Anti-slosh module question?

larrym1961

5 Year Member
Dec 18, 2010
570
36
49
Idaho Falls Id
I thought maybe my module has gone bad, since I was having an issue with my feul gauge not reading the correct fuel level. After filling the tank, It would stay on the full mark until I had 3/4 a tank or less then read correctly. So when I stepped up to a larger pump I also replaced the sending unit thinking that may have been the issue, and that did not correct the problem.

Since new modules are no longer available for 87 - 89 instrument pannels, I bought a used instrument pannel for an 87-89 Mustang. This one came out of a GT. I noticed the module was a little different that the one out of my Mustang. Can I switch the the "new" old module for the one I have now? Are the 87-89 ones interchangable?

I also installed the used instrument pannel into my car to see how that one worked. I filled my gas tank the other day so I know I have a full tank. My original feul gauge shows I have a full tank, but with the other instrument pannel installed the needle goes to empty, The complete oposite, what is up with that?:shrug:

Can any one tell me what is going on here?