Question about 2000 Volvo S40

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Volvo s40 gdi

Hi, my volvo (99 reg) gdi seems to run well until it reaches about 3000 rpm it then hits a flat spot where you feel a loss of power to the point that if you try to accelerate it will even lose revs? but this only happens 2 out of 3 times sometime you go out and it runs beautifully! i've had a new ECU and checked for carbon build up. i've also had the throttle valve checked and a new cat put on but it still happens? seems to run well if floored? problem happens more when cruising?
can anyone help??

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My 1998 Volvo does the same sometimes. Better petrol helps for me, these engines like the higher octane petrol. My car does not like the BP petrol at all for example.

Posted on Jul 14, 2008

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1 Answer

Timming belt marks


Click on the following free direct Link. It has the Timing: Belt and Mark Diagrams for your 2001 Volvo S40. Plus additional Instructional and Directional Diagrams.

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

http://www.2carpros.com/car_repair_information/year/2001/make/volvo/model/s40/2001_volvo_s40_timing_belt_diagram_marks.htm

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YOU MAY HAVE A IDLE SPEED CONTROL VALVE PROBLEM, CLEAN IT FIRST, THEN DISCONNECT THE BATTERY, FOLLOW THE PROCEDURE I HAVE ATTACHED.

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