FUEL INJECTION SYSTEM TROUBLESHOOTING
SERVICE MANUAL NUMBER 24
Hesitation, Sag, Stumble Symptom (Continued)
Step
Action
Yes
No
PROCEED TO
1.
2.
Check for the ECT sensor shifted in value.
Check for intermittent opens or short to
grounds in the ECT sensor, MAP sensor
and TP sensor circuits. Also check or
throttle linkage sticking, binding or worn.
An intermittent failure may not store a DTC.
9
3.
Was a problem found?
Check for proper alternator voltage output.
Is voltage between 11 - 16 volts?
Check for faulty or incorrect thermostat.
Is thermostat faulty?
OBD
Step 10
Step 11
1.
10
11
1.
Step 12
Step 13
1.
Check intake valves for valve deposits and
remove if found.
12
Were deposits found on the intake valves?
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:
13
•
•
•
Visual/physical inspection.
Scan tool data.
All electrical connections within a sus-
pected circuit and/or system.
Contact
MerCruiser
Customer
Service
Go to OBD
System Check
Was a problem found?
Index
Page 5F-14
90-861327--1 OCTOBER 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 305 CID, Mercury MerCruiser 350 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 Engines Service Manual Number 24 GM V-8 305 CID 350 CID 4.0 out of 4.0 based on 1 product reviews. Great performance engine.
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