1991 FORD FESTIVA lock

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Page 225 of 454

FORD FESTIVA 1991  Service Manual bolts
Noisy Pistons and Rings
Excessive piston-to-bore clearanceInstall larger pistons, See 
ENGINES
Bore tapered or out-of-roundRebore block
Piston ring brokenReplace piston rings, See 
ENGINES
Pisto

Page 227 of 454

FORD FESTIVA 1991  Service Manual BASIC WARM ENGINE DRIVEABILITY SYMPTOMS TROUBLE SHOOTING CHART 
DIESEL ENGINE TROUBLE SHOOTING 
BASIC DIESEL ENGINE TROUBLE SHOOTING CHART 
SYSTEMS
Acceleration Sag or Stall
Defective choke control sw

Page 228 of 454

FORD FESTIVA 1991  Service Manual Fuel not injected into cylindersCheck fuel injectors, see FUEL 
SYSTEMS
No fuel to injection pumpCheck fuel delivery system
Fuel filter blockedReplace fuel filter
Fuel tank filter blockedReplace fuel

Page 229 of 454

FORD FESTIVA 1991  Service Manual VACUUM PUMP DIAGNOSIS 
FUEL INJECTION TROUBLE SHOOTING 
BASIC FUEL INJECTION TROUBLE SHOOTING CHART 
EGR valve malfunctionReplace EGR valve
Blocked or damaged exhaust systemRemove restriction and/or

Page 234 of 454

FORD FESTIVA 1991  Service Manual TUNE-UP TROUBLE SHOOTING - GAS ENGINE VEHICLES 
BASIC SPARK PLUG TROUBLE SHOOTING CHARTS 
Faulty solenoid switch, switch connections or relayCheck all wiring between 
relay and solenoid or replace 
re

Page 236 of 454

FORD FESTIVA 1991  Service Manual BASIC DRIVEABILITY PROBLEMS TROUBLE SHOOTING 
Corroded spark plugsReplace spark plugs
Cylinders Not Firing
Cracked distributor cap terminalsReplace distributor cap
Shorted spark plug wireDetermine cau

Page 239 of 454

FORD FESTIVA 1991  Service Manual POWERTRAIN 
CLUTCH TROUBLE SHOOTING 
BASIC CLUTCH TROUBLE SHOOTING CHART 
Gear Clash When Shifting Forward GearsClutch Out Of Adjustment, Shift linkage damaged or out of 
adjustment, Gears or synchron

Page 240 of 454

FORD FESTIVA 1991  Service Manual DRIVE AXLE - NOISE DIAGNOSIS 
Unrelated Noises 
Some driveline trouble symptoms are also common to the engine, transmission, wheel bearings, tires, and other parts of the vehicle. Ensure 
cause of tro