2003 Volvo s80 idle rough when at a stop light or stop signs that the lights l dim when it goes into the rough idle. As far as when I am driving there are no issues . Only when I have my foot on the break or the car is idleing in park

SOURCE: @1000rpm car idles good, under 1000rpm,engine has

you may want to check your Idle Control Solenoid Valve if it needs cleaning. This is a common issue. If this does not help, I would ask for more details like maker and engine model.

SOURCE: 2003 Mazda Mpv jerks when idling abd breaking

Check to see if you have a MPV that has been included in the recall for the PCV line. Yes it is difficault to get to on your own, however they have special tools to reach behind the manifold to remove the line and install a new one. If you do it on your own it is very difficaul and will take a few hours as a I did before I found out about the recall. The service dept. should have asked you about the recall when you went to get the part from them. Where I got pissed was when they did replace the hose the faulty line had fouled the pcv valve and they did not bother to replace it and that is tucked under the intake manifold and under the fuel rails.

SOURCE: rough idle will die at lights and stop signs

hello, i had the same problem with my dodge. i used throuttle body cleaner. took off air intake pipe off motor and sprayed it in the throuttle body with motor running to clean out carban build up. now everything is fine now. hope this helps.

SOURCE: 2000 Volvo S80 idles up and down when stopped at

check mass air flow sensor

SOURCE: Idles rough, rpm changing-----Goes dead at times,

from experiance you have a faulty injector,try running a fuel cleaner through the fuel system first and see if will clear the problem if this only improves the fault then run a second lot through its cheaper than an injector.adrian,,,,,,,,,