2003 Ford Ranger Q&A
2003 Ford Ranger Question: 249,000 miles on my '03 low rpm's at stop signs, then dies.
Have it tested, could be a simple fix, but it could be computer controlled. - ProfessorG
pop the hood and listen for hissing sound,pcv vacuum hose leaks are common. get it scanned and go from there,po171,po174 bank 1,2 system lean will be there most of the time when you have vacuum leak/s - bmdouble
Have it smoke tested for vacuum leaKS. also can be caused by "soft" hoses that aren't "leaking: but are collapsing which will "choke" the engine. pcv hose,etc. - winrservicesauto