extoyota lover 
2003 Toyota Tacoma Xtracab 2dr Xtracab 4WD SB (2.7L 4cyl 5M)
not what they used t o be
 Bought this in late 2002. At 500 miles 
the motor started to knock/thud under 
light loads. One dealer said they 
thought the noise was injector related; 
imagine that knocking injectors. 
Another dealer, after telling me 
diagnosis may cost me said "we hear it 
but don't know what it is, these 2.7L 
engines are typically noisy, must be 
normal" They wrote it up as "no 
correctable condition found" sort of an 
oxymoron. So if you don't know what it 
is, how do you know it is not 
correctable.  I have found a site at 
Automotive Forums.com where other have 
the same issue.