Rough, Unstable, or Incorrect Idle and Stalling

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Definition: Engine runs unevenly at idle. If severe, the engine or vehicle may shake. Engine idle speed may vary in RPM. Either condition may be severe enough to stall the engine.

Preliminary Checks

  • Refer to the Powertrain On Board Diagnostic (OBD) System Check.

  • Refer to I...

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You may preview the service manual table of contents by clicking below.

Service Manual Table of Contents

Document Tags

Document Title: Rough, Unstable, or Incorrect Idle and Stalling

engine

idle

system

check

refer

fuel

pressure

test

injector

coil

trim

range

sensor

components

valve

proper

wiring

voltage

exhaust

ignition

following

spark

tester

ground

connect

plug

wire

cracks

resistance

improper

secondary

faulty

damaged

mechanical

inspect

possible

mounts

fuel trim

spark plug

spark plugs

engine mechanical

exhaust system

check fuel pressure

check items engine

fuel trim significantly

fuel trim system

transaxle range switch

spark plug wire

plug wire coil

value outside specified

outside specified range

secondary ignition wires

check exhaust system

exhaust system check

check faulty motor

faulty motor mounts

motor mounts engine