Under the dash M&H wiring harness.
- Thread starter Russ Hood
- Start date
69hemibeep
Sponge Bob Square Wheels
That's the best out there. Ive installed several with one defect that I corrected. The plug to the rear harness all the wires were the mirror image of what they should have been
Russ69Runner
Well-Known Member
That is what I got from year one. It worked out well. I added A/C to my car so if you have console that needs to be there also. Only one wire had changed color and those guy's where help full. It was a good harness.
Jack R
Well-Known Member
I had the old factory harnesses and the M&H were each spot on same as.
6PKRTSE
Well-Known Member
Anyone have an old 70 under dash harness that is uncut or not burned/melted that they would like to get rid of?
a 50 year old harness is asking for trouble. install new or rewire it yourself.
MoparDan
Well-Known Member
Ya I've got one but there's a reason it is in a box in the shed. I wouldn't trust it. By the time I'm done with all the bodywork, paint and interior work, the last thing I want is to burn down my car. I bought American Auto Wire
quikbird
Well-Known Member
good start, like haywire myself. Get a big colored wiring plan. You will need it if you want to keep using the stock light switch dimmer etc. takes some serious thinking to make the connections and you will need the factory end connectors from old harness. They are not reproduced yet. Chrysler did not license anyone else to make them
MoparDan
Well-Known Member
Way to go Russ. Finish it up before the Tn winter sets in
Yea supposed to be 61 here in the morning. Fall is in the air.
Old harness is out. I'm about done.
MoparDan
Well-Known Member
Cool, keep us posted. This has been a long time coming.
Well not good news. Would not start. No spark to the plugs or no power to the coil. Car turns over fine.
New engine wiring harness
New under the dash wiring harness
New coil
New ECM
New fusible link
Distributor? Rotor button? I'm gonna check that tomorrow.
Grounds? I've checked them.
Ignition Switch?
Alternator? I did put a new one on and the wiring harness was for the new flatback style.
I'm tired started this evening at 6pm.
New engine wiring harness
New under the dash wiring harness
New coil
New ECM
New fusible link
Distributor? Rotor button? I'm gonna check that tomorrow.
Grounds? I've checked them.
Ignition Switch?
Alternator? I did put a new one on and the wiring harness was for the new flatback style.
I'm tired started this evening at 6pm.
MoparDan
Well-Known Member
Man I'm sorry.
Russ69Runner
Well-Known Member
Stop take a deep breath and think about it. Check at start run relay. Wires from your new harness. So, to say now no more of those splices in your wiring makes for a clean application. Your getting there and will feel a lot safer with the all-new wiring. This was a good move by you Russ. From one Russ to another. LOL. 
Do you have 12 volts at positive side of coil? If not, work that problem using the wiring diagram. Also, if no 12 volts at coil you can run a temporary jumper wire from battery positive to positive side of coil and car should start and run. Key word is temporary.
With a electronic distributor?