ENGINE CONTROLS 1F–299
DAEWOO M-150 BL2
Rough, Unstable, or Incorrect Idle, Stalling (Cont’d)
Step Action Value(s) Yes No
24
1. Inspect for vacuum leaks.
2. Check for proper Positive Crankcase Ventilation
(PCV) operation.
3. Check the Idle Air Control (IAC) valve operation.
4. Inspect the ECM ground connections.
Is the problem found?
–
Go to Step 25 Go to Step 26
25
Repair or replace any components as needed.
Is the repair complete?
–
System OK
–
26
1. Check the Electric Exhaust Gas Recirculation
(EEGR) valve for proper operation.
2. Inspect the battery cables and the ground straps
for proper connections.
3. Check the generator voltage output. Repair or
replace the generator if the voltage output is not
within the value specified.
Is the problem found? 12–16 V Go to Step 27 Go to Step 28
27
Repair or replace any components as needed.
Is the repair complete?
–
System OK
–
28
1. Inspect for broken engine mounts.
2. Check for proper valve timing.
3. Perform a cylinder compression test.
4. Inspect for bent pushrods, worn rocker arms,
broken or weak valve springs, and a worn
camshaft.
5. Perform repairs as needed.
Are all of the checks and needed repairs complete?
–
System OK
–
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