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Injection Pumps
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Turbochargers
Diesel Owner Tips
Troubleshooting
Garrett Turbocharger troubleshooting guide
Clogged air filter element
Replace element according to engine manufacturers recommendations
Obstructed air intake duct to turbo compressor
Remove obstruction or replace damaged parts as required
Obstructed air outlet duct from compressor to intake manifold
Remove obstruction or replace damaged parts as required
Obstructed intake manifold
Refer to engine manufacturers manual & remove obstruction
Air leak in duct from air cleaner to compressor
Correct leak by replacing seals or tightening fasteners as required
Air leak in duct from compressor to intake manifold
Correct leak by replacing seals or tightening fasteners as required
Air leak at intake manifold to engine joint
Refer to engine manufacturers manual & replace gaskets or tighten fasteners as required
Obstruction in exhaust manifold
Refer to engine manufacturers manual & remove obstruction
Obstruction in muffler or exhaust stack
Remove obstruction or replace faulty components
Gas leak in exhaust manifold to engine joint
Refer to engine manufacturers manual & replace gaskets or tighten fasteners as required
Gas leak in turbine inlet to exhaust manifold joint
Replace gasket or tighten fasteners as required
Gas leak in ducting after the turbine outlet
Refer to engine manufacturers manual & repair leak
Obstructed turbocharger oil drain line
Remove obstruction or replace line as required
Obstructed engine crankcase vent
Refer to engine manufacturers manual, clear obstruction
Turbocharger center housing sludged or coked
Change engine oil & oil filter, overhaul or replace turbo as required
Fuel injection pump or fuel injectors incorrectly adjusted
Refer to engine manufacturers manual - replace or adjust faulty component(s) as required
Engine camshaft timing incorrect
Refer to engine manufacturers manual & replace worn parts
Worn engine piston rings or liners (blowby)
Refer to engine manufacturers manual & repair engine as required
Internal engine problem (valves, pistons)
Refer to engine manufacturers manual & repair engine as required
Dirt caked on compressor wheel and/or diffuser vanes
Clean using a
Non-Caustic
cleaner &
Soft Brush
. Find and correct source of unfiltered air & change engine oil & oil filter
Damaged turbocharger
Analyze failed turbocharger, find & correct the cause of failure, overhaul or replace turbocharger as required