What do you think is up with my tach?? - 460 Ford Forum
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post #1 of 2 (permalink) Old 08-17-2011, 08:20 PM Thread Starter
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What do you think is up with my tach??

I recently locked out my distributor and bought a retard start module to help with starting. The car start fine BUT, when it's running the tach jumps around. When I bypass it, the tach is fine. The tach wire is in the same location never moved!!

When I bypass the module and the car desides to start being that it is advance, the tach is fine.

I know that it has a good ground and my wire connections are very tight. Any thoughts??????

93' LX hatch, 460 with mods and factory heads, TH400 trans, 9" w/ 3.89 spool. Best (so far!) of 10.04 @ 133 mph w/ 1.36 60'
Wanna see a low budget BBF run: (I know..the date trips me out!)

https://www.youtube.com/watch?v=70l4...e_gdata_player
I'm not SAYING, I'M JUST SAYING!!!
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post #2 of 2 (permalink) Old 08-19-2011, 06:22 AM Thread Starter
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After talking with MSD Tech and some testing.......bad retard module. Getting it exchanged.

Heck even the exchanged one did the same. Get this........MSD told me to send the one I have (8982) back to them and they will give me 8987 for an even swap!

93' LX hatch, 460 with mods and factory heads, TH400 trans, 9" w/ 3.89 spool. Best (so far!) of 10.04 @ 133 mph w/ 1.36 60'
Wanna see a low budget BBF run: (I know..the date trips me out!)

https://www.youtube.com/watch?v=70l4...e_gdata_player
I'm not SAYING, I'M JUST SAYING!!!

Last edited by stang93mustang; 09-01-2011 at 04:58 PM.
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