hesitation, no codes, etc.
Did more than a little thread hopping and a few searches...
Still got a question.
1997 4.6 Sport - It's not driven very much lately. I've been painting it and sewing up new seats, etc.
Got all my codes cleared late last year, needed a couple of new downstream O2s. Cleaned the MAF, TB, EGR (orifice?), IAC, the whole she'bang - new plugs & wires, filters, TPS, etc.
I have a barely discernible stumble when idling and a very slight hesitation / stumble at idle when I pop the throttle... It picks up smoothly and runs well...WHEN COLD.
At operating temp, the stumble at idle is distinct, the hesitation on a quick throttle pop is more pronounced... I checked the fuel pressure, and it was on the low side of "good", with no bleed down)
Thread hopping leads me to a few possibles, Fuel pressure (pump or regulator or injectors) , cats, maybe.
Again, I have no codes at all and no CEL.
I thought on an occasion I smelled a "hot metallic" smell after dogging it a little the other day, making me think cats, but I haven't had a repeat of it and it was faint and fleeting when I thought I smelled it.
Proudly clinging to my Bible and my guns (usually at the same time... I got a permit)
1996 4.6 Thunderbird LX Sport
1997 4.6 Thunderbird LX Sport