Tegger - 1MHZ-FE question.

"As a very rough partial guideline, avoid any '99-'02 V6 Honda with an
automatic transmission, or any Toyota with the 1MZ-FE V6 engine."

Tegger,

What are the problems with the 1MH-FE engine? Mine has a noisy and
disturbing valve train sound when I start out cold. It goes away when
the trans shifts into second (or third?). Problem does not occur when
the engine is warm.

Thanks, Gary

G Mulcaster > wrote in
:

> "As a very rough partial guideline, avoid any '99-'02 V6 Honda with an
> automatic transmission, or any Toyota with the 1MZ-FE V6 engine."
>
> Tegger,
>
> What are the problems with the 1MH-FE engine?



The only problem I know of has to do with sludge buildup with early
1MZ-FE's. These engines are not as tolerant of neglected oil changes as
other engines.



> Mine has a noisy and
> disturbing valve train sound when I start out cold. It goes away when
> the trans shifts into second (or third?). Problem does not occur when
> the engine is warm.



Are you using an OEM oil filter? Are you sure it's valve noise and not
piston slap? How many miles on this engine?



--
Tegger

On Sat, 28 Feb 2009 01:25:02 +0000 (UTC), Tegger >
wrote:

>G Mulcaster > wrote in
:
>
>> "As a very rough partial guideline, avoid any '99-'02 V6 Honda with an
>> automatic transmission, or any Toyota with the 1MZ-FE V6 engine."
>>
>> Tegger,
>>
>> What are the problems with the 1MH-FE engine?
>
>
>
>The only problem I know of has to do with sludge buildup with early
>1MZ-FE's. These engines are not as tolerant of neglected oil changes as
>other engines.
>
I change oil (Mobil-1 synthetic) and filter every 3000 miles so
sludging should not be a problem.
>
>> Mine has a noisy and
>> disturbing valve train sound when I start out cold. It goes away when
>> the trans shifts into second (or third?). Problem does not occur when
>> the engine is warm.
>
>
>
>Are you using an OEM il filter? Are you sure it's valve noise and not
>piston slap? How many miles on this engine?

I use OEM filters occasionally. I'll try one next oil change to see
if it makes a difference. Not positive it is valve train noise.
It's an '02 Sienna with 85,000 miles.

I reported the problem before the warranty ran out at the three year
point. It was test driven by the dealership and not considered
significant. It is slowly getting worse.

Thanks for the reply, Gary