I inherited grand ma's 1995 LTD last year, after her passing. I pretty much have been the only wrench to work on this ride ever since she bought it new. Anyway, here is my question. The IAC valve is a complete bitch to access on this vehicle. For some stupid reason, and just through the model years 1992-1995, Ford put said valve on a passage under the intake manifold, at the base of a throttle body elbow.
Accessing this thing requires me to be a contortionist. As well as disconnecting a whole lot of items. My issue here is the vehicle acts as if the IAC valve has frozen due to moisture. Only when the temps outside are at the freezing level, as they have been this past week. When I start up the beast, it feels as if the IAC is stuck at low idle, and won't move. So what I do is hold the throttle open somewhat, until the engine starts to warm up. Then it works just fine. Me thinks then it warms up enough to move and or melts the ice. It acts like it has carburetor ice in it, like some models used to do years ago.
Over the years, I have replaced this valve at least 2-3 times. Along with removing and cleaning out the EGR passages under the throttle body elbow. Ford had a TSB on that little issue, and it comes back every few years now and then.
Since I don't want to go through this same ordeal again right now, in the cold weather, is there some kind of throttle body cleaner that I can use that will work without too much disassembly? I have a few vacuum hoses I can access that in my theory, can pull the cleaner up out of the can, and perhaps wash down the insides of the IAC, without contaminating the MAF sensor.
If it works, great. If not, the ride will have to wait until warmer days........