Touring. After warm-up, why does it stall at stops?

SOURCE: engine stalls at stop lights and stop signs

sounds like the torque converter lock up might not be disengaging. You might also want to check for engine vacuum leaks. Does engine idle smoothly when in park or nuetral ? if the idle is good I would suspect torque converter problem.

SOURCE: 1999 Volvo S70 Stalls at stop signs and traffic lights

These models had a problem with the electronic control modules, and this is what controls the idle speed. Sometimes they just need to be cleaned, but sometimes they are defective. Volvo has extended the warranty on some of them to 10 years or 200,000 miles if it is found to be defective.

http://repairpal.com/volvo-s70-1999

SOURCE: 2002 bmw 325i running rough

Did you replace your fuel filter when you did the pump? At lower RPM's the engine would be starving for fuel. Another cause could be your throttle position sensor. It is what shifts your transmission at predetermined shift points as you throttle up and down. It is also what kicks down your engine when you are stopping or slowing down as you go down through the gears. Hope that helps!

Marvin

• 85242 Answers
• Posted on Apr 29, 2009

SOURCE: 1996 mercury mystique stalls when I stop a red light

I am a Ford tech (35 years) and this is the cause of the problem in about 90% of the cars I see with this problem.
Here are some of the causes of surges, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

SOURCE: stalls at stop sign/stop light...will restart but

sound like an idle air control valve problem