Mercury MerCruiser D2.8L D-Tronic Service Manual page 649

SERVICE MANUAL NUMBER 22
Troubleshooting Charts (Continued)
CONDITION
ENGINE
STARTS, BUT
WILL NOT KEEP
OPERATING
90-860074--1 FEBRUARY 2002
POSSIBLE CAUSES
1. Glow plug relay(s) defective.
2. One or more glow plugs
defective.
3. Idle speed / fuel quantity too
low for the accessories.
4. Intake air or exhaust system
restricted.
5. Air in the fuel system, or the
fuel supply is inadequate.
6. Fuel waxing due to extremely
cold weather.
7. Contaminated fuel.
EDI DIAGNOSIS
CORRECTION
1. Verify system is working.
Repair/replace inoperative
parts.
2. Verify system is working.
Repair/replace inoperative
parts.
3. Adjust the idle speed.
4. Visually check for exhaust
restriction and inspect the air
intake. Repair/replace
restricting parts.
5. Check flow through the filter
and bleed the system. Locate
and eliminate the source.
6. Verify by inspecting the fuel
filter. Clean the system and
use climatized fuel. Replace
fuel/water separator
Check fuel heater for properly
operate if equipped.
7. Verify by operating the engine
with clean fuel
temporary supply to check for
presence of
Replace fuel/water separator
filter.
filter.
from a
gasoline.
Page 5E-81