Hi.
>
> I have a '89 T-Bird 3.8L (not SC) and am having an ignition problem
> that I'm having trouble nailing down.
>
> The car starts fine and idles steady but slightly rough with a miss
> that happens intermittently anywhere from half a second to 2 or 3 > seconds apart.
>
> When I take off, there is usually (but not always) a brief hesitation.
> When I want to get up to highway speeds, the miss gets considerably
> worse and sometimes it's so bad that he car hardly wants to accelerate
> at all and shakes like a son-of-a-bitch. The more I put my foot down,
> the worse the missing. Shifts are also kind of hard.
>
> Also, I can rev the engine in park and it sounds pretty good. The
> real problems don't become apparent until the engine is under a load. >
> Funny thing is, I was driving to work the other night and for the last
> half mile of the drive the car ran almost perfectly, so the problem is
> intermittent, although it is a problem 95% of the time.
>
> What I've done:
>
> changed spark plugs
> changed 3 plug wires and coil wire
> changed distributor cap and rotor
> checked the timing (ended up advancing it about 2 degrees)
> used injector cleaner for the last 2 weeks
>
> What I still need to do:
>
> change remaining 3 plug wires (a bitch to get to)
>
> What I'm also considering:
>
> ignition module
> ignition coil
> kickdown module
>
> Are there any other possibilities? If you guys could, just list all
> the things you could think of that could cause this kind of
> intermittent behavior. I thought about fuel filter, but when the car
> ran like new for 2 minutes the other night, I kind of doubt it's the
> filter at this point.
>
> To give you an idea of where I'm leaning on this issue, I'm still
> thinking chances are good that it could still be one of the plug wires
> I haven't had time to change yet.
>
> The car has 104,000 miles and I'm almost certain the plug wires
> were/are the originals.
Well?What brand wires are you using?