Re: Excursion 6.8L rough idle -need ideas
Replace (or clean) the idle air controller (IAC) and throttle position sensor (TPS). TPS is the most common but after so many miles the IAC valve will carbon up and start to cause problems. Don't forget to install new plugs as well for optimal performance
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!