2003 Volvo - motor stalls when making right turns & applying brake

Vacuum leak is cause

needs a throttle body cleanin--idle air motor maybe aging--get car scanned soon--mite also hav a vacuum leak--get a repair manual for troublshoot procedures

Sounds like your ETM - Electronic Throttle Module.

Search for xemodex. He has a direct replacement for 1999-2001 Volvos. I ordered mine from him, and its much better now.

Get a quote from your dealer, then compare the prices.

It is most likely that you have a hole in your vacuum hoses (check your flame trap too) or your 02 sensor is bad. i would check both. good luck:)

Sounds like your vacuum assist brakes diaghram has sprung a leak. Pull the hose to the assist and plug it with a bolt or something. Then try it.

Start by cleaning your throttle body.  May need an Idle Air Control valve.

the firsrst thing to check is a FUEL-VAPOR LOCK and evap system esp[ecially the fuel cap and running the A/C can cause relays to get hot and check fuel pump relay and filther and last fuel pressure

It may be a fuel pump issue, in most cases it will set a trouble code.

My response to another post, see if it is applicable:

Had the same problem where the idle would go to about 500rpm and 'cough', i.e. move up and down and not be stable. Got so bad that when I was in traffic recently the car stalled every time I came to a stop. Turns out I have a bad oxygen sensor as well as MAP sensor. Expensive parts (about $200 each) though not hard to replace. May want to check those first. MAP sensor I believe controls something with gas combining with oxygen in the engine (too much gas, not enough oxygen to combust). I would press the gas peddle and not get much response. I was flooding the engine because that sensor was bad and that's why it was stalling. All stuff I learned after my very uncomfortable experience recently. I have a 2003 S60.

I have a 95 940 that was stalling, replaced fuel injection relay