gauges sweep on startup - 2003-04 Mach 1 Registry Owners Club

Stopsign32v · 11-26-2012, 09:19 AM

What's that mean? It's never done that before but now its doing it every start up.

DSG2003Mach1 · 11-26-2012, 11:22 AM

... Battery is weak, usually means time for a new one

Stopsign32v · 11-26-2012, 01:05 PM

Wonder how long I have before click click

1badautogt · 11-26-2012, 01:10 PM

Just means that battery voltage is falling to the point the module is going to sleep while cranking.. So when you let go of the key and voltage comes back up the module wakes up and does a guage sweep.. Could mean a battery getting weaker, or could be cranking voltage falling lower than normal which happens in colder weather for sure.. but the sweep is a self test it performs when it wakes up.. Should do it when you turn the key on too

Stopsign32v · 11-26-2012, 01:48 PM

Just went to lunch and it didn't do it. Only difference is this morning it was in the 30s and now its high 50s.

NativePony · 11-26-2012, 02:14 PM

Just like it was mentioned above. It's your battery. Mine kept doing it on my 04 Mach and it eventually pegged up around 5000 rpm and wouldn't come down. The engine was not revved that high but the instrument cluster was. It stayed like that about a day before it reset itself. I ended up replacing the entire instrument cluster and found out that all I needed was a battery!

Sburns04 · 11-26-2012, 02:55 PM

Mine dose the same thing, im going to advance auto tomorrow and let them test the battery, then i'll know if its time for one of those fancy optima batteries

Stopsign32v · 11-26-2012, 03:36 PM

Also when I start the car up the gauges take about 2 seconds to register the car has started. ?????????

jaimoe · 11-26-2012, 03:52 PM

Most definitly the battery. Take this opportunity to put in an Optima. Best move you will ever make battery wise.

DSG2003Mach1 · 11-26-2012, 03:59 PM

Quote:

Originally Posted by jaimoe

Most definitly the battery. Take this opportunity to put in an Optima. Best move you will ever make battery wise.

I had 3 that were all pieces of ****, they seem pretty hit or miss. For a while Advance/Discount was replacing the replacements if they died within the warranty period even on swap outs, now that they stopped doing that I wont buy another Optima any time soon.

If you do get an optima check the directions and make sure you have a charger with the proper setting or it will kill the battery

Zack · 11-26-2012, 05:48 PM

Get a Motorcraft BXT-850.
You have to mod the battery tray a little but it fits.

Stopsign32v · 11-26-2012, 10:12 PM

Quote:

Originally Posted by jaimoe

Most definitly the battery. Take this opportunity to put in an Optima. Best move you will ever make battery wise.

Been there done that, worst mistake I ever made as far as batteries go.

I'm going light weight battery gents!

11lbs

XSELLR8 · 11-26-2012, 11:25 PM

Does the car sit in the garage for most of the time like mine? Mine does the sweep if its been sitting too long. I need a battery tender!

11-26-2012, 09:19 AM	#1
Stopsign32v Registered User Join Date: Nov 2007 Location: Greenville, SC Posts: 2,554	gauges sweep on startup What's that mean? It's never done that before but now its doing it every start up. __________________ 03 white Mach1 JLT RAI \| 1/2 spacer \| Catback \| 4.56s 7.76@87.8mph

11-26-2012, 11:22 AM	#2
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: gauges sweep on startup ... Battery is weak, usually means time for a new one __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

11-26-2012, 01:05 PM	#3
Stopsign32v Registered User Join Date: Nov 2007 Location: Greenville, SC Posts: 2,554	Re: gauges sweep on startup Wonder how long I have before click click __________________ 03 white Mach1 JLT RAI \| 1/2 spacer \| Catback \| 4.56s 7.76@87.8mph

11-26-2012, 01:10 PM	#4
1badautogt Registered User Join Date: May 2006 Location: ... Posts: 280	Re: gauges sweep on startup Just means that battery voltage is falling to the point the module is going to sleep while cranking.. So when you let go of the key and voltage comes back up the module wakes up and does a guage sweep.. Could mean a battery getting weaker, or could be cranking voltage falling lower than normal which happens in colder weather for sure.. but the sweep is a self test it performs when it wakes up.. Should do it when you turn the key on too __________________ facebook.com/modmafiaperformance

11-26-2012, 01:48 PM	#5
Stopsign32v Registered User Join Date: Nov 2007 Location: Greenville, SC Posts: 2,554	Re: gauges sweep on startup Just went to lunch and it didn't do it. Only difference is this morning it was in the 30s and now its high 50s. __________________ 03 white Mach1 JLT RAI \| 1/2 spacer \| Catback \| 4.56s 7.76@87.8mph

11-26-2012, 02:14 PM	#6
NativePony Girls Drag Race in Heels Join Date: Jan 2008 Location: Pembroke, NC Posts: 531	Re: gauges sweep on startup Just like it was mentioned above. It's your battery. Mine kept doing it on my 04 Mach and it eventually pegged up around 5000 rpm and wouldn't come down. The engine was not revved that high but the instrument cluster was. It stayed like that about a day before it reset itself. I ended up replacing the entire instrument cluster and found out that all I needed was a battery! __________________ Cheryl's 2004 Mach 1 Eaton Swapped Stock Pulley,8lbs of boost: 431/406 Conservative Tune 2.9 Pulley, 11 lbs of boost: 487/490 Conservative Tune Installed and Tuned by Fastlane Motorsports Exhaust: Bassani offroad x, Bassani Midlength Headers, Flowmaster Catback, JLT Fenderwell Cold Air Intake, 4:10 Gears, Caster Camber Plates, Steeda Sport Springs, 17x9/17x10.5 Chrome Bullitt Rims

11-26-2012, 02:55 PM	#7
Sburns04 Registered User Join Date: Feb 2012 Location: Charlotte NC Posts: 145	Re: gauges sweep on startup Mine dose the same thing, im going to advance auto tomorrow and let them test the battery, then i'll know if its time for one of those fancy optima batteries

11-26-2012, 03:36 PM	#8
Stopsign32v Registered User Join Date: Nov 2007 Location: Greenville, SC Posts: 2,554	Re: gauges sweep on startup Also when I start the car up the gauges take about 2 seconds to register the car has started. ????????? __________________ 03 white Mach1 JLT RAI \| 1/2 spacer \| Catback \| 4.56s 7.76@87.8mph

11-26-2012, 03:52 PM	#9
jaimoe Speed addict Join Date: Apr 2007 Location: Miami, FL Posts: 648	Re: gauges sweep on startup Most definitly the battery. Take this opportunity to put in an Optima. Best move you will ever make battery wise. __________________ Best time 1/8th mi--7.65@90MPH 2003 DSG Mach 1 99/01 Cobra front bumper Darrin-Matic w/3500 stall converter 100 Shot 4.10 Gears Stock Springs KYB AGX adjustable shocks/struts tubular LCAs UPR dbl adj UCAs Custom SCT Tune 255/40/18 front 295/35/18 rear FR500 Wheels Custom RAI UPR O/R X-Pipe Roy spacer Flowmaster 40's I may not be as good as I once was, but I'm as good once as I ever was." "Just an old man having fun"

11-26-2012, 05:48 PM	#11
Zack Registered User Join Date: Feb 2008 Location: St. John, IN Posts: 689	Re: gauges sweep on startup Get a Motorcraft BXT-850. You have to mod the battery tray a little but it fits.

11-26-2012, 11:25 PM	#13
XSELLR8 Mach-o-holic Join Date: May 2010 Location: La La Land Posts: 1,276	Re: gauges sweep on startup Does the car sit in the garage for most of the time like mine? Mine does the sweep if its been sitting too long. I need a battery tender! __________________ 2003 Mach 1 TR 5 Speed IUP Bolt ons: You name it! 4.10s too 2004 Cobra Screaming Yellow 2.3L Whipple Gear install vid https://www.youtube.com/watch?v=tJrAIDCpbDI Clutch Replacement Vid http://www.youtube.com/watch?v=UFr0Rur_EWc Wideband Install Vid http://www.youtube.com/watch?v=GmL1KBmWyhg

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