Erratic gauges -'87 GT

nukeworker · July 20th, 2007, 07:57 AM

Car is bone stock, I am in the process of restoring. Rebuilt engine and trans, body work in progress. I have owned this car since '92, gauges have always been erratic. Volt and Water temp seem OK, oil pressure and especially fuel gauge always erratic. New to this forum, tried posting this question last night but I don't see it yet. Probably been working on cars longer than most of you guys have been alive, but getting too old for blind trial and error. Seems to be a lot knowledgeable and helpful folks on this site. Any suggestions?

gills99stang · July 20th, 2007, 05:57 PM

Are you sure the gauges are good? Are they the original ones?

nukeworker · July 21st, 2007, 01:11 AM

All original dash, gauges have been screwy since we bought it.

neverfastenough1 · July 21st, 2007, 02:05 AM

Check the ground for the gages, but I would suspect the Anti-Slosh Module is bad if they are both doing it. Still could be the gages or sending unit, but the module would be my first guess.

Sorry, and welcome to the site!

nukeworker · July 21st, 2007, 04:30 PM

Thanks for the info, but what the heck is an anti slosh module.

"There are no stupid questions, only stupid people" Right?

neverfastenough1 · July 21st, 2007, 09:51 PM

Originally Posted by nukeworker

Thanks for the info, but what the heck is an anti slosh module.

"There are no stupid questions, only stupid people" Right?

Its a little cumputer board looking thing on the back of your instrument panel. It controls the voltage for your gages I believe. It is about 2"x2" square.

neverfastenough1 · July 21st, 2007, 10:07 PM

Found this thread form another forum. One of the posts tells you how to test the circuits to see if its a gage, sender, or slosh module.

http://forums.stangnet.com/archive/i.../t-449339.html

nukeworker · July 22nd, 2007, 11:09 AM

Great info, thanks! Sounds like you have saved me a lot of work and heartache. Will have the dash out within the next few weeks to replace the heater core, will perform these tests and let you know.
Thanks again,
Terry

neverfastenough1 · July 22nd, 2007, 11:15 AM

Originally Posted by nukeworker

Great info, thanks! Sounds like you have saved me a lot of work and heartache. Will have the dash out within the next few weeks to replace the heater core, will perform these tests and let you know.
Thanks again,
Terry

No problem, hope it works for you. Good luck.

July 20th, 2007, 07:57 AM	#1
nukeworker Newbie Join Date: Jul 2007 Posts: 4 iTrader: 0 reviews	Erratic gauges -'87 GT Car is bone stock, I am in the process of restoring. Rebuilt engine and trans, body work in progress. I have owned this car since '92, gauges have always been erratic. Volt and Water temp seem OK, oil pressure and especially fuel gauge always erratic. New to this forum, tried posting this question last night but I don't see it yet. Probably been working on cars longer than most of you guys have been alive, but getting too old for blind trial and error. Seems to be a lot knowledgeable and helpful folks on this site. Any suggestions?

July 20th, 2007, 05:57 PM	#2
gills99stang Achieving more N/A power! When this baby hits 88 miles an hour... Join Date: Sep 2006 Location: Virginia Beach, Virginia Posts: 3,154 iTrader: 3 reviews	Are you sure the gauges are good? Are they the original ones? __________________ Brendan '99 Mustang GT [ 318 rwhp N/A ] - SOLD () '04 F150 XLT SuperCab

July 21st, 2007, 02:05 AM	#4
neverfastenough1 Hardcore Enthusiast 2002 Mustang GT Join Date: May 2007 Location: Savannah, Ga Posts: 2,789 iTrader: 3 reviews	Check the ground for the gages, but I would suspect the Anti-Slosh Module is bad if they are both doing it. Still could be the gages or sending unit, but the module would be my first guess. Sorry, and welcome to the site! __________________

July 21st, 2007, 10:07 PM	#7
neverfastenough1 Hardcore Enthusiast 2002 Mustang GT Join Date: May 2007 Location: Savannah, Ga Posts: 2,789 iTrader: 3 reviews	Found this thread form another forum. One of the posts tells you how to test the circuits to see if its a gage, sender, or slosh module. http://forums.stangnet.com/archive/i.../t-449339.html __________________

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July 21st, 2007, 01:11 AM	#3
nukeworker Newbie Join Date: Jul 2007 Posts: 4 iTrader: 0 reviews	All original dash, gauges have been screwy since we bought it.

July 21st, 2007, 04:30 PM	#5
nukeworker Newbie Join Date: Jul 2007 Posts: 4 iTrader: 0 reviews	Thanks for the info, but what the heck is an anti slosh module. "There are no stupid questions, only stupid people" Right?

July 22nd, 2007, 11:09 AM	#8
nukeworker Newbie Join Date: Jul 2007 Posts: 4 iTrader: 0 reviews	Great info, thanks! Sounds like you have saved me a lot of work and heartache. Will have the dash out within the next few weeks to replace the heater core, will perform these tests and let you know. Thanks again, Terry

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