Plymouth Breeze blows a fuse


#1

This car, a '96, blows the #8 ignition / starter / fuel fuse for “no apparent” reason. I have to replace this 20A fuse if I want the car to start. How can I check to find a plausible cause for this?


#2

The fuse is blowing to protect the rest of the circuit. Somewhere within the circuit (or circuits) protected by this fuse there is a short or some other problem causing a current draw of more than 20 Amps. That’s a pretty big draw.

Fuses don’t blow for no reason. You just haven’t found the reason yet.


#3

To add to what was said, remember that the short may be intermittent and only occur occasionally, maybe a frayed wire rubbing against something. They can be tough to find unless the fuse is blowing as soon as you put it in.

Good Luck


#4

The above posts both speak the truth but give you no help in tracking down the problem. Your next step must be to get a wiring diagram and find out exactly which components are controlled by the fuse. I’m suspecting you have a bad starter (solenoid) but you will use the wiring diagram to confirm.


#5

Fuse #8 provides power to the starter relay and the fuel pump relay (diagram #1). It also supplies power to the ignition switch (diagram #2). Diagram 3 shows a simplified view of the starting system. Hope these help.
~Michael


#6

Sorry here is diagram #2.
~Michael


#7

Thanks DARTMAN…it’s amasing how these systems rely on one another. I guess I’ll try to find a way to test these circuits or get a mecanic who knows his way around electrical problems. In the meantime, I’ve baught a case of 20A fuses to get around!