2000 Milly S 2.3L, - bad idle below 2000 RPM, dies when I put it in drive or reverse - Mazda Forum
 
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post #1 of 4 (permalink) Old 09-10-2017, 08:38 PM Thread Starter
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Unhappy 2000 Milly S 2.3L, - bad idle below 2000 RPM, dies when I put it in drive or reverse

Hello all, I believe I'm having the nefarious vacuum issue with my Millenia. I just had it at the shop for emissions back in May 2017 and it had a few misfires going on, but ran fine. I took it home and checked around the engine, and found the large black rubber "boot" a the front right (driver side) of the engine was completely torn, but the car still ran so I just duct-taped it up as best I could for now.

Suddenly mid-summer it started sputtering when the engine was warmed up, usually when switching gears, and then a week or so ago it finally started dying. Had to tow it home from work, as it won't stay running when I put it into drive or reverse anymore. So I believe it's vacuum-related due to all the threads here with similar issues and fixes. It's got 160,000 miles on it exactly as of time of death.

So as I dig into the vacuum tubes and tees to try and fix it, I'd like to replace that black intake boot, or maybe it's called a mass air boot? I don't know what it's called to order a new part, and hope someone can help with the proper name or part number.
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post #2 of 4 (permalink) Old 09-11-2017, 09:06 AM
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Originally Posted by JaredTheDragon View Post
Hello all, I believe I'm having the nefarious vacuum issue with my Millenia. I just had it at the shop for emissions back in May 2017 and it had a few misfires going on, but ran fine. I took it home and checked around the engine, and found the large black rubber "boot" a the front right (driver side) of the engine was completely torn, but the car still ran so I just duct-taped it up as best I could for now.

Suddenly mid-summer it started sputtering when the engine was warmed up, usually when switching gears, and then a week or so ago it finally started dying. Had to tow it home from work, as it won't stay running when I put it into drive or reverse anymore. So I believe it's vacuum-related due to all the threads here with similar issues and fixes. It's got 160,000 miles on it exactly as of time of death.

So as I dig into the vacuum tubes and tees to try and fix it, I'd like to replace that black intake boot, or maybe it's called a mass air boot? I don't know what it's called to order a new part, and hope someone can help with the proper name or part number.
Hi JaredThe Dragon,


Mazda calls it a "Duct". O.E.M. Part#: KJ01-13-221 and it lists for $34.75(usd) plus shipping. I replaced one on my 1995 S model as well, I also replaced this small intake boot as well. ---> Resonator Grommet - Mazda (KJ01-13-245) and lists for $5.34 (usd) plus shipping... (this one connects the resonator to the throttle body assembly. = a really nice smooth quiet idle for these miller cycle engines! She just purrs now!!!


https://www.tascaparts.com/oem-parts...ItM2wtdjYtZ2Fz


https://www.tascaparts.com/oem-parts...ItM2wtdjYtZ2Fz


Good Luck Sir!


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post #3 of 4 (permalink) Old 09-11-2017, 12:38 PM Thread Starter
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Thanks, Luroc! That definitely looks like the right part. Much appreciated.I'm new here and can't post pics yet, but I'm glad you knew what I meant from the description alone.
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post #4 of 4 (permalink) Old 10-02-2017, 08:47 AM
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Originally Posted by JaredTheDragon View Post
Thanks, Luroc! That definitely looks like the right part. Much appreciated.I'm new here and can't post pics yet, but I'm glad you knew what I meant from the description alone.

Hi JaredTheDragon,


Any updates on how she's idling now after replacement of said new o.e.m. intake boots...?


Just checking in.


Thanks


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