SERVICE MANUAL NUMBER 23
FUEL INJECTION SYSTEM TROUBLESHOOTING
Surges and/or Chuggles Symptom (Continued)
1.
Visually/physically check vacuum
hoses for splits, kinks and proper
connections and routing.
15
16
2.
If a problem is found, repair as
necessary.
Go to OBD
System
Check
Was a problem found?
-
Go to Step 16
1.
2.
3.
Check or proper alternator voltage
output.
The voltage should be between
specified values.
If a problem is found, repair as
necessary.
Go to OBD
System
Check
11-16
Volts
Was a problem found?
Go to Step 17
1.
Review all diagnostic procedures
within this table.
2.
If
all
procedures
have
been
completed and no malfunctions
have been found, review/inspect the
following:
•
•
•
Visual/physical inspection.
Scan tool data.
All electrical connections within a
suspected circuit and/or system.
17
Contact
MerCruiser
Customer
Service
3.
If a problem is found, repair as
necessary.
Go to OBD
System
Check
Was a problem found?
-
Lack of Power, Sluggish or Spongy Symptom
Step
Action
Value(s)
Yes
No
Definition: Engine delivers less than expected power. Little or no increase in speed when
throttle lever is advanced part way.
Was the “On-Board Diagnostic” (OBD)
System Check performed?
Go to OBD
1
2
-
Go to Step 2 System Check
Compare engine performance with a
similar engine. Both should be close.
Is engine performance close to similar
engine.
No problem
found
-
-
Go to Step 3
Was visual/physical check performed?
Go to Visual/
Physical
Check
3
4
Go to Step 4
1.
2.
Remove and check flame arrestor
for dirt, or for being restricted.
Replace flame arrestor if necessary.
Go to OBD
System
Check
Was a problem found?
-
-
Go to Step 5
1.
2.
Check for contaminated fuel.
Check water separating fuel filter.
5
3. If a problem is found, repair as
necessary.
Was a problem found?
Go to OBD
System
Check
Go to Step 6
Index
90-861326--1 MARCH 1999
Page 5D-13
| 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 |
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Marine readers have rated Mercury MerCruiser GM V8 GM V8 454 CID 7.4L and 502 cid 8.2L Marine Engines Service Manual Number 23 5.0 out of 5.0 based on 1 product reviews. Just need the manual. Wrote review. Can't technically review what I haven't seen yet...