Engine Trouble Service

Problem

Engine will not crank.

Cause

Run down battery. Starting circuit open. Starting motor jammed. Engine stuck up. Transmission not in nuetral or park.

Solution

Recharge or replace battery, jump start engine. Check dirty or loose connection, check starter safety switches. Remove starting motor and repair. Service engine. Move shift lever.

Problem

Engine cranks slowly but will not start.

Cause

Run down battery. Defective starting motor. Bad Connections in starting system.

Solution

Recharge or replace battery, jump start engine. Repair or replace starting motor. Repair, clean and tighten connections.

Problem

Engine cranks at normal speed but will not start.

Cause

Defective ignition system. Defective fuel system. Air leak into intake manifold. Engine defective. Plugged fuel filter. Restricted exhaust system.

Solution

Spark test, check ignition timing. Check fuel system components. Tighten connections or replace gasket. Check compression or leakage. Check or replace fuel filter. Clean or clear restricted exhaust system.

Problem

Engine sluggish, stumbles, lacks power, acceleration or high speed performance, hot or cold.

Cause

Defective ignition system. Defective fuel system. Restricted exhaust system. Loss of compression. Carbon build up in engine. Defective valve action. Thick engine oil. Wrong, bad or dirty fuel.

Solution

Check ignition system components. Check fuel system components. Check catalytic converter, muffler and tail pipe. Check or test compression.Service engine. Check tappet clearance, check cam lobe. Use specified engine oil. Change fuel or use recommended fuel.

Problem
Engine lacks power or high speed performance when hot only.

Cause
Engine overheats. Choke stuck. Manifold heat control valve stuck. Vapor lock.

Solution
Check cooling system. Free, repair or replace choke stuck. Free valve. Use different fuel or shield fuel line.