Hey guys, I'm new here. I just can't believe the sheer amount of information available in this forum! Everyone here is very knowledgeable and I look forward to participating in the future..
Please forgive me if I use any improper terms when explaining my problem, I am very used to early to mid 60's cars and engine configurations, all this EEC and emissions and sensor shit has got me a little.. overwhelmed.
I bought a 85 Grand Marq cheap last week, as a car for my fiancee to learn to drive in, and eventually it will be hers. It only has 65k original miles on it, and not a spot of rust (VERY unusual for a Wisconsin car) ! Paint is faded, though, almost no clear coat left.
The car was idling poorly cold (seeking idle, up and down in 2-3 second cycles and sometimes stalling), and pretty good when warm, but very rich. I thought it was a choke problem, and I was right! The choke spring had disengaged entirely from the fast idle cam (how did that happen??), and it (the cam) was floating loosely.
I fixed the choke, but now the car idles like it's on crank, even kicked down. There is a fast idle adjustment screw, but it's backed out almost entirely. Also, it seems that there is a vacuum triggered kickdown... uh.. thingy that should disengage the cam (I assume when the engine is finally warm enough), but it dosen't seem to be doing it's job.
On a carb, this problem would be trivially simple. With a mess of sensors and vacuum lines, I'm stuck. I don't have a shop manual yet, but I got a EVTM and a Ford BCE and PLM manuals from eBay for cheap.
Until then, does anyone have any suggestions? Thanks in advance.
Edit:
5.0L (302in2) CFI
Please forgive me if I use any improper terms when explaining my problem, I am very used to early to mid 60's cars and engine configurations, all this EEC and emissions and sensor shit has got me a little.. overwhelmed.
I bought a 85 Grand Marq cheap last week, as a car for my fiancee to learn to drive in, and eventually it will be hers. It only has 65k original miles on it, and not a spot of rust (VERY unusual for a Wisconsin car) ! Paint is faded, though, almost no clear coat left.
The car was idling poorly cold (seeking idle, up and down in 2-3 second cycles and sometimes stalling), and pretty good when warm, but very rich. I thought it was a choke problem, and I was right! The choke spring had disengaged entirely from the fast idle cam (how did that happen??), and it (the cam) was floating loosely.
I fixed the choke, but now the car idles like it's on crank, even kicked down. There is a fast idle adjustment screw, but it's backed out almost entirely. Also, it seems that there is a vacuum triggered kickdown... uh.. thingy that should disengage the cam (I assume when the engine is finally warm enough), but it dosen't seem to be doing it's job.
On a carb, this problem would be trivially simple. With a mess of sensors and vacuum lines, I'm stuck. I don't have a shop manual yet, but I got a EVTM and a Ford BCE and PLM manuals from eBay for cheap.
Until then, does anyone have any suggestions? Thanks in advance.
Edit:
5.0L (302in2) CFI
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