2C16
TABLE VIII-III. TROUBLESHOOTING CHART (ENGINE) (cont.)
High fuel Restricted re- Replace pump.
pressure. circulation pas-
(cont.) sage in fuel in-
jector.
Air leakage in fuel Locate cause of leakage and eliminate.
gauge vent pres-
surization line.
Fluctuating fuel Vapor in fuel Normally operating the auxiliary pump will clear
pressure. system. system. Operate auxiliary pump and purge system.
Fuel gauge line leak Purge gauge line and tighten connections.
or improperly purged
lines.
Low oil pressure Insufficient oil in Add oil or change oil to proper viscosity.
on engine gauge. oil sump, oil dilu-
tion or using im-
proper grade oil for
prevailing ambient
temperature.
High oil temper- Defective vernatherm valve in oil cooler; oil
ature. cooler restriction. Replace valve or clean oil
cooler.
Leaking, damaged or Check for restricted lines and loose connections,
loose oil line con- and for partially plugged oil filter and screens.
nections- Re- Clean parts, tighten connections, and replace
stricted screens defective parts.
and filter.
Trouble Cause Remedy
Revised: 8/31/77
CHEROKEE ARROW III SERVICE MANUAL
POWER PLANT - CONTINENTAL