BWD Ignition Control Module

[joereef]

anyone using BWD Ignition control module with good results. I've bought 2 used dis from sho source but they don't last. oreilly auto parts sells them for 156.99 lifetime warranty. Thanks in advance
I also plan to change the connectors with new ones.

 

[AREA 91]

anyone using BWD Ignition control module with good results. I've bought 2 used dis from sho source but they don't last. oreilly auto parts sells them for 156.99 lifetime warranty. Thanks in advance
I also plan to change the connectors with new ones.

Why are the used ones failing?
Are you using a heat since compound on the back of them before installation?

 

[jimtash]

You can get a better price than that. Advance is $90.00 and with a coupon will run you around $60.00. Autozone is also $90.00 and with a 20% off coupon will run you around $70.00. Both are BWD with lifetime warranties.

Always go with lifetime warranties on parts when you can. And always shop around for coupons. It's foolish to spend money when you don't have to.

Finally, make sure you use the heat sink on the back of the module.

 

[SHOdded]

Computer heatsink paste works well, do NOT use dielectric grease.

 

[Off Road SHO]

Computer heatsink paste works well, do NOT use dielectric grease.

Okay, I have to ask why you think that. Dielectric paste or grease just doesn't conduct electricity, just like most heat sink pastes. Both conduct heat away from the heat sink plate of the DIS module. Both keep water from getting between the the two surfaces.

There is a rumor that has been promoted here that the DIS is grounded through the plate surface. It is not. It is grounded through the screws, two I believe, that hold the DIS to the cross over plenum. No amount of any grease is going to keep the threads of those two screws from grounding out the DIS.

The most important job of that grease, paste, is to make sure that any heat generated by the components within the DIS is dissipated into the crossover tube, which is always at ambient temperature, AND, to keep any air, that might have moisture in it, from getting in between the two aluminum surfaces. If that happens, corrosion starts and what do you know, corrosion doesn't transfer heat very well. Keep the water out with anything that doesn't evaporate, like grease or paste.

And by the way, before applying the grease to aluminum, clean off any oxidation you already have on the two surfaces. Oxidation, like rust has moisture in it and applying grease over the top of it only guarrantees that the oxidation will continue.

Tom

 

[SHOdded]

It is for the superior thermal conductivity that I was recommending the heatsink paste over the dielectric grease. Not that dielectric grease does not conduct heat, but its' primary purpose is electrical insulation. It will resist thermal breakdown, but will it transfer heat away? That is why heatsink paste formulations exist.

 

[Devin]

Officially we are supposed to use dielectric. Not that it means something else won't work better, but that is what is specified.

REMOVAL


1.Identify, then disconnect electrical connectors from DIS ignition module assembly by pushing down on the connector locking tabs. Tabs are marked push.
2.Remove three retaining screws, then the ignition module from the lower intake manifold.

INSTALLATION


1.Apply a 1/32 inch coat of silicone dielectric compound or equivalent to the mounting surface of the DIS module.
2.Mount the DIS module to the intake manifold. Torque bolts to specification, refer to SPECIFICATIONS .
3.Connect electrical connectors to ignition module

Though it does say: or equivalent...

 

[Devin]

See the attachment for grounding locations.

 

[joereef]

DIS trouble

I bought the car with a bad DIS, replaced it with a used one and lasted 8 months and started missing again. Replaqced that one with another used one, it lasted 2months. I might as well bought a new one. Bwd makes their own version which they warranty for 5yrs. They also make a duplicate version of the motorcraft one and only warranty it for 1 yr. because of the poor heat sink capabilities. They die from too much heat. And yes I used thermal paste, the best Fry's electronics sells. It is better than dielectric grease. BWD sells thermal paste. I live in Los Angeles and there is no Advance Auto anywhere around. Every body has about the same price. The cheaper ones don't have lifetime warranty. Thanks Guys

P.S. the two bottom screws are the grounding screws. It has nothing to do with the aluminum back plate. BWD uses copper for their version because it transfers heat better.

 

[SHOdded]

Advance has free shipping to your home for orders over $75 (net before taxes, I think).