Hi. I have a 2004 Tacoma Prerunner 2.7 L 3RZ engine rattle or clatter that happens first thing in the morning. This rattle gets longer with colder mornings. It started maybe last year and now I am reminded of it.
The truck has 150k and oil level is at full. I have been running synthetic valvoline and mobil 1 since day 1 with the truck.
It runs perfectly fine. Just this weird unusual rattle that goes away once it warms up. I have seen other and older posts relating to a possible piston slap? Others have also said this is normal for this engine. And my dad listened to it and said it is in need of a valve job.
Any suggestions or ideas? Thanks.