Piper CHEROKEE WARRIOR PA-28-151 1995 Maintenance Manual page 321

PIPER CHEROKEE WARRIOR SERVICE MANUAL
TABLE IX-VII. FUEL SYSTEM TROUBLESHOOTING (cont.)
Trouble
No fuel pressure indication.
Pressure low or pressure
surges.
Unidentified leak.
Fuel selector valve leaks.
Revised: February 28, 1995
Cause
Fuel valve stuck.
No fuel in tanks.
Defective engine driven fuel
pump.
Defective fuel pressure gauge.
Fuel selector not in proper
p o s ition
Obstruction in inlet side of
engine driven fuel pump.
Faulty by-pass valve.
Faulty diaphragm in engine driven
fuel pump.
Fuel line damaged or improperly
installed.
Worn fuel selector valve O-rings.
THIS SPACE INTENTIONALLY LEFT BLANK
2B9
Island Enterprises
Remedy
Check valve.
Check fuel level. Add fuel as
required.
Check engine driven pump for
pressure build up. Check
diaphragm and relief valves in
engine pump. Check for
o b s t r u ctions in electric pump.
Check for air leak in intake lines.
Replace fuel pressure gauge.
Check position of selector .and
adjust if required.
Trace lines. Locate and clear
o b s t r u ction.
Replace by-pass valve
Replace or rebuild engine driven
fuel pump.
Locate damaged fuel line and
repair or replace. Tighten leak-
ing fitting.
Replace O-rings or complete fuel
selector valve.
FUEL SYSTEM