A problem with the EEC module fuse in 95 tour - Page 2

Selectron · #16 03-28-2008, 10:09 AM

Oops, there was a flaw in the method in my previous post because the switched contacts of the PCM relay would not have had continuity during testing (because the relay coil would not have been energised). I'll edit the post to take account of that.

Edit: Ok, that's now been done and the amended method will work.

fastasshell · #17 03-29-2008, 03:21 AM

thanks!

fastasshell · #18 04-04-2008, 12:31 AM

I will get back to you on this when i get to working on the contour. But for now i have to get my truck up and going. I will get back on the ford contour soon. and Thanks again.

fastasshell · #19 06-01-2008, 10:14 PM

Now back to this ford of mine. Im tired of the grass growing up around it. Ok the last time i had a post on this car it would start. A week after that i went to start it to move it to a diffrent spot in my yard and it would crank over but it would not start. so the only thing that i can think of was that it was not getting any fuel.well after it not starting i just left it sit and i took the batt out of it. Now just yesterday i took out the pcm/brain box whatever they call them. just for the reason that i think it might be some of the cause of my problems. NOW with the pcm out i took a look at the back of it. And it has a ticket on the back side of the pcm. Its from cardone industries and done by autozone. so it looks like autozone has had this part at one time. so it must have went bad before on someone. Now my Question is that if the person that own the car before. Had problems with the car because of the bad wiring harness. And fix the car by putting in a reman pcm but did not fix the problem of the bad wiring harness. so now the pcm has went bad again. Just looking for a reasonable metod on this car of mine. Its about to goto the scrapyard.

Selectron · #20 06-02-2008, 04:48 AM

The PCM may indeed have been faulty and been replaced by a previous owner, but it's also possible there was nothing wrong with it but they had problems with the wiring harness and simply replaced the PCM in the hope that it would fix the fault - it really isn't possible to say for sure.

It also isn't possible to say if your PCM is faulty right now, because there's a big question mark over your wiring harness, and that would need to be in good working order - no short-circuits and no open-circuits - before you could do any meaningful testing on the PCM itself.

Because the vehicle was blowing the EEC fuse, we know there's an intermittent short-circuit somewhere and there's a very high probability that the problem is in the harness, although I've read that the wiring in the vicinity of the fuse panel can also be a problem on these vehicles.

Either way, the first thing that would need to be done would be a thorough testing of the relevant sections of the harness, checking both for open and short circuits (short-circuits both to chassis and between adjacent wires) and that would be laborious and time-consuming, and then the fuse panel would require removal and inspection.

The car is fixable, but it would take time, patience, a multimeter, and a reasonable level of electrical knowledge. There was a recent thread regarding a similar problem and you'll see that even the Ford techs struggled to make an effective diagnosis and repair - it really is a tricky problem to deal with.

I'd strongly advise against replacing the PCM at this stage because I think that's unlikely to be the problem, and even if it is the problem, well even if you put a new one in then it would be likely to fry again soon enough unless the wiring harness is dealt with.

Selectron · #21 06-07-2008, 10:55 AM

I'm sure I remember reading that there are (or were) replacement harnesses available from at least a couple of different sources, at different prices. You might want to look into it and get a price on the ones which you might need to replace. If you wouldn't be too keen to do the replacement yourself, you might want to get a price for fitting-only from a specialist auto-electrical shop, if you supply the harnesses. I'd visit contour.org first and get opinions from other owners who have already been through the replacement process. It's difficult to believe that a company which has been around as long as Ford could make such a major blunder.

fastasshell · #22 06-07-2008, 03:17 PM

I hear that. And thanks for your time and help i will have to look into pulling that stupid wiring harness out again. Man! I had the whole front end off that car just to get at the harness. anyway thanks again.

beyondloadedSE · #23 06-08-2008, 01:10 PM

Quote:

Originally Posted by Selectron

I'm sure I remember reading that there are (or were) replacement harnesses available from at least a couple of different sources, at different prices. You might want to look into it and get a price on the ones which you might need to replace. If you wouldn't be too keen to do the replacement yourself, you might want to get a price for fitting-only from a specialist auto-electrical shop, if you supply the harnesses. I'd visit contour.org first and get opinions from other owners who have already been through the replacement process. It's difficult to believe that a company which has been around as long as Ford could make such a major blunder.

To my knowledge, only Ford sells replacement harnesses. When I got mine done under warranty, the cost of the 4 harnesses were $1300. They've now raised the price to $2600 last I heard from another member on CEG. Your
best bet is get a used one from a CEG'er parting out their car.

POST REPLY TO THIS THREAD