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Re: Attempts stall, Idle Pulses 600-800 rpms, horrible MPG
Just got back from Pensacola (235 miles each way). Currently I'm getting 10mpg in town and 17 mpg on the highway and these figures are very accurate. I just took a trip and tested it. Overdrive is definitely getting utilized and besides the problem I've been trying to figure out (almost stalls/stumbles at ONLY hot idle when in park or in drive at idle when A/C is off after radiator fans turn off) the van drives like a dream and sounds just as it should (very smooth running) except when I turn off the A/C and the fans turn off.
All those items you mentioned in the previous post have been replaced. Every time whether its a shut off of the a/c or a/c off and fans turning off on their own it tries to stall the van. I guess we could call it a stumble and it picks itself right back up. YES, this only happens when full HOT. Never at cold.
I still don't like that I smelled even a "hint" and it was just a HINT of fuel for a split second and then gone from the FPR and I also don't like that when observing the fuel pressure while doing various testing that the psi remained 30psi and at one point dipped to 29 and eventually came back up to about 31.
I don't have an ampmeter. I have a multimeter..... Could I measure amps with that? or does that just measure volts?
I have tested ECT resistance and it checks out, however I have not tried pulling the ECT connector while its in use I don't think.
I am not sure I believe (unless someone can explain otherwise) the new fans are pulling too many amps. As I understand it the motors themselves pull the amps so why would i observe a higher than usual amp draw with the new fans? I could buy something being wrong with the harness setup, but again I'm really sick of dealing with this. The damn shop should've resolved this stuff and I got aggravated in May and didn't even bring it back to them. My stance right now is to just leave it be until I have more time and money to deal with it. Aside from the almost stalling or stumbling and the horrible MPG the van runs and sounds like a damn champ. Its just so smooth and a pleasure to drive. I just wish I could lick this damn MPG problem and the near stall issue.
I'm starting to think about replacing things randomly, but trying not to let myself.
Things that come to mind are the coil pack (It looks fine, but I've seen others say so did theirs and their pack was bad), the TPS, the crank or cam sensor, power steering pressure switch/sensor (if this vehicle has one), the FPR, the fuel pump and anything else i haven't replaced yet. Something I haven't replaced has GOT to be the issue.
Also wanted to note. After I redid the negative battery post wires and put in the new dropping resistor the "near stall or stumble" issue seemed to get WORSE! It would cause it to stall out more ..... um.... prominently.... for a lil bit longer and lower on the RPMs.
Lastly, I think I (we) need to entertain the idea that the near stall/stumble is not necessarily related to the radiator fans turning off, but somehow just a symptom of some other indirect issue. It could be the fan circuit etc.. but I want to entertain that possibility that its not related to the fans (IE: possibly fuel or some other electric somewhere).
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1995 3.0L 3000GT NA FWD ATX - ProwlerGT on 3si.org
1995 3.8L Ford Windstar GL
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"I drive the newest 1995 Ford Windstar anywhere..... when its not broken."
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