Some 2004 Toyota Tacoma and Tundra pickup trucks may take an overly long time to restart after the engine has been shut down for several minutes. One possible cause of the trouble, Toyota Motor Corp. said, is a loss in residual fuel pressure. A defective fuel pump suction tube assembly is the likely culprit.
To determine if it is, connect a fuel pressure gauge to the fuel rail and start the engine. Now shut the engine down and look at the gauge reading. If the fuel system holds pressure, look elsewhere for the problem. If the fuel pressure drops, the suction tube is the likely villain. Installing a modified suction tube assembly should eliminate further starting trouble.
For Tacomas, order part No. 77203-04060 for 2RZ-FE and 3RZ-FE engines; and part No. 77203-04070 for 5VZ-FE engines.
For Tundras, order part No. 77203-0C050.
The suction tube gasket, which goes by part No. 77169-04010, is the same for all models and engines.
"Factory Fixes" is written by Jim DePalma, a 30-year veteran of the auto repair business who has served stints as a service manager, parts manager and ASE-certified technician. His column provides vehicle manufacturers' authentic factory technical service bulletins (TSBs) that have been condensed for easier reading. Mr. DePalma advises that techs always check with a dealer or repair information system for the latest revisions before starting to work on a vehicle. He can be reached via e-mail at [email protected].