Operation CHARM
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Mercedes Benz
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1982
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300SD (126.120) L5-3.0L DSL Turbo (617.951)
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Complaints, Causes and Remedies
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With Transmission 722.3, 722.4, 722.5 Only
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Upshifts
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Complaint
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Engine Speed Fall Too Slowly or Not at All on 1-2-3 Upshift
Engine Speed Fall Too Slowly or Not at All on 1-2-3 Upshift
CAUSE/REMEDY:
1.
Vacuum line to vacuum modulator on transmission badly routed or kinked. Re-route vacuum line without kinks.