Part Identification.
#1
Part Identification.
My Names Zach, I own a 1974 dodge Powerwagon.. I have located a box on my fire wall that connects to both bottom on top of the ballast resistor.. This box looks somewhat like a voltage regulator but is not at all. It has a inline three prong connector. This box has H8D fairly Large on it, With a Chrysler Stamp. It also has two part numbers on it
375 A and below that
3874129
I need help figuring out what this is...
My truck is Currently not running,, I have tested all the Electrical, and everything passes.. And I still have no spark. This Box runs connects to the ballast on both top and bottom connectors, Could it be that this box is preventing a circulating current for the ignition coil to function properly?
375 A and below that
3874129
I need help figuring out what this is...
My truck is Currently not running,, I have tested all the Electrical, and everything passes.. And I still have no spark. This Box runs connects to the ballast on both top and bottom connectors, Could it be that this box is preventing a circulating current for the ignition coil to function properly?
#2
RE: Part Identification.
Your part is an emissions control switch.
You've obvioulsy missed something.
Your ignition system has very few components, all of which are easily tested with a DVOM.Assuming you have power to the coil (Key on/start power is there, ballast OK), your problem is with one of the following components or wiring between them:
-Distributor pick-up coil(s)
-4/5-pin ECU
-ignition coil
These systems are somewhat prone to failure, but you can replace every component in the secondary system for under $200, so it's really not a big deal. I keep a spare of every ignition part in the trunk of my '78 Aspen, along with an alternator, belts, hoses and other sundries. Barring engine/tranny/diff failure, there is nothing I can't fix on the side of the road.
I have tested all the Electrical, and everything passes.. And I still have no spark.
Your ignition system has very few components, all of which are easily tested with a DVOM.Assuming you have power to the coil (Key on/start power is there, ballast OK), your problem is with one of the following components or wiring between them:
-Distributor pick-up coil(s)
-4/5-pin ECU
-ignition coil
These systems are somewhat prone to failure, but you can replace every component in the secondary system for under $200, so it's really not a big deal. I keep a spare of every ignition part in the trunk of my '78 Aspen, along with an alternator, belts, hoses and other sundries. Barring engine/tranny/diff failure, there is nothing I can't fix on the side of the road.
#3
RE: Part Identification.
Well after further working on my truck, I have replaced the Distributor, and the Brain Box, ECU, and the Coil.., There is power at the coil, and at the 3 of the 5 pin ECU.
The Two Prong wires coming off the distributor, what are they supposed to read at on a meter?
The Two Prong wires coming off the distributor, what are they supposed to read at on a meter?
#4