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Home >> Jeep >> 1990 >> Wagoneer >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/O Codes >> Hard Starting

Hard Starting

Check idle control, EGR valve and control circuits for proper operation. See SYSTEM/COMP TESTS article. Check for A/C ON signal at ECU and for overcharged A/C system. See SYSTEM/COMP TESTS article. Verify injector circuits and fuses for proper operation and check for restricted fuel lines. See BASIC TESTING article.