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'73 Dodge power wagon no spark
#1057978
08/20/11 04:41 PM
08/20/11 04:41 PM
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Joined: Aug 2003
Posts: 4,463 Rome, PA
Ryan_340
OP
master
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OP
master
Joined: Aug 2003
Posts: 4,463
Rome, PA
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My '73 W200 has no spark, I have replaced about everything in the igintion system. Now I have noticed that with the key off, and the lead alternator wire disconnected it arcs. I have removed all the tape from the wires and havent found any bad wires all the way back to the firewall.
1972 Power Wagon W100
1973 Power Wagon W200
1971 Duster
1972 Dart Swinger
3-1972 Demons
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Re: '73 Dodge power wagon no spark
[Re: Ryan_340]
#1057981
08/21/11 10:55 AM
08/21/11 10:55 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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OE dual (4 terminal) ballast/5 pin ECU I'm assuming? What components have you replaced so far? Take off the yellow solenoid start wire off of the starter relay to disable the starter to elim the noise distraction & not run the batt down then have a helper hold the key to start & you check for fire under the hood, 2 pins on the ECU (5 pin) need to b hot in addition 2 the coil positive pri terminal. If not bulkhead is a pri culprit to check 1st. Take off any/all wires off of the coil neg pri terminal & w a jumper wire w alligator clips jump the coil neg pri terminal (not the wire(s) you removed from it) to ground repeatedly like Morse Code & see if it (large coil center secondary wire (dist end held 1/4" from ground)now sparks & if so all is good ex the ECU (or it's ground) or the dist pickup (or their supporting wiring). Now seperate the pull apart dist 2 wire connector & same thing Morse Code touch the male terminal on the body half of the connector to ground & see if you have spark & if so the dist pickup/gap is bad. All w key held to start. EDIT (re) install the coil neg pri wire(s) b 4 you do the dist pickup test
Last edited by RapidRobert; 08/21/11 12:20 PM.
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