bulb question Reply #15 – May 31, 2009, 02:31:33 PM Quote from: jcassity;275226hey watchdevili have a curiosity,,,,,,,can you verify your inner headlamps on the bird hot wire colors?I have a theory that occured to me last night while swapping the header panel lenses.The theory is,,,, The inner lighting on 4eyes were wired out because these lamps were bulb assemblies.The inners on 87-88 were bulb housings and not capable of containing the heat disipation of both elements due to the cubic inches of space within the housing. From an engineering perspective, ford probably decided the wattage of both elements being on exceeded the space required to light both up so they wired only the low beam.Thunderchicken,,i might be reading too deap into the pony comment but the inner fronts on my coug's have three conductors, 2+g. The wire is there but prob dead end somewhere.The wiring for the pre-87 four eyed headlamps was simply changed to combine the wiring for the single dual function headlamp bulbs of the 87-88 models. It's not clear why Ford found it necessary to make a small inner parkinglamp when a larger headlamp lens incorporating that space would have worked. Since they used a seperate parking lamp inboard, I think they just lit that area as a parking lamp for visual balance. There is no need to make it a turn signal when only one is needed per side and positioned on the corners for best visibility. For 1989, Ford reverted back to dual beam headlamps and combination turn/parking lamps on the corners. For 1994-97 it reverted back to the 87-88 setup.When I had my 1989 Tbird, I installed a 1996-97 style front end on mine with the newer lights. I had to modify the wiring from dual beam to single beam headlamps, plus tap into the wiring of the corner parkinglamps to get the inner ones to operate. At that time I decided to make the inner parking lamps more functional by wiring a "daytime running lamp" circuit on a seperate switch using the normally unused bright filament. Quote Selected
bulb question Reply #16 – May 31, 2009, 03:43:24 PM Quote from: jcassity;275226Thunderchicken,,i might be reading too deap into the pony comment but the inner fronts on my coug's have three conductors, 2+g. The wire is there but prob dead end somewhere.What colour are the three wires? If there are two the same colour and one ground, (IE two browns and a black) that just means that both brown wires are connected to the same terminal inside the socket, and Ford simply used the socket as a splice to carry the park circuit elsewhere. Quote Selected
bulb question Reply #17 – May 31, 2009, 04:19:17 PM Could somebody with an 87-88 cougar humor me and try their hazards? The more I think about it, I could almost swear that they blinked... I know the schematics say otherwise, but my memory is screwing with me.CoogarXR Quote Selected
bulb question Reply #18 – May 31, 2009, 06:24:33 PM Had an 88 cougar and I don't remember them blinking but it has been 6yrs or more since then. My current daily driver is a 94 cougar XR7 and it has those smaller middle lights also. They don't blink and also have the dual filament bulb. Have you tried a single filament bulb? Not sure about the 87-88 but the earlier ones take the older 1157 round socket style bulbs those won't interchange with 1156 due to the difference in the teats that stick out to hold the bulb in. Now if it has the blade type socket 3057/3157/4075/4114/4157 then I do believe that you can swap in a 3056/3156 bulb. Hope that helps! Stuckman Quote Selected
bulb question Reply #19 – May 31, 2009, 09:52:22 PM Quote from: CoogarXR;275279Could somebody with an 87-88 cougar humor me and try their hazards? The more I think about it, I could almost swear that they blinked... I know the schematics say otherwise, but my memory is screwing with me.CoogarXRMy 88 XR-7 with stock wiring does not flash the inside parking lamps with the 4-way flashers or turn signals. Quote Selected
bulb question Reply #20 – May 31, 2009, 10:30:17 PM Quote from: hwy73;275337My 88 XR-7 with stock wiring does not flash the inside parking lamps with the 4-way flashers or turn signals.same here,,just tried it.thunderchicken,,ill get the wire colors tomorrow. prob the same colors as yours though. Quote Selected
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