4T65E Transmission Sonnax Boost Valve & Sleeve Kit

Includes:
1 Boost Sleeve Assembly

Description:
Vehicles with a 4T65E transmission often exhibit such problems as soft upshifts, delayed reverse and low line rise. This can be traced to wear of the OE boost sleeve assembly. The OE boost sleeve assembly consists of 2 steel valves and a steel plug that resides in the boost sleeve. The steel  valves wear the aluminum sleeve and allow leakage of boost pressure. The OE boost assembly is not serviceable separately from OE, which forces the purchase of a new valve body.

Features:
  • Valves made of hard-anodized aluminum for better wear resistance
  • Valves are designed to increase oil lubricity, center the valves and increase longevity
  • Line boost valve is no longer than the OE valve to increase wear surface area
  • Sleeve is made of highly wear-resistant aluminum and has been designed with oil channels to evenly distribute boost valve oil.
  • Kit is a drop-in replacement and requires no machining

APPLICATIONS

Allure 2005-2008 V6 3.6L 3.8L 4 Spd FWD

Century 2000-2005 V6 3.1L 4 Spd FWD

LaCrosse 2005-2009 V6 3.6L 3.8L; V8 5.3L 4 Spd FWD

LeSabre 1998-2004 V6 3.8L 4 Spd FWD

Lucerne 2006-2011 V6 3.8L 3.9L 4 Spd FWD

Park Avenue, Ultra 1997-2005 V6 3.8L 3.8L SC 4 Spd FWD

Regal 1997-2004 V6 3.8L 3.8L SC 4 Spd FWD

Rendezvous 2002-2007 V6 3.4L 3.5L 3.6L 4 Spd FWD AWD

Riviera 1997-1999 V6 3.8L 4 Spd FWD

Terraza 2005-2007 V6 3.5L 3.9L 4 Spd FWD AWD

Impala 2000-2006 V6 3.4L 3.8L 4 Spd FWD

Impala 2000-2006 V6 3.8L W S.C. 4 Spd FWD

Impala 2006-2011 V6 3.5L 3.9L; V8 5.3L 4 Spd FWD

Malibu 2006-2007 V6 3.9L 4 Spd FWD

Monte Carlo 1997-2005 V6 3.4L 3.8L 4 Spd FWD

Monte Carlo 1997-2005 V6 3.8L W S.C. 4 Spd FWD

Monte Carlo 2006-2007 V6 3.5L 3.9L; V8 5.3L 4 Spd FWD

Uplander 2005-2008 V6 3.5L 3.9L 4 Spd FWD AWD

Venture Van ,APV 1999-2005 V6 3.4L 4 Spd FWD AWD

Aurora 2001-2002 V6 3.5L 4 Spd FWD

Intrique 1998-2002 V6 3.5L 3.8L 4 Spd FWD

Silhouette 1999-2004 V6 3.4L 4 Spd FWD

Aztek 2001-2006 V6 3.4L 4 Spd FWD AWD

Bonneville 1997-2006 V6 3.8L 4 Spd FWD

Bonneville 1997-2006 V6 3.8L W S.C. 4 Spd FWD

Grand Prix 1997 V6 3.8L W S.C. 4 Spd FWD

Grand Prix 1998-2007 V6 3.1L 3.8L 4 Spd FWD

Grand Prix 1998-2007 V6 3.8L W S.C. 4 Spd FWD

Grand Prix 2005-2008 V8 5.3L 4 Spd FWD

G6 2005-2009 V6 3.9L 4 Spd FWD

Montana SV6 2005-2008 V6 3.5L 3.9L 4 Spd FWD AWD

Relay 2005-2007 V6 3.5L 3.9L 4 Spd FWD AWD

S80 1999-2004 L5 2.5L 4 Spd FWD

XC90 2003-2006 L5 2.5L 4 Spd FWD

 

 

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WARRANTY requests need to be accompanied with the appropriate code as diagnosed by a professional transmission shop.  Vehicles must be professionally diagnosed for solenoid failure prior to purchase.  We cannot guarantee any one item will fix all transmission problems.  Solenoid failure is often accompanied by additional failures; for example valve body failures, internal wear or damaged hard parts.  
This item is packaged for wholesale distribution to professional transmission shops 

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