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Home >> Isuzu >> 2007 >> i-290 LS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Automatic Transaxle - 4T80-E - Service, Diagnosis & Troubleshooting) >> Whine Noise Varying with RPM or Fluid Pressure

Whine Noise Varying with RPM or Fluid Pressure

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Whine Noise Varying with RPM or Fluid Pressure

Checks Action
DEFINITION: A high pitch whine which will intensify with engine RPM or which is Oil Pressure sensitive
Oil Pump System Verify that the noise is internal to the oil pump during a preliminary oil pressure check. An increase in line pressure will vary an oil pump noise.
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