Toyota2010–2012

Dyna 4.0: Common faults & known problems

Common faults & known problems

1 known fault documented in workshop bulletins. Of these, one concerns the engine and fuel system. Symptoms, causes, repair steps and part numbers are shown where supplied.

Technical specifications

Engine & fuel system

1 documented fault — symptoms, causes and workshop fixes.

Engine malfunction indicator lamp (MIL) illuminated. Possible trouble codes stored: P0671, P0672, P0673, P0674

Affects All models with 4-cylinder Diesel engine, →10/14.P0671P0672P0673P0674Fit new part

Cause

Defective glow plugs.

Repair

Fit new glow plugs.

Parts1 part

Parts listed in the bulletin
Part	Part number	Qty
Glow plug	19850-30030, or 19850-30040	4

Data: Motorwise Workshop. Bulletin 1.

Glossary

Technical terms used in this guide.

Glow Plugs: Heaters that help a diesel engine start from cold

Frequently asked questions

What are the common faults with the Toyota Dyna 4.0?

This guide contains one workshop bulletin for the Toyota Dyna 4.0. Of these, one concerns the engine and fuel system. Symptoms, causes, repair steps and part numbers are shown where supplied.

Does every Toyota Dyna 4.0 have these faults?

No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.

Can I check for Toyota Dyna 4.0 faults myself?

Many of them. The documented symptoms can be seen, heard or felt during a test drive.