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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Engine Control System & Engine Component Tests - EEC-V - Diesel 7.3L (99F E Series & 99F F450/550)) >> Hard Start/No-Start Diagnostic Procedures >> Test 10: Glow Plug System Operation >> Possible Causes (California & Federal)

Possible Causes (California & Federal)

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Insufficient glow plug "On" time will not allow enough heat to accumulate in combustion chamber resulting in a hard start condition. If glow plug system "On" time is insufficient, probable cause is a faulty wiring harness connector, bad ground connection or defective glow plug control module or relay. Look very carefully for poor connections, burnt or loose fitting pins that will cause high resistance.

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