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Old 03-24-2012, 11:47 PM   #1
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You guys with tuners

My question if for you guys that have used a tuner on your car. Ford in all their wisdom put a shifting aid into the computer where when you press in the clutch, the computer automatically rev's up the motor a few hundred rpm to help the tranny sync better. Then only problem is that it makes it more of a pain especially with an aluminum flywheel. My question is with programming a mustang with a tuner does it/can you eliminate that annoying over revving?
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Old 03-25-2012, 12:19 AM   #2
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Re: You guys with tuners

No, not that I know of. That sounds like something I only have experienced a couple of times when a tune was just installed/computer reset or when AC is on.
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Old 03-26-2012, 12:12 AM   #3
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Really? Crap cuz my car does it and it's freaking annoying. Maybe I'll just try the tune.
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Old 03-26-2012, 03:32 AM   #4
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Quote:
Originally Posted by Kingmidas87
Really? Crap cuz my car does it and it's freaking annoying. Maybe I'll just try the tune.
Sounds like a vacuum issue. None of my mustangs ever did that at all. the revs hang a little but it never revs up. That said after my tune It hangs up less.
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Old 03-26-2012, 03:43 AM   #5
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mine those not do that but thats exactly what I want it to do because I drive regular driving just cruzing and like to just shift normal not quickly because my rpm drops fast, like if something was draging the car or something, I try adjusting the idle at drive to 1900 at lease but nothing its till drops quickly can't drive it comfortably
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Old 03-26-2012, 05:33 AM   #6
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Re: You guys with tuners

It is your IAC valve that holds the RPM for a few seconds after you let off the throttle.

You can remove the annoying "hovering" rpm-crap by making a custom gasket with smaller holes in the top and bottom.

There are instructions out there on the interwebz, I have seen them, but haven't done anything with it yet.

Personally I find it to be extremely annoying most of the time...

So to answer your question... No, I tuner can't help with this.
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Old 03-26-2012, 11:38 AM   #7
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Thanks for the input. Yeah it's very annoying! I'll look into that valve then an do a little mod on it
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Old 03-26-2012, 09:06 PM   #8
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Why would ford want it to rev except maybe for down shifts for upshiifts this would do more harm then good owe and. I have a 1999 c6. Stock and it dosn't do that
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Old 03-26-2012, 11:39 PM   #9
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Well my buddy has a stang same year as mine and his does it too so he went to ford and the guy there told him that. He said the computer does that on purpose, but after reading about it online turns out its just from the IAC(idle air control) valve. This website says after 75k these valves tend to get clogged up and either need to be cleaned or replaced. I'm just gonna go ahead and replace the whole unit, checker auto has one for about 95 bucks.

---------- Post added at 10:39 PM ---------- Previous post was at 10:38 PM ----------

Also thanks to Just_john for bringing this to my attention.
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Old 03-27-2012, 02:30 AM   #10
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my opinion here about the valve if you say the rpm is at that, if the valve was clog or bad you would have a bad low idle and will mayb woulnd start at all that's the symptoms of a bad idle control air valve all explorers and mustang suffer from that, so if you unplug it the car won't start because is closed just like if it was clogged up
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Old 03-27-2012, 10:37 AM   #11
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The website also said it can cuz rpm surges and that's what mine is doing. Like when I first start it up it will normally be high then rev down and stay that way but sometimes after it rev down the motor will (for a lack of better words) "gasp" for air and rev up again. This happens frequently outta no where so I figured I'll replace the valve anyway, being the car has over 100k, and see what it helps.
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Old 03-28-2012, 06:49 AM   #12
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Re: You guys with tuners

It can never hurt performing a quick Seafoam treatment. I guarantee that it will help in some way if not completely. Put a straw inside and suck it out with the pcv valve. Put 2nd can inside gas tank. Trust me, you'll like the results.
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Old 03-28-2012, 06:57 AM   #13
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yeah I lov that stuff but do recommend to add the second bottle in tank if tank is full, I add some seafoam last year whit half a tank and it was to much seafoam my car pop couple check engine codes related to o2's and was to rich went I took off the sensors and spark plugs they were red colord don't know why but that was a day after the seafoam I recommend half a bottle in tank and full tank before, the other half in pcv and motor oil then oil change after it
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Old 03-28-2012, 09:08 AM   #14
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Re: You guys with tuners

I believe your issue is the idle bypass might need cleaning~ it controls idle rpm aka when the car is in neutral (clutch in) my old 01 V6 had issues with it... it would die sometimes. I also have had the rpms jump up as you said (idle decay rate in the tune) its one or the other.

Try cleaning the IAC (little cylinder round thing on upper intake near throttle body) or replacing it if its cheap enough. Might help might not~ but a good step.

Then clean the maf sensor VERY good with on contact NO RESIDUE electronics part cleaner.
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Old 03-28-2012, 11:03 AM   #15
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Yeah maybe I'll clean it and run sea foam thru it. Or I'll just replace it and still run sea foam. I've used Combustion Chamber Cleaner from a dodge dealership in the past and loved it. Comes in a spray can with the wd40 style little hose, I always just loosened the intake tube and slipped the hose in by the throttle body. Cleaning the MAF sounds like a good idea, you have a spray you recommend?
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Old 03-28-2012, 09:05 PM   #16
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Re: You guys with tuners

Yeah, The Seafoam treatment or some BG 44K is a good idea when diagnosing any issue simular because it helps put you on an even par to help eliminate any second guessing, you know what I mean?
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Old 03-28-2012, 09:12 PM   #17
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Quote:
Originally Posted by robb15033
Yeah, The Seafoam treatment or some BG 44K is a good idea when diagnosing any issue simular because it helps put you on an even par to help eliminate any second guessing, you know what I mean?
Where can u find by 44k? Been looking everywhere and I can't find it!
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Old 03-28-2012, 09:26 PM   #18
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Re: You guys with tuners

We have it here in NAPA and all the private owned parts store. You will have no problem buying it from the Ford dealership or any service shop in your area. Most all shops now use BG equipment for flushes and service & they will have it.
The easiest way to find out is go to the BG website and you will see "Find A BG Shop In Your Area"- Let me know-
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Old 03-29-2012, 03:58 AM   #19
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Re: You guys with tuners

44K? Ebay has listings for it all the time... and the prices are actually decent.
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Old 03-29-2012, 05:15 AM   #20
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Re: You guys with tuners

There you go! FYI: They are making an induction cleaner now that you use the same way as Seafoam too.
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Old 03-29-2012, 04:12 PM   #21
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I've heard mixed opinions of tuners so I am curious.... Are they worth getting for the 95 obd2 set up?
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Old 03-29-2012, 05:09 PM   #22
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They are worth getting for any setup.
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Old 03-29-2012, 05:12 PM   #23
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Any downsides to them? I've been thinking about the SCT one but not sure about it.
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Old 03-29-2012, 05:50 PM   #24
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Only downside is they cost almost 400. I bought one for my mustang, and another one for my 5.0 explorer. I'm very happy with them and will make sure I have one for any future vehicles. I've seen more power and better fuel economy from both vehicles. Not to mention they will let you get the most out of any mods you do.

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Quote:
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Only downside is they cost almost 400. I bought one for my mustang, and another one for my 5.0 explorer. I'm very happy with them and will make sure I have one for any future vehicles. I've seen more power and better fuel economy from both vehicles. Not to mention they will let you get the most out of any mods you do.
I recommend SCT hands down. My father has a bullydog for his 7.2L F250 and some other brands for his jeeps, and I don't care for em. Bang for you buck doesn't seem as nice vs the SCT.
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Old 03-29-2012, 05:58 PM   #25
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I've been watching eBay and craigslist for them. Was thinking about the big one that's like 800 bucks. Wish I could have it to where it doesn't lock I run a shop I could use to make tuning adjustments to some of the cars I've modded
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Old 03-30-2012, 12:01 AM   #26
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Quote:
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I've been watching eBay and craigslist for them. Was thinking about the big one that's like 800 bucks. Wish I could have it to where it doesn't lock I run a shop I could use to make tuning adjustments to some of the cars I've modded
Your probably why they made them locked
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Old 03-30-2012, 01:45 AM   #27
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Re: You guys with tuners

A dyno tune would benifit you most. Cheap when you buy the tuner from the shop. $500.00 for a tuner and dyno tunes.
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Old 03-30-2012, 06:48 AM   #28
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Quote:
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Your probably why they made them locked
Probably buy hey you can't say you wouldn't try to make some cash off it if you could

---------- Post added at 05:48 AM ---------- Previous post was at 05:48 AM ----------

Quote:
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A dyno tune would benifit you most. Cheap when you buy the tuner from the shop. $500.00 for a tuner and dyno tunes.
I'll look into that. Thanks for the advice
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Old 04-05-2012, 05:21 PM   #29
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Well just put in my new IAC valve and it didn't really do anything to that hovering idle. It have helped the surges but when I'm coasting down the road it still floats at 1200 rpm untill I stop.
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Old 04-05-2012, 06:05 PM   #30
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Well just put in my new IAC valve and it didn't really do anything to that hovering idle. It have helped the surges but when I'm coasting down the road it still floats at 1200 rpm untill I stop.
My 95 does that. Never caused a issue for me. I wouldn't sweat it.
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Old 04-05-2012, 06:09 PM   #31
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It's just annoying. Should I be looking for a vacuum leak?
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Old 04-05-2012, 10:39 PM   #32
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You can check for one but I haven't found one yet on mine
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Old 04-05-2012, 11:43 PM   #33
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Well I just got back in from unhooking my battery for a half hour to let the computer reset and took a can of carb cleaner to the throttle body and sprayed a bunch of gunk out of it. But before all that I warned it up a felt the EGR, apparently if the EGR is bad then it will get really hot fast. Mine was barely warm so that's good. While the car was running I also sprayed different parts of vacuum hoses to see if I had a leak but nothin. After all this I did help a bit with the surging rpms when you shift but the "floating" rpm when you're coasting still stays at 1100 unroll you stop.
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Old 04-06-2012, 12:13 AM   #34
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Re: You guys with tuners

No trust in my Seafoam treatment advice? One can in gas tank, second can sucked up pcv valve slowly while car is running. It's a $7.00 investment. Good luck with it though-
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Old 04-06-2012, 12:17 AM   #35
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That's what I'm gonna try next. Do you just pump in thru that driver side? Or the one that tube that goes into the intake?
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