HARD START (continued)
CHECK SENSORS AND CONTROLS FOR:
1.
Possible open in Engine Coolant Temperature (ECT) sensor and Manifold Absolute Pressure
(MAP) sensor Ground CKT 814. Also may have set a DTC 14 and/or DTC 33.
2.
3.
Throttle Position (TP) sensor,ground CKT 813 could have a possible open and set DTC 21.
A sticking throttle shaft or binding linkage causes a high Throttle Position (TP) sensor voltage.
Using a scan tool and/or voltmeter, TP sensor voltage should read less than .7 volt with throttle
closed.
4.
Proper Idle Air Control (IAC) operation.
CHECK ENGINE FOR:
1.
2.
3.
Restricted exhaust.
Proper cylinder compression.
Proper camshaft timing/valve train problem.
Index
5C-118 - ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY)
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you