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

This sounds like the idle speed control system is full of sludge, have it cleaned.

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