Volvo Owners Club Forum - View Single Post - Car Over-revs between 1st & 2nd gear

paulmansfield · Sep 17th, 2019, 20:44

I've just bought my first Volvo (2004 S40 2.0D SE) and it's got a few problems. The main one is the accelerator, which over revs by itself 500-1000rpm when I accelerate hard in 1st gear and change up to 2nd gear. This means I have to change gear at 2,000 revs which makes for very sedate driving. Where is the problem, is it the throttle position sensor or the accelerator pedal, or can it be fixed by just cleaning the throttle body?

The second problem is smoke, it pumps out black smoke on acceleration in any gear.

Sep 17th, 2019, 20:44	#1
paulmansfield Junior Member Last Online: Feb 2nd, 2024 19:55 Join Date: Sep 2019 Location: Nottingham	Car Over-revs between 1st & 2nd gear I've just bought my first Volvo (2004 S40 2.0D SE) and it's got a few problems. The main one is the accelerator, which over revs by itself 500-1000rpm when I accelerate hard in 1st gear and change up to 2nd gear. This means I have to change gear at 2,000 revs which makes for very sedate driving. Where is the problem, is it the throttle position sensor or the accelerator pedal, or can it be fixed by just cleaning the throttle body? The second problem is smoke, it pumps out black smoke on acceleration in any gear.