20 Most Recent 2001 Volvo V70 Questions & Answers

Your computer has detected an error with the the MAF (mass Air Flow) sensor. In conjunction with the inlet air temperature (IAT) sensor the combination is often referred to as the Air Mass Meter. Are you experiencing a 'surge and slow' effect on engine speed at idle, maybe the idle is erratic and almost stalls at times? The MAF is found as part of the air ducting just after the air filter box. There is an electrical connection to the top of it. Disconnect and dismantle the duct assembly to free the MAF unit. The MAF is a heated foil that sits in the air stream. As intake air flows over the foil it has the the effect of cooling. The cooling achieved plus the measurement of the actual temperature of the air doing the cooling by the IAT gives enough information to the engine electronic control unit (ECU) to estimate the volume of air entering and to allow the ECU to set an appropriate injection cycle to provide the correct fuel air mix. Spray the MAS with electrical cleaner, this is non residue cleaner so do not use anything harsh like carb choke cleaner or oily like WD40. Try to make no physical contact with the foil. (the IAT is bead thermistor sat in the middle of wire near the MAS foil). Once everything has air dried reassemble and reconnect. If the fault has been fixed the error code will be removed after a few restarts.

there should be a slot you can put a flat head screwdriver in to turn the motor round and close the roof. the motor assembly there is a magnet inside and a reader to tell the motor when to stop or move. the sensor can fail and ope till it cannot move any more it also as a water trigger. this in the event that the vehicle is under water the sunroof opens so you can get out. this feature can go wrong a well.

This could be your IAC valve, or idle air valve which is supposed to open fully when the car is put into drive. If not, engine will stall out. Clean throttle body, as well as the IAC valve with carb cleaner. Turn IAC upside down so carb cleaner does not enter the body of the valve or motor end of business.

clean idle valve and throttle butterfly ,all the best.

have the injectors overhauled by a professional diesel shop indications are that they are squirting and nit atomizing as required for a cold engine

You are to replace the radio

bigger is not better when it comes to turbo units as Leyland found out when they fitted a turbo to a 690 diesel that resulted in the destruction of the engines and damage to the company reputation of a reliable engine manufacturer Subsequent engineering found that a much smaller turbo produced more power without the destroying the engine The turbo fitted to the engine originally is the correct unit for the maximum power that the engine mechanicals can handle What you have to do is to ensure that the variable vanes of the turbo are working correctly and there are no boost pressures lost from intercooler leaks and loose hoses Run the fault codes to determine sensor and actuators for the existing turbo are fully operational

could be a tp sensor.

You can check this website, you find there wiring diagrams for Volvo V70 V70 CARKNOWLEDGE

everything is at 12 o'clock. see diagram from autozone.com

Seems excessive for just a cable unless the transmission has to be removed and dismantled. I suggest you check with the dealer for costs and parts availability and the dealer price would typically be the most expensive quote for your guidance. Then you should ask at least a couple of local transmission specialists who would typically be 30 - 40% cheaper.

Four qts of tranny fluid is a lot if u didn't overfill it? About all you can try is a bottle of Transmedic or Transx type fluid from auto parts store. If that doesn't break sticking clutch plates loose you will have to replace the transmission or have it rebuilt.

Go with the dealer diagnostics, if they don't fix the problems the rest of the repair is free.

It's due to your etm is starting to fail that's the first warning sign it will get worse

https://www.matthewsvolvosite.com/volvo-1999-and-newer-codes

Bad oil seals in your turbo ! The turbo has to b replaced thanx Chris

probably because you car needs a service !