Thunk on start.

2022 tundra. Now and then when starting I get a clunk from the engine. Starts and runs fine. I searched but not able to find the post where the factory has some flash to fix it. Posted by someone one here along with peddle Lag flash. Can anyone point me in the right direction or let me know what flash Toyota does. Ty

 

There is a TSB for this issue and a related fix also addresses the throttle lag when trying to drive off from a stopped condition. Tell your dealer you have both complaints. And it is free! Here are some of the older TSB's.

• T-SB-0006-22 MY22 Tundra SR: LTA Malfunction Warning Message with DTC U013787
• T-SB-0011-22 MY22 Tundra: MIL (Malfunction Indicator Light) ON with DTC P059A71
• T-SB-0023-22 MY22 Tundra: Head Unit Software Update (Panasonic) - Rev1
• T-SB-0057-22 MY22 Tundra, Tundra HV (Platinum, 1794, TRD Pro, or LTD w/ Power Package): SRS MIL ON - Qi Charger Interference
• T-SB-0068-22 MY22 Tundra: Howl Noise from Front Lower Control Arms
• T-SB-0069-22 MY22 Tundra, Tundra HV: Electronic Power Steering (EPS) Light ON with DTC C05D604 and/or C15D704 - Rev1
• T-SB-0070-22 MY22 Tundra, Tundra HV: Rear Air Suspension Feels Rough Over Bumps
• T-SB-0110-22 MY22+ Tundra: Pop/Clunk Noise on Initial Engine Start (Cold)
• T-SB-0111-22 MY22+ Tundra: Hesitation From Stop and Surge Concerns
• T-SB-0114-22 MY22+ Tundra, Tundra HV: Loose Side-seal Retainer Under the Tonneau Cover Weather Strip/Side-seal

 

'Thunk on start'...sounds like me.

 

Thank you so much.

 

Thanks all. At Toyota now and it’s getting done.

 

Same, groans and random pops