Having problems with your 2001 Volvo S40 ?
Turbo bad when i try to accilerate quickly, the car seems to sputter badly but stops and runs perfectly when put into neutral. then runs extremely rough when put back into driver but smooth if back to neutral. After a while the symptom disappears and runs normally. not sure if turbo or trans or what?
If diesel, it could be dodgy glow plug(s). Had a similar problem with my s40 and new glow plugs solved it!
Repair Help & Product Troubleshooting for 2001 Volvo S40
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