If it still has the original motor, is that motor a Detroit Diesel, by chance? There is a possibility of it being an ECM malfunction, but, IIRC, Caterpillar and Cummins were still building mechanical motors for that year. It could also be the result of fuel starvation from... well, it could be a number of sources. Fuel pump going out, fuel filters needing to be changed, debris floating around the fuel lines, etc.
Peterbilt trucks are manufactured by the Peterbilt Motors Company. The company, founded in 1939, was named after founder T.A. Peterman and sells medium and heavy duty trucks.
One can view the Peterbilt show trucks from the Peterbilt Motors Company and their website. Peterbilt is based in Denton, Texas and was founded in 1939.
Peterbilt is a motors company which manufactures dump trucks and provides services for medium duty markets such as in construction or municipal areas.
Peterbilt Motors Company is the manufacturer of medium-duty and heavy-duty commercial trucks. Peterbilt has been one of America's premium quality heavy-duty truck manufacturers since 1939.
The company was formed by T.A. Peterman in 1939, after he had bought out the assets of Fageol Motors in 1938. The company was purchased by PACCAR, Inc. in 1958.
Diana Motors Company was created in 1925.
Indus Motors Company was created in 1990.
Continental Motors Company was created in 1905.
Motors Liquidation Company was created in 1908.
Menasco Motors Company was created in 1928.
There is no such company as Certia Motors. There is, however, a company called Cerita Motors. It is a company that specializes in manufacturing luxury buses in India.
If you're having difficulty doing this, a lawyer contacting PACCAR, Inc. is your best option.