Tech Tip: Stuck Oil Pressure Relief Valve on 2001-'02 Chrysler 3.3L and 3.8L Engines

Tech Tip: Stuck Oil Pressure Relief Valve on 2001-’02 Chrysler 3.3L and 3.8L Engines

There have been reported incidents of stuck oil pressure relief valve assemblies in the chain case cover. With a stuck oil pressure relief valve, the oil pressure is not regulated as it is supposed to be, resulting in possible low oil pressure and engine damage due to oil starvation.

There have been reported incidents of stuck oil pressure relief valve assemblies in the chain case cover.

With a stuck oil pressure relief valve, the oil pressure is not regulated as it is supposed to be, resulting in possible low oil pressure and engine damage due to oil starvation.

Note: This bulletin applies to vehicles built prior to Jan. 1, 2002 equipped with a Chrysler 3.3L or 3.8L engine.

When a short-block engine is replaced, replace the chain case cover assembly if any of the following symptoms are present:
• The vehicle exhibited low or no oil pressure
at idle;

• There is metal debris in the oil pan upon removal from engine;

• Main or rod bearing(s) are spun;

• Crankshaft rod or main journals are scored; or

• Intermittent oil light is flashing off and on.

Figure 1The purpose of replacing the chain case cover is to prevent damage to a second engine due to a stuck oil pressure relief valve. Before the oil filter adapter is reattached to the new short engine, verify that oil feed and return passages are clear of debris that may hinder oil flow or re-enter the oil pressure relief valve on the new engine.

See Figure 1.

Parts Required:
1 – Timing Chain Case Cover, P/N 05019333AA.

This bulletin supersedes technical service bulletin 09-007-01 dated Aug. 31, 2001, which should be removed from your files.

Some or all of this information was provided by the Automotive Parts Remanufacturers Association (APRA). For more information on technical bulletins available through APRA, call 703-968-2772 or visit www.AutoBulletins.com.

You May Also Like

Valvoline Celebrates Female Service Center Employees

As women make up more than half of all drivers in the United States, Valvoline is taking steps to increase their vehicle care confidence.

Valvoline Inc. announced it is working to redefine the vehicle care experience and that it is excited to share important automotive preventive maintenance tips during Women's History Month. The company says that in research studies, women have expressed an uneasiness when approaching vehicle service and general dissatisfaction with a lack of accessible, straightforward maintenance knowledge in the broader automotive care industry. As women make up more than half of all drivers in the United States, Valvoline is taking steps to increase their vehicle care confidence.

BorgWarner Announces Plan to Reduce Supply Chain Emissions

A partnership with Manufacture 2030 will support BorgWarner in reaching its Scope 3 emissions reduction goal.

Snap-on Continues to Offer Free Weekly Product Training Sessions

The online training and question and answer sessions are free of charge.

AMSOIL Introduces New OE 0W-40 100% Synthetic Motor Oil

The new OE 0W-40 is primarily for newer RAM HD trucks equipped with the 6.4-liter Hemi engine.

UniClutch Launches Clutch System in the United States

From Australian manufacturer Clutch Industries, UniClutch is a clutch system that delivers uncompromised performance.

Other Posts

ADAS Calibration Aborts

Knowing the common “hiccups” can save you time and money.

Fuel Pumps and Cranking

Diagnosing the problem comes down to understanding what causes a loss of fuel pressure.

Automotive Hall of Fame Announces Class of 2024 Inductees

Six honorees whose efforts helped shape the automotive and mobility marketplace will be recognized.

Castrol Turns 125, Debuts New Market Strategy

As part of the new strategy, Castrol will explore opportunities in battery thermal management, digital and service solutions and data center immersion cooling.