The 1990 Nissan Van has 4 recalls, all centered on engine compartment fire risk from multiple sources including leaking power steering fluid and deteriorating cooling system hoses.
The power steering hoses can develop leaks that allow fluid to reach the exhaust manifold, which runs hot enough to ignite that fluid and start an engine fire. On the cooling side, hoses that connect at clamp points can deteriorate and fail, spraying coolant onto surrounding engine components; if enough coolant escapes, the cooling system temperature and pressure can spike rapidly, raising the risk of further heat damage or fire. A broader concern about unspecified engine compartment components that degrade from underhood heat also points to fire risk, and prior repair attempts on some of these vehicles did not fully resolve the problem, as incorrectly installed fixes have been linked to additional fire incidents on vans that had already gone through a previous recall remedy.