No Spark
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New User
Joined: Jun 2003
Posts: 17
Likes: 0
No Spark
hello i have a 87 bronco with the 302 (5.0)
i have been going crazy trying to figure out why i dont have any spark
the thing is i would be driving and my truck would just shut off and i pulled over an let it cool down it would start right back up again and then i would go again but it would shut off again with in like 2 min and then one day it just shut off and never turned on again so i checked out every thing an i found out i had not spark so i replaced the plugs - wires - coil - ign mod - distributor - cap - rotor - ecu - and i still have no spark an i cant figure it out i will turn the key and it will crank over but it wont start because of not having any spark so i was wondering if any one could help on telling me what i could do because i am going crazy about this
Upper case Edited out By FTE!
i have been going crazy trying to figure out why i dont have any spark
the thing is i would be driving and my truck would just shut off and i pulled over an let it cool down it would start right back up again and then i would go again but it would shut off again with in like 2 min and then one day it just shut off and never turned on again so i checked out every thing an i found out i had not spark so i replaced the plugs - wires - coil - ign mod - distributor - cap - rotor - ecu - and i still have no spark an i cant figure it out i will turn the key and it will crank over but it wont start because of not having any spark so i was wondering if any one could help on telling me what i could do because i am going crazy about this
Upper case Edited out By FTE!
Junior User
Joined: May 2003
Posts: 56
Likes: 2
From: Katy, TX
No Spark
I would guess you have a problem w/ the ignition switch not supply 12V to the igniter; faulty switch assembly or wiring problem. The reasoning is that since you've replaced the entire ignition system and still no spark, then the ignition system must not be getting voltage.
That's why diagnostics are necessary. It's impossible to guess a solution from symptoms, since so many problems present similar symptoms.
I would get a wiring diagram and trace the voltage supply to ignition system.
BTW, lose the ALL CAPS. It's harder to read.
good luck
That's why diagnostics are necessary. It's impossible to guess a solution from symptoms, since so many problems present similar symptoms.
I would get a wiring diagram and trace the voltage supply to ignition system.
BTW, lose the ALL CAPS. It's harder to read.
good luck
Freshman User
Joined: Dec 2002
Posts: 31
Likes: 0
From: Sweet USA
No Spark
The same thing is happening to my truck (85) and i replaced the wires, coil, rotor button, and distributer cap and it still will shut off and sometimes wont even crank......but it will turn over untill the battery dies.
