Overflow Tank Wires?

[jzak]

Hey guys,

So I spend today ripping out all the unnecessary wires around my engine. The PO had done a real botch job installing a Howell TBI kit. Instead of removing the old wiring, he simply spliced in the new wires into the old ones. He didn't even bother removing the old wiring harnesses. He just disconnected them and stuffed them all behind the cable loom tubing. I probably took out about 10 harnesses and 20 feet of wiring.

Now that I can finally see the engine, i noticed there are two separate wiring harnesses attached to the bottom of the overflow tank. What possible reason would you need wires going into the overflow tank? Can I just rip them out, or are they essential?

Thanks!

 

[Lumpy Grits]

Look under the tank, and I bet you'll see the ign module.

LG

 

[jzak]

Look under the tank, and I bet you'll see the ign module.

LG

Thanks! I'll get up underneath and take a closer look.

 

[hondo]

is it possibly a repurposed windshield washer tank with pump?

 

[jzak]

UPDATE:

Hey guys!

So I got a closer look the the overflow tank. It turns out the wiring harness wasn't coming out of the overflow tank, but from a metal box that the overflow tank sits on.

I attached a picture of the box below. Still not sure what the hell its for, but maybe you guys know?

Thanks!

 

[jpeck71]

Lumpy Grits was right. That looks like the Ignition control module. Now, whether its still used with the Howell TBI or not I don't know. But it's definitely part of the stock Ignition System. Had to replace mine not too long ago.

 

[RatDog8o8]

Yes, that's the ICM. Mine's on the driver's fenderwell, down near the vacuum canister (firewall side of fenderwell). My washer-fluid bottle is hiding the ICM, as my overflow tank is on the passenger side.

 

[jzak]

Lumpy Grits was right. That looks like the Ignition control module. Now, whether its still used with the Howell TBI or not I don't know. But it's definitely part of the stock Ignition System. Had to replace mine not too long ago.

Thanks Guys!

I'm not ready to rip the thing out just yet, but your right, it does look like the factory ICM.

Maybe some Howell TBI owners could offer some insight? Do I still need this?

Thanks!

 

[GARGOYLEJEEPER]

Has nothing to do with TBI, it is Duraspark dizzy.

 

[Torxhead]

Thanks Guys!

I'm not ready to rip the thing out just yet, but your right, it does look like the factory ICM.

Maybe some Howell TBI owners could offer some insight? Do I still need this?

Thanks!

That is part of your Motorcraft ignition system, it is not tied into your tbi. If your engine starts running crappy, that could be the reason and will need replacing.