FUEL INJECTION SYSTEM TROUBLESHOOTING
SERVICE MANUAL NUMBER 23
Rough, Unstable, or Incorrect Idle, Stalling Symptom (Continued)
1.
Check
the
following
Engine
Mechanical items:
•
•
•
Check compression.
Sticking or leaking valves.
Worn camshaft lobe(s).
Valve timing.
17
•
•
Broken valve springs.
2.
If a problem is found, repair as nec-
essary.
Go to OBD
System
Check
Was a problem found?
-
Go to Step 18
1.
Check intake valves for valve
deposits.
2.
If deposits are found, remove as
necessary.
18
19
Go to OBD
System
Check
Were deposits found on the intake
valves?
-
-
Go to Step 19
Go to Step 20
1.
2.
Check for faulty motor mounts.
If a problem is found, repair as nec-
essary.
Go to OBD
System
Check
Was a problem found?
1.
Review all diagnostic procedures
within this table.
2.
If all procedures have been com-
pleted and no malfunctions have
been found, review/inspect the fol-
lowing:
•
•
•
Visual/physical inspection.
Scan tool data.
All electrical connections within a
suspected circuit and/or system.
20
Contact
MerCruiser
Customer
Service
3.
If a problem is found, repair as nec-
essary.
Go to OBD
System
Check
Was a problem found?
-
Index
Page 5D-26
90-861326--1 MARCH 1999
Product Specification
Categories | Mercury MerCruiser Manuals |
---|---|
Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
Model Year | 1998, 1999, 2000, 2001 |
Download File |
|
Document File Type | |
Copyright | Attribution Non-commercial |
Just need the manual. Wrote review. Can't technically review what I haven't seen yet...