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Taking Care of the Unexpected 151
If Your Engine Quits or Won’t Start
SYMPTOM: Engine starts, but runs poorly.
POSSIBLE CAUSE WHAT TO DO
idles roughly, too fast,
stalls
Check engine idle adjustment
(page 113). If the problem persists, see
your dealer.
overheating Check the coolant temperature gauge.
Refer to If Your Engine Overheats,
page 162.
low oil pressure Check the low oil pressure indicator.
Refer to If the Low Oil Pressure
Indicator Lights, page 164.
runs erratically, misfires May damage catalytic converters.
See your dealer.
blubbers
(rich fuel mixture)
See your dealer.
sooty exhaust
(rich fuel mixture)
See your dealer.
detonates or pings under
load
If applicable, switch to the recommended
octane gasoline (page 94) or change
your brand of gasoline. If the problem
persists, see your dealer.
afterfires (backfires) May damage catalytic converters.
See your dealer.
pre-ignition (runs on after
ignition switched OFF)
May damage catalytic converters.
See your dealer.
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