Previous Thread
Next Thread
Print Thread
1994 Concord, fuse blows, stupid things happen #1008977
06/08/11 01:34 AM
06/08/11 01:34 AM
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle Offline OP
pro stock
racealittle  Offline OP
pro stock

Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
My sons '94 Concord has blown a fuse about 5 times over the last year.
The fuse is supposed to be for the automatic temperature control.
The ATC unit has been replaced with a new one in the past, and the relay on the unit has been replaced. The AC compressor has been unplugged.

Now for the stupid things that happen when the fuse blows, or is removed when everything seems to be in working order.
1) the ABS light comes on,
2) the automatic temperature contol seems to go to a default setting of full blowing heat throught the defrost vents,
3) the steering effort increases.

Anyone have a clue on how to fix this?


Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen! Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
Re: 1994 Concord, fuse blows, stupid things happen [Re: racealittle] #1008978
06/09/11 12:49 AM
06/09/11 12:49 AM
Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
In_The_Pink Offline
master
In_The_Pink  Offline
master

Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
Quote:

My sons '94 Concord has blown a fuse about 5 times over the last year.
The fuse is supposed to be for the automatic temperature control.
The ATC unit has been replaced with a new one in the past, and the relay on the unit has been replaced. The AC compressor has been unplugged.

Now for the stupid things that happen when the fuse blows, or is removed when everything seems to be in working order.
1) the ABS light comes on,
2) the automatic temperature contol seems to go to a default setting of full blowing heat throught the defrost vents,
3) the steering effort increases.

Anyone have a clue on how to fix this?




#2 is a result of the HVAC head unit going out. Been there, done that on a '94 Intrepid ES.

There is a fix involving re-soldering the contacts at the back of the head unit. Head over to http://www.dodgeintrepid.net/ and check out the first gen section, as it's a common issue.

Re: 1994 Concord, fuse blows, stupid things happen [Re: In_The_Pink] #1008979
06/09/11 01:38 PM
06/09/11 01:38 PM
Joined: Jan 2003
Posts: 10,630
S.E.Ohio
Magnumguy Offline
I Live Here
Magnumguy  Offline
I Live Here

Joined: Jan 2003
Posts: 10,630
S.E.Ohio
I was watching, as I recently bought a 95 Concorde.


"Multiple Magnum owner since 1978!!"


https://www.facebook.com/groups/146952895354657/
Re: 1994 Concord, fuse blows, stupid things happen [Re: racealittle] #1008980
06/09/11 01:40 PM
06/09/11 01:40 PM
Joined: Apr 2003
Posts: 3,968
North Riverside IL & Lowell IN
GTXKen Offline
super gas
GTXKen  Offline
super gas

Joined: Apr 2003
Posts: 3,968
North Riverside IL & Lowell IN
I have 1 Concorde and 5 intrepids. One of my intrepids had a fuse that would blow every once in a while when you were making a turn. Once I replaced the cradle bushings it never happened again.

Join dodgeintrepid.net for sure

Re: 1994 Concord, fuse blows, stupid things happen [Re: In_The_Pink] #1008981
06/09/11 05:33 PM
06/09/11 05:33 PM
Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
racealittle Offline OP
pro stock
racealittle  Offline OP
pro stock

Joined: Jan 2003
Posts: 1,263
Southwestern Ontario Canada
Thanks for the link,

I have done a search, and gone through 40 pages or so, back to 2002. Still no answer.

I did find the one about the soldering that you mentioned. I can't see any wiring issue yet.

I tried to read ATC codes, won't work for me.


Too many cars, too many parts, too little coin, too little space to work in, too little time left to make it all happen! Update: down to one ride, still too many parts, a little more jingle in the pocket, gaining space, and it's going to happen this year!
Re: 1994 Concord, fuse blows, stupid things happen [Re: racealittle] #1008982
06/09/11 09:12 PM
06/09/11 09:12 PM
Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
In_The_Pink Offline
master
In_The_Pink  Offline
master

Joined: Oct 2005
Posts: 9,065
Milwaukee, WI
Quote:

Thanks for the link,

I have done a search, and gone through 40 pages or so, back to 2002. Still no answer.

I did find the one about the soldering that you mentioned. I can't see any wiring issue yet.

I tried to read ATC codes, won't work for me.




It's not a woring issue, it's an internal head unit problem. There used to be someone on eBay who repaired them for $100, but that was a few years ago.

I tried the ATC codes and go nowhere, so I ended up manually moving the HVAC diverter doors and heat valve/door each season. Trust me, unless you have the hands of a three year old, it's not worth trying.

I even considered swapping over to the rotary dial non-ATC HVAC control, but that requires a different HVAC system and setup, so it wasn't worth it to me.

I ended up putting a wood wdges bewtween the plug and back of the head unit, so that it didn't trip into default mode, and that worked fairly well, but all you could control at that point was the fan speed.

As mentioned, the engine cradle bushings are also a known problem on some of the LH cars, but my '94s were in great shape, so I guess I was lucky. Be sure to check yours.







Powered by UBB.threads™ PHP Forum Software 7.7.1