View Full Version : Fuel tank
HI guys, I have been having a couple of problems with the fuel tank set up. I purchased a new tank,sending unit and fuel pump from LMR when I built the car, first problem is when the fuel gets to 1/2 a tank the fuel gauge is all over the place. The second issue is about once a year the sending unit seal starts leaking and I have to replace it. What is the opinion of the problem the aftermarket parts or what?
Thanks
Walt
AC Bill
04-08-2017, 04:01 AM
The needle bouncing around is not uncommon. Fuel is shifting around in the tank, and the sender is moving up and down. It sloshs around more, as your fuel is drawn down in the tank.
Ford actually installed an "anti-slosh" module to prevent this. It was mounted in the instrument cluster of the Mustangs. That module will work with aftermarket fuel gauges. You can maybe get one from wrecker, but he may want you to buy the entire cluster. Maybe try the buy/sell on the forums, or perhaps even a Ford dealer.
OK, thanks I will look for one, anybody have a picture of it I think I may still have the cluster from my donor, just need to know what part I'm looking for.
Anybody know if this is the module for the gas gauge?66163
CraigS
04-08-2017, 02:16 PM
I don't have a module in mine. I just know that anything other than standing still or driving straight at a constant speed the gauge isn't accurate. Easy enough.
AC Bill
04-09-2017, 04:19 AM
Anybody know if this is the module for the gas gauge?66163
Yeah that's it. There was an older thread on how to wire them, (which is actually pretty simple), on the FFCars.com forum.
AC Bill
04-09-2017, 04:25 AM
I found a link to one fellows method of wiring the module. A little more elaborate method, but a good idea. The module he is using I believe, is off a 90-91 donor Mustang. It looks just slightly different then yours.
http://www.mycoupe.ca/modules/AMS/article.php?storyid=37
OK, thanks Bill, I study his info and see if it's something I can do.
Walt
This is the module from the 89 do think the terminals would be in the same order as the previous picture from the other forum?
Walt66238
AC Bill
04-11-2017, 03:13 AM
Hmm..I wouldn't count on it being identical.
Hopefully someone may have the correct pin-outs you need for yours. Might want to do a little research on them first.
You could start a new thread, as you might get a better response, IE' "Need help wiring the 89 donor anti-slosh module"