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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Service, Diagnosis & Troubleshooting) >> Flare - Engine Restart (M33 Only)

Flare - Engine Restart (M33 Only)

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Flare-Engine Restart (M33 Only)

Checks Causes
Low fluid level. Insect transmission fluid level. Refer to Transmission Fluid Checking Procedure . Incorrect fluid level.
  • Restricted pump filter.
  • Control Valve body ball check valve sticking or stuck open.
 Fluid restriction.
  • Restricted Secondary Fluid Pump filter or blocked pump intake.
  • Secondary Fluid Pump stuck off. Refer to DTC P2797 (M33 Only) .
  • Valve body ball check valve stuck or leaking.
  • Oil circuit restriction or leaks.
  • Secondary Fluid Pump relief valve stuck open.
  • Secondary Fluid Pump motor overheating.
  • Worn or leaking pump.
 Low or no Secondary Fluid Pump volume.
Refer to Slips in First Gear . Forward Clutch Assembly not applying.
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