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10. CHECK EVAPORATIVE EMISSIONS (EVAP) SYSTEM • Disconnect the canister control valve (1) hose. • Place a stiff piece of paper over the hose end, start engine. Does vacuum hold the paper? Yes >> Check for a vacuum leak in EVAP system (refer to EVAP system) and refer to EVAP control cir- No >> Go to the next step. 11. CHECK ENGINE CYLINDER COMPRESSION • Check engine cylinder compression. • Compression should not be less than 1,000 kPa, and not vary more than 25 percent from cylinder to cylinder. Is engine compression correct? Yes >> Go to the next step. No >> Repair as necessary. 12. ADDITIONAL CHECKS • Check the following for possible additional causes: − Driveline Are the checks OK? Yes >> See Diagnostic Help for additional information. No >> Repair as necessary. ELECTRONIC ENGINE CONTROLS - 2.4L ENGINE SYMPTOM DIAGNOSIS VISMD030007 03
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