FUEL INJECTION SYSTEM TROUBLESHOOTING SERVICE MANUAL NUMBER 23
Page 5D-22 90-861326--1 MARCH 1999
Cuts Out, Misses Symptom (Continued)
6
1. Check fuel injectors.
•
Refer to
Injector Balance Test in
“General System Diagnostics” sec-
tion.
2. If a problem is found, repair as nec-
essary.
Was a problem found?
-
Go to
OBD
System
Check
Go to
Step
7
7
1. Check for proper spark at each cylin-
der.
2. If a problem is found, repair as nec-
essary.
Was a problem found?
-
Go to
OBD
System
Check
Go to
Step
8
8
1. Check the spark plugs for the follow-
ing:
• Insulator cracks.
• Improper gap.
• Burned electrodes.
• Heavy deposits.
NOTE: If spark plugs are gas or oil
fouled, the cause of the fouling must be
determined before replacing the spark
plugs.
2. If a problem is found, repair as nec-
essary
Was a problem found?
-
Go to
OBD
System
Check
Go to
Step
9
9
1. Check engine mechanical for the fol-
lowing conditions.
• Low compression.
• Sticking or leaking valves.
• Bent push rods
• Worn rocker arms.
• Broken valve springs.
• Worn camshaft lobe(s).
• Incorrect valve timing.
2. If a problem is found, repair as nec-
essary.
Was a problem found?
-
Go to
OBD
System
Check
Go to
Step
10
10
1. Check Intake and exhaust man-
ifold(s) for casting flash.
2. If a problem is found, repair as nec-
essary.
Was a problem found?
-
Go to
OBD
System
Check
Go to
Step
11
Downloaded from https://needmanual.com/!
To Next Page
Loading...
Need help?
General