Thanks for the enlightenment
Codifus wrote:
> AS wrote:
>
>> There are systems that actually control the flow of gases in the
>> muffler to get the needed backpressure for some operating conditions.
>> Not in the 2000 Maxima, that i know of.
>>
>>
>> dgeesaman@[EMAIL PROTECTED]
wrote:
>>
>>> You do bring up a point I had thought about and disregarded.
>>>
>>> An overly restrictive muffler or some other clog could definitely
>>> reduce power. But you will feel the loss in power, probably well
>>> before you see a change in fuel economy. The OP described loss in
>>> fuel economy only.
>>>
>>> As for too little restriction, these cars don't have issues (aside
>>> from emissions legality and sound level) when running straight pipe
>>> exhausts. I believe the too little restriction thing is largely a
>>> myth, in fact.
>>>
>>> Dave
>>>
>>> On Jan 3, 1:51 am, AS <do...@[EMAIL PROTECTED]
> wrote:
>>>
>>>> A muffler with the wrong size (capacity) or wrong diameter pipe will
>>>> affect more than fuel consumption, can even lead to engine
overheating,
>>>> poor performance, etc.
>>>>
>>>> Remember that for some engine conditions require back pressure in the
>>>> exhaust pipe and others require free flow.
>>>>
>>>>
>>>>
>>>> pgg wrote:
>>>>
>>>>> A couple months ago, my 2000 Maxima with 68,000 miles start making
>>>>> terrible clunking noises from the muffler area.
>>>>
>>>>
>>>>
>>>>> My head wasn't on straight that day and I took it over to Meineke.
>>>>> A pipe
>>>>> was rusted out and hanging...they said even though the original
>>>>> stainless
>>>>> steel muffler was fine, they had to replace the muffler to replace
the
>>>>> connecting pipe. I said "fine".
>>>>
>>>>
>>>>
>>>>> I know...dumb move in hindsight and I wish I would have taken it
>>>>> elsewhere.
>>>>
>>>>
>>>>
>>>>> Well the Meineke muffler was $220 or something like that and
>>>>> looks/works
>>>>> fine.
>>>>
>>>>
>>>>
>>>>> However I swear I get 3-4 MPG less than I used to. Possible? I
>>>>> also got
>>>>> the MAF sensor replaced in the same time period...- Hide quoted text
-
>>>>
>>>>
>>>>
>>>> - Show quoted text -
>>>
>>>
>>>
>>>
> Yes, the 2000 thru 2002 Maxima have variable mufflers that "open up" at
> higher RPMs.
>
> My guess is it's the MAF change and the computer is still adjusting to
it.
>
> CD
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