How to Troubleshoot Engine Failure in My Toyota Truck

Engine failure may leave you stranded in a remote setting.

Toyota trucks have a history of durability and it is not uncommon for engines to surpass 200,000 miles without any problems. When engine problems do occur in a Toyota truck, several troubleshooting steps will help you pinpoint and repair the problem. Many issues require inexpensive repairs, however a few issues may require expensive repairs. The repairs are either completed by a mechanic or by the owner if the tools and parts are readily available.

Difficulty:

Moderate

Instructions

things you'll need:

• Voltage meter
• Trickle charger
• Diagnostic reader

1. • 1

     Test the battery with a voltage meter. Attach a trickle charger to the battery and allow it to completely charge. Start the vehicle. If the power fails on a regular basis, replace the alternator.

   • 2

     Replace the fuel pump if the engine sputters and surges before it shuts down. The fuel pump will cause intermittent power failure that is noticeable to the driver. It will also prevent fuel from entering the engine and make it difficult to start the truck.

   • 3

     Clean the carburetor or fuel injectors if the engine will crank but will not start. The carburetor and injectors will become clogged and fuel will not be entering the engine. If the cleaning does not solve the problem, replace the spark plugs and attempt to start again.

   • 4

     Plug a diagnostic reader into the outlet located beneath the drivers side dash on Toyota truck models manufactured after 1995. Turn on the reader and allow it to communicate with the truck electronics. Check the reader for bad sensors that may cause engine failure. The fuel pressure sensor is a common problem and may require replacement.

   • 5

     Inspect the engine for large leaks and check all of the fluid levels. If one of the fluid is especially low and a large leak is present, check all of the gaskets for damage. Gaskets that have broken the seal will cause the engine to fail. Replace the blown gasket and the depleted fluids.

Tips & Warnings

• Perform regular maintenance checks to protect the engine and vital components of the truck.

• Begin troubleshooting as soon as problem becomes evident. This will help solve the issue before it causes the engine to fail.