No Boost
- Wastegate actuator not functioning. See appropriate SELF-DIAGNOSTICS article.
- Compress air intake hose collapsed. Repair or replace as required.
- Compressor manifold hoses leaking. Tighten hose clamps.
- Turbocharger turbine or compressor wheel damage. Replace turbocharger.
- Turbocharger bearings seized. Replace turbocharger.
- Clogged air cleaner element or restriction upstream of compressor. Repair or replace as required.