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Local rate 0845 459 2049, from overseas + 44 (0) 1242 572909 - info@turbocomp.co.uk Company No. 7100893 |
VAUXHALL TURBOCHARGER FAULT DIAGNOSIS CHART
Remember! If a turbo fails once it may be the turbo at fault, if it fails a second time there is usually an underlying problem which has caused the turbocharger to fail - these are suggested causes of failure, customers should seek the advice of a local garage for diagnostics.
Clogged air filter |
Replace air filter |
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Obstructed air intake to turbo |
Remove Obstruction |
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x |
x |
x |
Obstructed air outlet duct from compressor to intake manifold |
Remove Obstruction |
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x |
x |
x |
x |
Obstructed intake |
Remove Obstruction |
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x |
x |
x |
x |
x |
x |
Air leak in duct from air cleaner to compressor |
Replace seals or tighten fasteners |
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x |
x |
x |
Air leak in duct from compressor to intake manifold |
Replace seals or tighten fasteners |
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x |
x |
x |
Air leak at intake manifold to engine joint |
Replace seals or tighten fasteners |
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x |
x |
Obstruction in exhaust manifold |
Remove Obstruction |
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x |
x |
x |
Obstruction in muffler or exhaust stack |
Remove Obstruction |
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| x | Gas leak in exhaust manifold to engine joint |
Replace seals or tighten fasteners |
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x |
x |
x |
x |
Gas leak in turbine inlet to exhaust manifold joint |
Replace seals or tighten fasteners |
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x |
x |
x
|
x
|
x |
x
|
x |
Gas leak in ducting after turbine outlet |
Repair gas leak |
|
x |
x |
x |
Obstructed turbo oil drain line |
Remove obstruction or replace oil drain line |
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x |
x |
x |
Obstructed engine crankcase vent |
Clear obstruction |
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x |
x |
Turbo center housing sledged or coked |
Change engine oil, filter, replace turbo as required |
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x |
x |
x |
x |
x |
x |
Fuel injection pump or injectors incorrectly adjusted |
Replace or adjust injectors and/or injection pump |
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| x
|
x |
x
|
x
|
x |
x |
Engine camshaft timing incorrect |
Check/reset timing |
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Worn engine rings or liners (blowby) |
Repair as needed |
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| x
|
x |
Internal engine problem (valves, pistons) |
Repair as needed |
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Dirt caked on compressor wheel |
Clean with non caustic cleaner and soft brush, change filters |
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Damaged turbo |
Analyze turbo to determine failure, replace turbo |