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Truck Repair/Blowing the ignition fuse on a 8600 international


Have a 8600 international, an it keeps blowing the ignition fuse. We have checked for wires that have rubbed though, an can't find anything! The truck will run if it's sitting, but if you drive it, it will blow the fuse, an if you put a new fuse in it will blow it, let it sit for a bit an you can put a new fuse in an it's fine, than take it for a drive it does the same thing!  Any ideas?

Just throwing out some ideas. Any corrosion on any connections causing it to draw too many amps. What about a bad starter or starter solenoid could be shorted. The one thing i have dealt with is a bad wire altogether. I've had them corrode inside the casing and break inside the casing which causes a short. Or i've had the wires over time get weak and the wire gets hot causing problems with fuses. If there's anything aftermarket patched into the ignition wire unhook those to make sure nothing aftermarket is causing it. Alot of times to eliminate the wire i'll make a quick jumper wire to bypass the original wire to eliminate that as a possibility.

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Jeff Drumm


I Can answer any question pertaining to semi trucks and trailers. Have no experience in the automotive field so not able to help in that area.


My experiences in Semi Trucks is. I own my own truck and i presntly maintain a 80 truck fleet. Can handle any questions pertaining to a truck have tore apart and rebuilt every aspect on them. Fleet I deal with is Mainly Volvo trucks and a handful of freightliners. Work on automated transmissions on a daily basis along with carrier apu's. With engines my specialty is the 60 series Detroit but do work on the cummins isx the n-14 and the ism. and also the Volvo engines.

Have a College Degree from university of northwestern ohio in diesel and agriculture mechanics. Have 10 years behind the wheel driving a truck and 4 years working on trucks full time. Also have grown up on a farm so have been tinkering on trucks and tractors all my life.

Awards and Honors
I've gone through online schooling and have received certificates from webb wheel, Timken and Volvo academy.

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