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starting problem?? #980692
04/25/11 11:25 PM
04/25/11 11:25 PM
Joined: Nov 2010
Posts: 204
washington
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AB&E Offline OP
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washington
Okay guys my car will not start when I am turning it over it will only start when you stop turning key over & its just right.
I have electronic ignition its on a 71 cuda. I have replaced resister block & swapped out ecu from other car still same thing it will run if you catch it just right & it doesnt catch on fire sucks please help I had coulumn restored 6yrs ago at ecs & had a new ignition switch installed at that time. I am thinking ignition switch now ????????? Its loosing juice when turning over why electrical sucks

Re: starting problem?? [Re: AB&E] #980693
04/25/11 11:46 PM
04/25/11 11:46 PM
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Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
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Lincoln Nebraska
4 pin ECU/2 terminal ballast or 5 pin ECU/4 terminal (dual) ballast? Pull the yellow "ign" wire off of the starter relay to disable the starter to save the battery/elim the noise distraction & have a helper hold the key to "start" & you see if the coil positive pri terminal and the ECU main feed terminal (2 terminals on a 5 pin ECU) are getting fire. Pull/clean the bulkhead & work back toward the ign sw or downstream forward to find the open


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Re: starting problem?? [Re: RapidRobert] #980694
04/26/11 12:15 AM
04/26/11 12:15 AM
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washington
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okay I have a 5ecu/4wire ballast When i turn key on I have power to pos of coil & to ecu but when I turn to start I loose all power to both ??

Re: starting problem?? [Re: AB&E] #980695
04/26/11 12:37 AM
04/26/11 12:37 AM
Joined: Jan 2003
Posts: 683
CENTRAL MINN
1965_PLYMOUTH Offline
mopar
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CENTRAL MINN
sounds like a bad pick-up inside the distributor. I ran into this many times back in the day.

Re: starting problem?? [Re: 1965_PLYMOUTH] #980696
04/26/11 12:54 AM
04/26/11 12:54 AM
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Posts: 204
washington
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AB&E Offline OP
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I see this has been a problem lots of times.
So I am thinking now
1 bad connection
2 ign. switch
3 pickup coil ?

any other thoughts

Re: starting problem?? [Re: AB&E] #980697
04/26/11 01:41 AM
04/26/11 01:41 AM
Joined: Mar 2003
Posts: 18,678
Fresno, CA
Jim_Lusk Offline
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Fresno, CA
Check for voltage from the ignition switch. Do you have a service manual or the wiring diagram?

Re: starting problem?? [Re: AB&E] #980698
04/26/11 07:48 AM
04/26/11 07:48 AM
Joined: Nov 2004
Posts: 843
Suffolk,VA
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ireland383 Offline
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Suffolk,VA
Check your grounds. Also make sure your field connections are tight on your alternator. Make sure the bulkhead wiring doesn't have any shorts or corrosion.

Re: starting problem?? [Re: ireland383] #980699
04/26/11 10:02 AM
04/26/11 10:02 AM
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Posts: 25,200
Upper Midwest
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MoparforLife Offline
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Simple 'fix'. Run a push button switch to the starter relay terminals and start with the key in the run position. just make sure to have vehicle is in park or Neutral when starting as it will start in any position this way. Great anti theft devise. Not a true and 'correct' repair, but is cheap and it works.

Re: starting problem?? [Re: ireland383] #980700
04/26/11 01:50 PM
04/26/11 01:50 PM
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Posts: 204
washington
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Quote:

Check your grounds. Also make sure your field connections are tight on your alternator. Make sure the bulkhead wiring doesn't have any shorts or corrosion.




I did find that the wire going to stud on alt.(not sure which wire only one with stud ) the stud sheered off so I just took inside nut off & bolted terminal back on ?? I would not think that was it but????? My problem is no power in start mode to coil.key on good go to start loose power?

Re: starting problem?? [Re: AB&E] #980701
04/26/11 08:12 PM
04/26/11 08:12 PM
Joined: Nov 2010
Posts: 204
washington
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AB&E Offline OP
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washington
Quote:

Quote:

Check your grounds. Also make sure your field connections are tight on your alternator. Make sure the bulkhead wiring doesn't have any shorts or corrosion.




I did find that the wire going to stud on alt.(not sure which wire only one with stud ) the stud sheered off so I just took inside nut off & bolted terminal back on ?? I would not think that was it but????? My problem is no power in start mode to coil.key on good go to start loose power?




Re: starting problem?? [Re: AB&E] #980702
04/26/11 11:27 PM
04/26/11 11:27 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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Quote:

but when I turn to start I loose all power to both ??


w key held to start see if you have fire at the "ign2" wire in the plastic pull apart connector dangling below the st column (a test light w needle probe tip and alligator clip on the other end to ground it works well 4 this). Dont seperate it but use the needle probe. No power "out", need to pull the steering wheel to access the sw. If power, go up to & seperate the bulkhead and check the 2 brass connectors on either side for that circuit. www.mymopar.com has the colors 4 you


live every 24 hour block of time like it's your last day on earth
Re: starting problem?? [Re: AB&E] #980703
04/27/11 12:36 AM
04/27/11 12:36 AM
Joined: Jan 2003
Posts: 536
PA
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maxwedge1 Offline
mopar
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PA
if it ran before and wiring/ignition switch checks out, i too suspect the pickup coil in distrib.

seen it on mopar and fords..cranks and cranks and just as you release the key it trys to fire.

Re: starting problem?? [Re: maxwedge1] #980704
04/27/11 01:25 PM
04/27/11 01:25 PM
Joined: Nov 2010
Posts: 204
washington
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AB&E Offline OP
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washington
thanks for all the help .
I just want all the info I can get so next time I spend 3hrs working on it I may be able to fix it with all your guys help so thanks again

Re: starting problem?? [Re: AB&E] #980705
04/27/11 01:46 PM
04/27/11 01:46 PM
Joined: Jan 2003
Posts: 1,381
Youngsville, NC
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dem440c Offline
pro stock
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Youngsville, NC
my memory may be goofy on this... but isn't this a part of the starter relay setup? Seems like there is a separate circuit which feeds 12V on the coil side of the ballast resistor when in the "start" position (bypassing the resistor) and the circuit is fed by the relay.

I know I have encountered the opposite situation when the car starts and runs as long as you hold it on "start" but then stalls as soon as you release the key, which is what you get when the ballast resistor goes bad. Just extrapolating from that.







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