20 Most Recent 2000 Volvo V40 - Page 3 Questions & Answers

Radio codes are performed by the original owner. If you have the owners manual they may have wrote in in that book for reference

-Most car . It's in the tank.Mai

Could have many causes, but a good start could be to have the
oxygen sensor voltage output checked.(In exhaust system)
This would explain why mixture/ variable idle speed occurs.

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If you mean the transmission take it to a tranmission shop to be check out,

The car computer adjusts the idleCheck to see if there is an AIR Idle Control Valve at base of throttle body-- that you can remove & cleanI'm not a Euro guy sorryTry You Tube Video & put in your veh & question

I have the same problem in my car volvo v40 1.6. A mechanic told me that this noise did VVT Pulley and should be changed.

it needs to be computer reset so u will have to find someone who has one. not just dealers

HelloThe Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.

idle air control valve.