Re: 91 ford explorer engine problems
Before you go and buy more sensors, when was the last tune up done with new plugs, wires, cap & rotor? If it's been recent (within' 25K) then I'd replace the IAC sensor and hope for the best.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!