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1999 Dodge Caravan 99 Grand Caravan lost spark

Tiny
TRV063
  • MEMBER
  • 1999 DODGE CARAVAN
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
Had a bad fuel injector, replaced it had the van running. Then I changed spark plug wires and lost spark. All connections and relays are good coil pack is good what would make it lose spark so suddenly?
Wednesday, January 13th, 2010 AT 3:10 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Welcome to the forum, did you check for primary voltage at the coil pack? Green wire with orange tracer, should be hot with engine cranking. The asd relay supplies voltage to the coil--injector/s-- 02 heater circuit. If no voltage from asd relay, I'd have to check the asd relay circuits. Are there any trouble-codes?
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Wednesday, January 13th, 2010 AT 3:38 PM
Tiny
TRV063
  • MEMBER
  • 2 POSTS
I changed all relay switches, fuses and everything possible and still no fire.
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Sunday, January 17th, 2010 AT 3:11 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hi, with any electrical part, the problem could be with the electrical circuit. If the problem is in the electrical circuit, replacing parts won't fix it.
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Tuesday, January 19th, 2010 AT 10:07 AM

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