EEC relay

K

KMT

Registered User
This pic is of the power dist. box (fuses and relays) under the hood, near the battery, on my 1990 35th Anny SC - no EEC relay. No EEC relay in the fuse block under the left side of the dash either...

I'm guessing at the EEC behind the glove box maybe.

Where else would I look, thanks.

<a href="http://picasaweb.google.com/KentidCN/35thAnniversaryFordThunderbirdSuperCoupe/photo#5179157143618677970"><img src="http://lh5.google.com/KentidCN/R-AP-1VRbNI/AAAAAAAACWI/Hr7MlHv-oOA/s800/Fuses_relay_underhood.jpg" /></a>
 
Hmmm

If you notice the * it says all except SC . I would then assume there isn't one on the superchargered ones.:)
 
Searching here reveals for my SC, the EEC relay is inside the IRCM - which the component locater shows as being between the air filter and behind the pass. side headlight - what fun.
 
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Yes the EEC relay for the earlier models is in the IRCM. Yes the EEC relay for the 94/95 SC is in the fuse box. The IRCM is not difficult to remove. Do you have a specific poblem you are trying to solve?
 
birds4us said:
Yes the EEC relay for the earlier models is in the IRCM. Yes the EEC relay for the 94/95 SC is in the fuse box. The IRCM is not difficult to remove. Do you have a specific problem you are trying to solve?
Click to expand...

Thanks, yes. Occasional hard/no start...rough idle...stall and/or stumble when driving w/loss of tach signal. Fires and runs great on next try. Can go a month ok, then act up for a few days then ok again for weeks.

I brought the TPS into spec, swapped DIS & camshaft sensor and tried to tidy up various connections/grounds. Crank sensor is next up for inspection. Fuel filter is new. Ignition switch is new. Battery terminals are new.

Is the entire IRCM solid state? Can the rivets be drilled out and the guts inspected? Is there a method to test/t-shoot other than swapping out?

Ken
 
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Dielectric grease is not a heat sink, and if anything will block the transfer of heat. You can get the white heat sink goop from places like radio shack etc. as its the same stuff used between the cooling fans and computer processors. Use a very thin layer.

I wouldn't be surprised if your overheating the DIS and that will cause issues like your describing.

Fraser
 
fturner said:
Dielectric grease is not a heat sink,
Click to expand...

Computer heat paste is not designed to work at the temps seen underhood. A DIS can easily run at 175 deg. F. Computers shut down before reaching 140 F and run closer to 105 F.

Dielectric is the recommended material, used by the factory and service depts. etc. Anything else is just a myth, sorry :)
 
I'm running the correct stuff in my car which surprisingly is heat sink compound used in both automotive and computer situations which is the same stuff they use at Ford for the DIS modules... and surprise surprise, its not dielectric grease. Others have succesfully used Artic Silver as well and cured alot of problems.

but whatever, you obviously know best ;)
 
Artic Silver seems to be the choice for most of us.....

I have used it with no problems on quite a few SCs and XR-7s......

At $12.00 / tube, it better work.......:p
 
Arctic Silver 5 is rated at -58F to 356F short term and -58F to 266F long term more than enough to be used under a DIS. And I agree....heat sink compond is what is specified in the shop manual and what should be used NOT Dielectric Grease.
 
Duffy Floyd said:
Arctic Silver 5 is rated at -58F to 356F short term and -58F to 266F long term more than enough to be used under a DIS. And I agree....heat sink compond is what is specified in the shop manual and what should be used NOT Dielectric Grease.
Click to expand...

Most people I know use the Dielectric grease. Where can I get the Artic Silver?

Ken
 
die electric does not transfer heat!!

its the wrong thing to use Period!!

heat sink tape or paste is what should be used.

Ive used arctic silver and it works best that Ive found.

but what do i know ?

Ive never seen anyone beside you say die electric should be used and i have many friends who work as ford techs and one of my Buddy's works for SVT and he says they never used die electric on any fords. where did you get your info from?
 
Duffy Floyd said:
Radio Shack sells it. I wouls assume computer stores would have it too.
Click to expand...

The stuff Radio Shack sells is generally not Artic Silver. NewEgg sells computer supplies.
The stuff at RadioShack is fine, but not as good at transfering heat. OCZ also sells a heatsink compound that is excellent. It's a copper color however.


BTW: The dialelectric grease is a misprint if I remember right. My guess is your looking at a Hayne's manual? My Ford CD says heat compound, and gives a part number.
 
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