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Troubleshooting
Troubleshooting Procedures (cont'd)
Symptom Chart
Listed below are
symptoms
and probable
causes
for problems that DO NOT cause the Malfunction Indicator Lamp (MIL) to
come
on.
If the
MIL was
reported
on,
go to page
11-60.
Troubleshoot each probable
cause
in the order listed
(from
left
to
right)
until
the symptom is eliminated.
The probable cause and troubleshooting page reference
can
be found
below.
SYMPTOM
PROBABLE CAUSE
Engine
will
not
start
4, 2, 3, 5, 20, 15,
1
Hard
starting
2,4,12,17,14,19
Cold fa
st
idle
too low
7, 8,9, 6,
17
Cold fast idle too high
7,8,9,11,10
Idle speed fluctuates
9,
7,8,11
,
10
Misfire
or
rough
running
Troubleshoot for misfire on
pages
11-126,
127
Low power
2,
10,11
,
13,17,18,20
Engine stalls
2, 4, 12,7, 20, 9,5,
16
Oth er Probable Causes for an engine that will not start:
-
Compression
-
Intake air leakage
-
Engine locked up
-
Tim ing belt
-
Starting
system
-
Overheating
-
Banery
Probable Cause List (Fa. the DTC Chart, see pag.11-75.t
Probable Cause
Page
System
1
11 -82
Engine Control Module (ECMI/Powertrain Control Module (PCMI
2
11 -178
Fuel pressure
3
11-187
PGM-FI main relay
4
Section 4
Ignition
system
5
11-131,146
Crankshaft Position{fop Dead
Center/Cylinder
Position
sensor circuit
6
11 -95
Intake Air Temperature (lAT) sensor circuit
7
11-152
Idle
Ai. Control
(lAC) Valve
8
11 -168
Fast
idle
thermo valve
9
11-169
Id
le
speed
adjustment
10
11 -196
Throttle body
11
11-194
Throttle cable
12
11 -90
Manifold Absolute Pressure
(MAP)
sensor
13
11 -103
Throttle Position
(TP)
senso
r
14
11 -137
Barometric
pressure
(BARO)
sensor
15
Section 14
AfT
gear position Signal
16
11 -166
Brake
switch
signal
17
11-194
Air Cleaner
18
11 -199
Three Way
Catalytic
Converter
(TWCI
19
11-203
Evaporative
emission (EVAP)
control
20
- -
Contaminated fuel
11-64
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Table of Contents
Troubleshooting
