Problem Reports
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2002 Nissan Xterra Problems
Abnormal Noise From Front of Engine
A whining or buzzing type noise may develop from the timing chain area caused by excess slack in the secondary timing chains. Nissan has issued a service bulletin (NTB09-128) regarding this issue. Replacement of both secondary timing chains and their tensioner shoes will be necessary to repair this concern. As part of this repair, the engine oil and filter should also be replaced.
Engine Stall and/or No Start Condition
The distributor shaft bearing can become rusty, and seize causing the engine to stall or not start. The failed distributor will commonly require replacement.
Coolant Outlet on Lower Intake Maniflod May Leak
The coolant outlet on the front of the lower intake manifold may develop a coolant leak.
Fuel Injectors May Fail and Cause Drivability Concerns
The fuel injectors can fail and cause drivability problems. Often there is no Check Engine light and the failures can be caused by corrosion of the connector, clogging beyond the point of cleaning, and/or internal failures.
Check valve clearance
Valve clearances for this engine are shim adjusted and should be checked periodically to help maximize engine life. Another good time to check the valve clearances is when the valve cover gasket is being replaced.