grab a can of propane and (dont light it you fool!!!!!!!!!!!!!) go around the intake mani and all vaclines. you are looking for the motor to start running rich youl hear it smooth out or stutter. tap lightly on the iac you may want to inspect it. and i worked on my car there all the time!!!!! is it true that hecker is buying you guys out? another good one is to grab a WDS and scan for a code. now mine did this when ever i had to disconnect the batt it would clear kam( keep alive memory) so it had to relearn the fuel trims. its also possible that you have a O2 going out. gosh after smoken me wit that maf housing deal id figure this would be a cake walk for yer super diag skills j/k
O.K. so the stalling thing seemed to clear itself up but I decided to swap out the IAC anyways.
So I put in the new IAC and the car jumps to 3000 at a cold start and takes forever to come down, it also climbs between gears and hangs at an idle VERY slowly dropping to 900 revs.
I figured I would try a second IAC just in case (replaced o-ring gasket as well) and the second IAC does the exact same thing.
So this morning I put the old IAC back in and the car behaves perfectly.
WTF- I know these cars use an adaptive learning strategy but this makes no sense, What do I have to do, drive it for a week while the thing idles at 2000-3000 at a stop light?
I did disconnect the battery so the PCM would reset each time and still the old IAC works perfectly and the new ones make the car psychotic.
Un-hook the battery when you slap in the other one, have you tried my air passage mod yet for the iac?
The way you make it sound with the new iac, makes it sound like what my car did until I did the air passage mod.
Also, double check the bolts that hold the manifold to the head, I noticed when I tore mine down they where pretty loose, some are a bitch to get at, but, as long as you got a 1/4" socket set, a few extentions, and a flex joint, you should be able to nail them all from the top, there is one in the middle that you can hit with a ratcheting wrench.
man ! you got like 100 ft to walk and grab a wds , hook the thing to yer dlc( data link conector) answer a few simple questions, scann yer pids, monitor the data... and vualla!! you now know exactly what yer computer is inputting and out putting. its simple the first grage door facing the parts barn ( the one closest to the write up bay) walk through that one and ask for tom ryan, tell him that a friend of yours says that a super guenuis of his caliber( gotta stroke the ego a bit) should be able to help. they go on lunch around 1:30 so that would be a good time. or call him ask him if there is any thing that you should check, tell him who you are. trust me, you know parts really good, but diag is a skill one is born with. your svt is one of the most complicated systems ford has, variable intake cam, variable intake mani, a complicated fuel system, you have a issue with unmetered air of some sort. my guess is that the vac lines up on the manifold have rubbed through just like every other focus.
focinite wrote:
you have a issue with unmetered air of some sort. my guess is that the vac lines up on the manifold have rubbed through just like every other focus.
Its electric related though, if it was vac related, it would be occuring more often, but, I do agree its air related. Either way, I need to remember to call steve and order more parts...my truck says so...and I need chrsyler parts
focinite wrote:
man ! you got like 100 ft to walk and grab a wds , hook the thing to yer dlc( data link conector) answer a few simple questions, scann yer pids, monitor the data... and vualla!! you now know exactly what yer computer is inputting and out putting. its simple the first grage door facing the parts barn ( the one closest to the write up bay) walk through that one and ask for tom ryan, tell him that a friend of yours says that a super guenuis of his caliber( gotta stroke the ego a bit) should be able to help. they go on lunch around 1:30 so that would be a good time. or call him ask him if there is any thing that you should check, tell him who you are. trust me, you know parts really good, but diag is a skill one is born with. your svt is one of the most complicated systems ford has, variable intake cam, variable intake mani, a complicated fuel system, you have a issue with unmetered air of some sort. my guess is that the vac lines up on the manifold have rubbed through just like every other focus.
If it was vacuum related then it wouldn't run perfectly with the old IAC back in the car.
Besides, I've been here for six years and I know like one guy over there by name and I have a hard enough time finding a chance to take a leak during the day let alone walk over and chat with the techs.
It has to be related to the adaptive learning system, Two brand new IAC's act exactly the same way but the old one that the car is used to works fine.
How long does it take that system to learn how to run with a new part?
I can tell you that I for one will not drive around for a few days with my car idling at 2500 at a stop light unless there is absolutley no way around it.
Far be it from me to be sarcastic but really, what idiot came up with a system that makes a car run WORSE with the new part than it did with the old one?
wink wink.....bitches
