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Sonnax

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Transmission

Printpartsummary
Symptoms:
  • 2-3 Flare at light throttle
  • Harsh upshifts, downshifts and Forward
Cause:

A broken clutch pressure control(CPC) valve spring

Correction:

This replacement spring has a larger wire diameter, thereby decreasing total spring stress by more than 25%.

CPC Valve Spring

Part No.

88894

Honda, Acura 4-Speed, 3-Shaft

  • 88894_combo

  • CPC Valve Spring

Small_88894_combo Small_88894

CPC Valve Spring

Part No.

88894

1996-1999 Honda Civic, Del Sol, CR-V, .480" long, for adjustable CPC valve

Complaint:

  • 2-3 Flare at light throttle
  • Harsh upshifts, downshifts and Forward

Cause:

A broken clutch pressure control(CPC) valve spring


Correction:

This replacement spring has a larger wire diameter, thereby decreasing total spring stress by more than 25%.

  • Length: 0.480"

Common problems in the A4RA, B4RA and M4RA transmissions are harsh upshifts, downshifts and forward engagements, while reverse engagement is fine. These problems can be caused by a broken CPC (clutch pressure control) valve spring. The spring is located in the secondary valve body and is not available from Honda. Sonnax has developed a replacement spring 88894 that has a wire diameter larger than the OE design. This significantly reduces the stress on the spring, preventing future breakage.

Early Design = .260" spring pocket; .480" long spring

Late Design = .390" spring pocket; .625" long spring

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Contact a Sonnax Distributor to purchase this part.