Hence the word "older". The electrical system is just not up to date but should not be faulty. It depends on the age of the vehicle also. Research complaints and recalls on the vehicle or get a Car Fax report.
The older model chevy trucks manufactured before the 1990's have a history of blowing fuses for no apparent reason. The blown fuses normally cause no major problems requiring any major repairs. Usually its no more than a taillight
Below an 88 no. Above that they started having trouble with the computers. Mostly fuel pumps and taillights. If you run out of gas the fuel pump will go out.
