Tacoma ticking under acceleration

OP, check see if it might be coming from the cats. Ive heard of this before and it was the cats. Do this by putting your truck on JACK STANDS, not jacks. One its up on 4 solid stands, with drive gear engaged, have someone rev it while youre near the cats. Also, while the engine is going, check to hear if it's coming from the engine bay. Might be a bad bearing or possibly a belt. Or maybe it your drive train. Rev that thing and pin point the source of the noise. Once you do that, youre halfway done to getting it fixed.

 

Toyota TSB EG021-06 APR 06 - Ticking Noise Between 2,000-2,500 RPM

Toyota Supports ASE Certification Page 1 of 1

EG021-06

Title:

EXHAUST TICKING NOISE

Models:

’05 – ’06 Tacoma

Technical Service

BULLETIN

April 7, 2006

Some customers may experience a ticking or tapping–type noise from the engine area

at 2000 – 2500 rpm during acceleration that is most noticeable after a cold soak.

New exhaust manifolds have been developed to minimize this condition.

2005 – 2006 model year Tacoma vehicles produced BEFORE the Production


Change Effective VIN shown below.

MODEL ENGINE PRODUCTION CHANGE EFFECTIVE VIN

Tacoma 1GR–FE 5TE*U##N#6Z217578

PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME QTY

17140–0P010 17140–0P070 Manifold Assembly, Exhaust, RH 1

17150–0P010 17150–0P070 Manifold Assembly, Exhaust, LH 1

17173–0P010 Same Gasket, Exhaust Manifold 2

Replace both LH and RH exhaust manifolds.

Refer to the Technical Information System (TIS), 2005 or 2006 model year Tacoma

Repair Manual: 1GR–FE Engine Mechanical: Partial Engine Assy: Replacement.

OP CODE DESCRIPTION TIME OFP T1 T2

EG5027 R & R Exhaust Manifolds 1.6 17140–0P010 91 41

Applicable Warranty*:

The Remove & Reinstall (R & R) of the Exhaust Manifold (P/N 17140–0P010 and

17150–0P010) due to the attached Catalytic Converter, is covered under the Toyota

Federal Emissions Warranty. This warranty is in effect for 96 months or 80,000 miles,

whichever occurs first, from the vehicle’s in–service date.

* Warranty application is limited to correction of a problem based upon a customer’s specific complaint.

ENGINE

Introduction

Applicable

Vehicles

Production

Change

Information

Parts

Information

Repair

Procedure

Warranty

Information

 

There was a TSB on the V6 to reflash the ECU to fix pinging.

 

This could be the problem

 

Workd when mine did it around 30-40k miles. I thought it was getting warmer and just starting to ping so I started running 91 octane then it kept getting warmer and kept pinging worse and worse. Saw the TSB was released a week or so before I went into the dealer, so early he didn't even know it existed.

Hasn't happened since.

 

OP, try that. Go to a dealer and have your ecu flashed

 

That is where I work.

 

weird then?