Re: Misfire on decelaration
Have you been going through any fluids? More so coolant or engine oil?
Take that particular spark plug out and swap it with another. Just to rule out a bad O ring on a fuel injector, swap it with another cylinder as well. If the misfire follows that injector you will have found the problem. Make sure that the plugs are gapped correctly. I know a lot of folks who buy them at the auto parts store and install them right out of the box and they have misfire and drive-ability problems.
'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!