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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 484 (Automatic Transaxle Diagnosis, Service & Repair - 4T65-E) >> Diagnostic Information and Procedures >> DTC P1811: Shift Timing >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table

  1. 7. This step inspects components that may cause low line pressure.
  2. 9. This step inspects or repairs components that may cause a maximum adapt and long 1-2 upshift.
  3. 11. This step inspects or repairs components that may cause a maximum adapt and long 2-3 upshift.
  4. 13. This step inspects or repairs components that may cause a maximum adapt and long 3-4 upshift.
Fig 1: DTC P1811 Diagnosis (Steps 1-8)
G01501789Courtesy of GENERAL MOTORS CORP.
Fig 2: DTC P1811 Diagnosis (Steps 9-10)
G01501790Courtesy of GENERAL MOTORS CORP.
Fig 3: DTC P1811 Diagnosis (Steps 11-13)
G01501791Courtesy of GENERAL MOTORS CORP.
Fig 4: DTC P1811 Diagnosis (Steps 14-16)
G01501792Courtesy of GENERAL MOTORS CORP.
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