Post signs that read "NO SMOKING WITHIN 50 FEET (15 m)" when working with
open fuel lines or fuel tanks. Use caution when loosening intake fuel fittings. Fuel
pressure is sufficient to penetrate skin and cause severe injury. Do not work on fuel
system when engine is hot; fuel can be ignited by a hot engine.
FUEL INJECTORS INSPECTION
(1) Remove negative battery cable
(2) Remove fuel injectors (pare 5-42).
(3) Test fuel injectors (pare 5-42).
(4) Opening pressure is 3160 to 3307 psi
(21778 to 22791 kPa) on all injectors.
(a) If fuel injectors do not open at
proper opening pressure,
replace injectors (pare 5-42).
(b) If fuel injectors open at
opening pressure, indicates
faulty turbocharger seal rings.