bonnet nothing looks out of place and everything sounds normal. The revs in neutral appear to be absolutely fine. I can press the pedal down as far as I want and the revs increase as expected.
In gear when driving, if I press the pedal down more than an inch, the revs behave as if I'd put my foot down in neutral.
I'll take it to the garage tomorrow to try to see what the problem is, but I'm worrying it could be an expensive job so I'm hoping you guys might have an idea before I go.