Re: 440 won't start in start
[Re: Jupiter331]
#2597303
12/26/18 08:57 PM
12/26/18 08:57 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Post all you want (on any issue/anytime). Check that what is being fed in ign1 (run) is the same as what is being fed in ign2 (crank). Post how you have it wired. Your hard parts are fine cuz it does start in ign1 "run" which is thru the ballast so it has to be how it is wired. Something dont sound right tho (but we'll get it figured). EDIT 4 terminal ECU I am assuming. the coil positive primary and the blue/yellow ECU terminal need to be fed in "run" and in "crank" (& in "run" the 12v in the blue wire main feed out from the ign sw goes thru the ballast before it reaches the coil positive primary terminal).
Last edited by RapidRobert; 12/26/18 09:06 PM.
live every 24 hour block of time like it's your last day on earth
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Re: 440 won't start in start
[Re: Pacnorthcuda]
#2597363
12/27/18 12:02 AM
12/27/18 12:02 AM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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Jump 12V to the ballast (upstream end of it so it goes thru it to the coil) & 12V to the blue/yellow terminal on the ECU pentastar connector (stick a pin in there to do that) & stick the red one if it is an OE pentastar connector. crank it & see if it starts
live every 24 hour block of time like it's your last day on earth
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Re: 440 won't start in start
[Re: dragon slayer]
#2597608
12/27/18 02:57 PM
12/27/18 02:57 PM
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Joined: Sep 2003
Posts: 19,624 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,624
north of coder
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to simplify this. in start, the starter circuit gets current as well as the ignition circuit. engine runs. key is let go to run position. engine continues to run. starter circuit is disabled [current is cut to that part of wiring circuit. engine continues to run because run circuit is still getting current. when engine "starts" in the run position only, the starter has got the engine spinning fast enough that when the key is released and current is established in the run position, the engine fires and continues to run. places to look at include the ignition switch, the connector where the ignition switch connects to the main harness, the bulkhead connection, the starter relay, and anything that looks "suspicious". wiring can [at times] make a guy tear his hair out. good luck, and please post back when the problem has been worked out.
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Re: 440 won't start in start
[Re: Jupiter331]
#2597787
12/27/18 10:48 PM
12/27/18 10:48 PM
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Joined: Jul 2011
Posts: 960 Chicago
PurpleBeeper
super stock
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super stock
Joined: Jul 2011
Posts: 960
Chicago
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My 2-cents..... the brown ignition wire, coming from the bulkhead disconnect, is not getting 12V. a) bad brown wire b) bad connection at bulkhead disconnect c) bad ignition switch
d) bad ballast resistor
e) wiring is bas-akwards or crossed in some way
70 Roadrunner convt. street car
440+6, NOS, 4-spd, SS springs
'96 Mustang GT convt. street car
'04 4.6 SOHC, NOS, auto, lowered
"Officer, that button is for short on-ramps"
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Re: 440 won't start in start
[Re: Jupiter331]
#2597795
12/27/18 11:02 PM
12/27/18 11:02 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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d) bad ballast resistor
lol
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: 440 won't start in start
[Re: Jupiter331]
#2599466
12/31/18 09:25 PM
12/31/18 09:25 PM
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Joined: Jan 2008
Posts: 3,886 Lost and Spaced
bboogieart
master
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master
Joined: Jan 2008
Posts: 3,886
Lost and Spaced
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Sorry took so long to respond. Christmas took priority Amen Pal. Never mind the curmudgeons.
I have mechanical Aptitude. I can screw up anything.
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Re: 440 won't start in start
[Re: bboogieart]
#2599518
12/31/18 10:42 PM
12/31/18 10:42 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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(1) the two terminals on each long "end" of the ballast in the white connectors, connect them together (makeing a parallel circuit) on each end (I hope that makes sense, in other words making the dual ballast into a single ballast). (2) run the blue ign1 "run" wire to the upstreeam end of the ballast (3) run the brown ign2 "crank" wire to the downstream end of the ballast (bypassing the ballast) (4) then the downstream end of the ballast to the coil positive primary. I believe the black/yellow to coil neg & the other two to the dist pickup are polarity correct for correct Rotor Phasing cuz it does run OK when it runs. EDIT As said, confirm the box is grounded well (removeing/retightening the 2 mounting screws usuall does it) MORE EDIT post how you have it wired (I couldn't quite see from the pic but something ain't right). the green with red tracer wire should not be connected to anything (useing the orange box), more later when you post what is where.
Last edited by RapidRobert; 12/31/18 11:54 PM. Reason: missed something
live every 24 hour block of time like it's your last day on earth
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Re: 440 won't start in start
[Re: Jupiter331]
#2599544
12/31/18 11:20 PM
12/31/18 11:20 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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A 70 E body should not be running a dual ballast. Especially with an orange box. Sounds like something is heating up, failing then when it cools it works again.
Time to get a meter out and take some voltage readings before and after failure.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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