Car Throttle Stuck Problems of Volvo S40

Prior to latest incident, the car had occasionally gone into "limp" mode, sticking in 3rd gear but drivable. That problem would go away after a day or so. Local shop couldn't find anything definitive. Bigger problem was yesterday evening's loss of throttle control and multiple electrical issues. Idle throttle setting (eg stopped at lights) became unstable, occasionally revving upto to ~2000rpm. Moments later on suburban divided main street, throttle stuck at ~2200rpm which meant I was doing 45mph (straight line) without any pressure applied to gas pedal. Slowed on the brakes until I shifted into neutral at which time everything died (electrical) and came to a stop, short of traffic lights. Time of incident approx 8pm est (dark), roadway fully lit thankfully. Car was pushed off street. Some electrics came back on when tried but full christmas tree lights (ie everything) across entire dash. Towed home. Removed ignition key (was inserted to ensure steering was unlocked) but radiator cooling fan remained on (engine hadn't run for 2. 5 hours by that time). Pulled a fuse under the hood to stop it dumping the battery. Car is no youngster, manuf 2003 in netherlands, purchased second hand in 2005 with approx 20,000 miles on the clock. Currently at 108,000 ish. Other issues with car (not safety related) means I wont be having it fixed given its age and general cosmetic condition. It will be donated for scrap.

See all problems of the 2003 Volvo S40 🔎.