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04-28-2012, 01:03 PM | #276 |
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Re: Hanging/Slow dropping RPM FIX inside.
does anyone have this on video? some revs with and without?
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03 azure blue mach1-on3 70mm 459/469 on 6.5 psi Speedy tuned |
04-29-2012, 11:29 AM | #277 |
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Re: Hanging/Slow dropping RPM FIX inside.
I'll try to make a video this afternoon.
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2004 Mach 1 Azure Blue Built 5.0L stroker P1SC w/ supporting mods Promotion 3650 with McLeod RXT clutch/flywheel 31 spline rear end w/ 3.73's JBA shorty headers, Magnaflow catted x-pipe, Borla Stingers |
04-29-2012, 12:52 PM | #278 | |
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Re: Hanging/Slow dropping RPM FIX inside.
Quote:
Revs WITHOUT IAC valve restrictor plate: http://www.youtube.com/watch?v=s-_AL...ature=youtu.be Revs WITH IAC valve restrictor plate: http://www.youtube.com/watch?v=PsvLT...ature=youtu.be
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2004 Mach 1 Azure Blue Built 5.0L stroker P1SC w/ supporting mods Promotion 3650 with McLeod RXT clutch/flywheel 31 spline rear end w/ 3.73's JBA shorty headers, Magnaflow catted x-pipe, Borla Stingers |
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04-29-2012, 06:13 PM | #279 |
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Re: Hanging/Slow dropping RPM FIX inside.
I'm using the NC plate and still get a hanging idle 50% of the time at around 1400, takes more than a few seconds to drop to normal when it does. Is there a real fix for this? My last Mach got the plate and it just worked great, idle dropped fast & hard. tThis one still seems to float even when it drops.
Thanks. |
05-03-2012, 04:03 PM | #280 | |
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Re: Hanging/Slow dropping RPM FIX inside.
Quote:
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2004 Mach 1 Azure Blue Built 5.0L stroker P1SC w/ supporting mods Promotion 3650 with McLeod RXT clutch/flywheel 31 spline rear end w/ 3.73's JBA shorty headers, Magnaflow catted x-pipe, Borla Stingers |
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05-06-2012, 12:11 PM | #281 |
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Location: Rogers, AR
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Re: Hanging/Slow dropping RPM FIX inside.
My mach has this same problem. Ill be driving and then Ill come to a stop and the RPMs will be at 1500, almost 2000 in some cases, and then after sitting there for maybe 4-5 seconds it drops down to like 600 and almost wants to die. Will the NC plate help?
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05-10-2012, 06:18 AM | #282 |
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Location: N.C.
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Re: Hanging/Slow dropping RPM FIX inside.
No.
The restrictor plate is not made to fix idling problems. It is made to force the rpms to drop faster.
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Dennis - 34Ford in other forums. Blue Ridge Mustang Club of Asheville I sell IAC restrictor plates. Here on Ebay |
05-22-2012, 08:34 AM | #283 |
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Re: Hanging/Slow dropping RPM FIX inside.
Just came back to this thread after several years ...
I used to sell these for $4-5 back in the day ... (2005 and prior) |
06-28-2012, 10:27 AM | #284 |
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Location: Montreal, Canada
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Re: Hanging/Slow dropping RPM FIX inside.
Hello. Would the ristrictor plate have any benifit with my auto transmission or it works only for 5 speed trans that have the rpm problem?
Thanks....... |
07-26-2012, 07:14 PM | #285 |
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Location: new haven indiana
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Re: Hanging/Slow dropping RPM FIX inside.
Thank you for the info on the hanging rpm's!I can't wait to get to it.
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08-28-2012, 07:33 PM | #286 |
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Location: Sylvester, Ga
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Re: Hanging/Slow dropping RPM FIX inside.
Thanks so much for this fix! Took literally 45 minutes with this piece of scrap tin i had laying around. Drilled a 7/8 big hole and 5/16 "restricted" hole. Instantly noticed a difference upon test drive. Rpms drop like my last notchback did. Kudos!!
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09-05-2012, 12:41 PM | #287 |
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Location: Midland, Texas
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Redoing The Fix?
I did the fix for the hanging RPM problem on my '03 and it worked great. Not too long after, I put the Diablosport Predator on it and had no issues. A few months ago, I got some bad gas (we think) and pulled the tune off to help with the detonation. The RPMs hang bad now and it seems a million times worse than when I first got the car. Probably my mind playing tricks since the restrictor plate worked so well. Anyway, how do I fix this? The plate is still on there and the RPMs hang just a tad too much to ignore. I mean, it has completed messed with how I naturally drive the car. I'm assuming there's some flashing of the computer, uninstalling, and reinstalling of the plate in order but I just don't know. Can someone help me out?
Thanks.
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No accident that my birthday is March 1st. Take out the 'r' and you end up with.... 2003 Torch Red Mach 1 ★ Rebuilt 3650 & MGW ★ Spec 2 & Fidanza flywheel ★ H&R Super Sports & Maximum Motorsports struts/shocks ★ Maximum Motorsports rear lowers, MM panhard, MM caster camber plates ★ Mosers + ARPs ★ Brembo slotted rotors, braided lines ★ Catless X and SLP LM2s ★ 18X9/10.5 - Toyo R888R |
09-05-2012, 12:57 PM | #288 | |
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Re: Redoing The Fix?
Quote:
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09-05-2012, 02:44 PM | #289 |
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Ahh gotcha, thanks. I'm assuming the plate stays in? And does it matter if/when I put the Prefator back on? Thanks.
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No accident that my birthday is March 1st. Take out the 'r' and you end up with.... 2003 Torch Red Mach 1 ★ Rebuilt 3650 & MGW ★ Spec 2 & Fidanza flywheel ★ H&R Super Sports & Maximum Motorsports struts/shocks ★ Maximum Motorsports rear lowers, MM panhard, MM caster camber plates ★ Mosers + ARPs ★ Brembo slotted rotors, braided lines ★ Catless X and SLP LM2s ★ 18X9/10.5 - Toyo R888R |
09-12-2012, 12:51 PM | #290 |
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Re: Hanging/Slow dropping RPM FIX inside.
Mine did the same exact thing until I decided to replaced the IAC with a new one from Ford for about $100 or so. I cleaned the original IAC with brake part cleaner, but still didn't work. I guess it was real sticky?
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2003 OW mach1...under construction. |
10-14-2012, 05:15 PM | #291 |
Will sell tires 4 food.
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Location: St. Peters/Louis, MO
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Re: Hanging/Slow dropping RPM FIX inside.
Awesome little mod, can't believe I waited so long to do it!
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I think the mach1 needs an alignment, the rear tires wear out way faster than the front. |
10-26-2012, 10:26 PM | #292 |
R Coded
Join Date: Oct 2012
Location: Clinton IL
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Re: Hanging/Slow dropping RPM FIX inside.
Glad i stumbled on this thread. I've had my auto mach about 3 weeks or so, only driven it a few times. Every first startup this thing fires up aggressive and just stays there like 10-15 seconds it seems(prob a little exaggerated,lol), then finally comes down to idle. I'm always like wtf, thats a bit much and annoys the **** outta me,lol. Def. making one of these tomorrow!
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10-27-2012, 06:00 PM | #293 |
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Join Date: Oct 2012
Location: Clinton IL
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Re: Hanging/Slow dropping RPM FIX inside.
Liked the way the rpms dropped to idle with the 9/32 hole, just not how it idled with max a/c on. So i opened it up to 11/32, its better with a/c.....but not how i liked it dropping with the 9/32 hole. Amazing how much it changes with a 1/32 of an inch!
*Edit..... after further review, the call on the field has been overturned! 11/32 hole is working great like had hoped. Last edited by NoSloCoupe; 10-31-2012 at 02:52 PM. |
05-09-2013, 07:32 PM | #294 |
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Re: Hanging/Slow dropping RPM FIX inside.
I see this is an ancient thread, but I got mine from SR Customs off ebay, not sure of the hole size (though both holes were the same size). I like it!! It isn't an in your face difference, when I first crank car, rpms drop much quicker, idles steady and smOoth at 800 rpms (notice rpm steady, but shaker is moving more like a cam installed, again subtle). Turned on A/C and headlights, idle dropped to 700 and stayed between 700 and 750 rpms, everything is real smooth and steady. When I bump the throttle to 2-3k and let off, revs drop quicker, but again it isn't massive (reading all the post I think where I got mine the hole size must be conservative), but overall, I like it and for $6.30, a bargain and worth a risk, I brought the original gasket and an 8 mm wrench with me in case I had to swap back, but zero issues, though I only got about 125 miles on 1/2 tank , could be the 4:10 gears and my right foot , don't really see how this could affect gas mileage (????), but in general pretty easy mod that works as advertised, don't find that very often nowadays. My two cents, have a nice evening everyone!!
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2003 DSG Mach 1-03 Cobra Term/T56 swap: 2.3L Whipple,3.37 Upper,4 lb.lower, ID 1000 injectors,LCD cooling mod,Billetflow idlers,200A Alt,oil cooler delete with MMR adapter plate,MM oil filter kit,FrozenBoost Heat Exchanger Flowtech L.T., Maganaflow O/R X with Magnapacks, FRRP D.S.,T-56 with 26 spline input shaft and anti venom mod with reverse lockout box, FR steel flywheel,Spec Stage 3+,Moser 31 spline axles,FR 3.73 gear Tuned by B.Kurgan 601Hp/558/Tq |
10-19-2015, 02:15 PM | #295 | |
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Re: Hanging/Slow dropping RPM FIX inside.
Quote:
- Let the car idle and get up to normal operating temp. I wait until my fan comes on in the summer months. - Then wait at least 1 minute after reaching normal operating temp. - Turn on the AC to Max and let idle at least another minute. - The turn off the AC and go for at least a 10 mile drive. I usually cruise around for 10 - 15 miles, then do one or two WOT's. The computer will still continue learning idle, but you should notice a big improvement from when you first started it up. I do this any time I change my tune, or when the mechanic I go to disconnects the battery for any reason.
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12-19-2017, 11:10 PM | #296 |
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Join Date: Dec 2017
Location: Ms, Gulfcoast
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Re: Hanging/Slow dropping RPM FIX inside.
This is on my to do list now, sorry to bring back this old thread but this is good info for us newbs.
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12-30-2017, 05:49 PM | #297 |
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Join Date: Dec 2017
Location: Ms, Gulfcoast
Posts: 128
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Re: Hanging/Slow dropping RPM FIX inside.
So I did this mod today, didn't use a metal plate but picked up one made out of mr gasket header gasket material, it came with 9/32 and 11/32 holes and immediately when we started the car up I could tell a difference, rpms come down much faster and the car kind of sounds like it has a mile cam now @ idol. Was not able to test drive the car but maybe tomorrow early before the N.Y.E. crazies hit the roads.
Thanks for this awesome info |
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