Re: '93 Aerostar hard to start when cold
'93.... crank position sensor perhaps?
As for seafoam, you can use it just as you would on any vehicle. Newer vehicles it's best to use a vacuum line (brake booster line works best) to suck in about 1/4 can of Seafoam. Some people allow the engine to suck up enough until the engine stalls out on it's own. You don't need to do that on newer engines, as you'll have to crank the begeeze out of it before it'll start (and smoke like crazy!). You can be adventurous and use the vac line from other accessories (cruise control perhaps - if equipped). As long as it finds a way into the engine, that's all that matters. I still find the brake booster line works the best
'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!