Toyota TERCEL 1985 Repair Manual page 33

EM-2
Problem
Engine overheats
Engine will not crank
or cranks slowly
Engine will not start/
Hard to start
(cranks OK)
Rough idle or stalls
Engine hesitates/
Poor acceleration
ENGINE MECHANICAL - Troubleshooting
TROUBLESHOOTING
Possible cause
Cooling system faulty
Incorrect ignition timing
Starting system faulty
No fuel supply to carburetor
Carburetor probiems
Ignition probiems
Vacuum leaks
• HIC line
• PCV line
• EGR line
• MC line
• Intake manifold
Compression low
Feed back system probiems
Vacuum leaks
• PCV line
• MC line
• EGR line
• Intake manifold
• HAC line
Ignition probiems
Carburetor probiems
HAI system faulty
Engine overheats
EGR valve faulty
Incorrect valve clearance
Compression low
Feed back system probiems
Ignition probiems
Vacuum leaks
• HIC line
• PCV line
• EGR line
• HAC line
• Intake manifold
• Carburetor hoses
Air cleaner clogged
Fuel line clogged
Carburetor probiems
Emission control system problem
• HAI system always on (hot engine)
• AAP system faulty (cold engine)
• EGR system always on (cold engine)
• HAC system faulty
• CMH system faulty (cold engine)
Remedy
Troubleshoot cooling system
Reset timing
Troubleshoot starting system
Check fuel line
Troubleshoot fuel system
Troubleshoot ignition system
Repair as necessary
Check compression
Check air bleed feed back
system
Repair as necessary
Troubleshoot ignition system
Troubleshoot fuel system
Check HAI system
Troubleshoot cooling system
Check EGR valve
Adjust valve clearance
Check compression
Check air bleed feed back
system
Troubleshoot ignition system
Repair as necessary
Check air filter
Check fuel line
Troubleshoot fuel system
Check HAI system
Check AAP system
Check EGR system
Check HAC system
Check CMH system
Page
CO-2
IG-13
ST-2
FU-2
IG-2
EM-6
EM-32
IG-2
FU-3
EC-43
CO-2
EC-20
EM-35
EM-6
EC-32
IG-2
MA-5
FU-2
EC-43
EC-54
EC-20
EC-40
EC-61