Recent Topics
Old socks
by Marco620
Today at 12:54 AM
Thanks Bitogers
by Marco620
Today at 12:27 AM
Matic-D alternative for Nissan
by NattyBoh
Today at 12:01 AM
Honda Pilot VCM Sludge
by FranklinJL
Yesterday at 11:01 PM
5.7 Hemi water pump
by mobilaltima
Yesterday at 08:38 PM
call me crazy
by mobilaltima
Yesterday at 08:33 PM
Conventional oil with extended filter, can I skip
by RegDunlop
Yesterday at 08:20 PM
Inconsiderate people....
by montero1
Yesterday at 08:02 PM
Everyones Favorite 5w30 Dino And Why?
by crazyoildude
Yesterday at 07:48 PM
Purolator L36135 - 9k miles
by webfors
Yesterday at 07:35 PM
Keeping rodents out of engine bay?
by Klutch9
Yesterday at 06:42 PM
Valvoline VO-105, 7,400 miles CUT OPEN
by car51
Yesterday at 06:35 PM
Newest Members
BkOB, 3rdsaturn, barajasrichie, Rocdoc27, andy1400
59197 Registered Users
Who's Online
19 registered (Bandito440, bandz7, Al, d00df00d, bourne, 3 invisible), 823 Guests and 15 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
59197 Members
66 Forums
254962 Topics
4188022 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3211604 - 12/09/13 06:57 PM 2008 Accord I4 low idle/vibration help
Brybo86 Offline


Registered: 10/08/11
Posts: 2097
Loc: Chicago, IL
I thought I fixed my low rev/ vibration issue but obviously not. 2008 Honda Accord 2.4L I4 86kmiles

Scenario:
When the car is warm from driving I get an RPM of about 550-600 which also gives me some not so nice vibrations. This only happens then the car has been completely stopped for at least 2 seconds, Such as stopping at a light. It only happens in gear, D or R, with the brake on, either foot or handbrake it doesn't matter.
I took it to the dealer to have them check the engine and trans mounts. They come back 1 hr later and they say they all look good and they didn't feel any vibes...???

I looked in the service manual for the process to check the front vacuum controlled engine mount. The vacuum from the solenoid is between 20-22 inhg. It also changes to 0 with revs. Solenoid seems to be working fine. The mount holds vacuum well with no drop in vacuum after a few mins.

So according to the service manual when the vacuum line going to the mount is removed from the solenoid (or vacuum is released using my mityvac) the engine should change in idle smoothness. If the vacuum is at 20 when Idle the mount is working and should be smooth. when engine is revved the vacuum is released and the mount functions without vacuum.

So since my car does not change its vibrations with or without vacuum I think the mount is bad and should be replaced.
Dealer did not buy this argument.

Can anyone who has a 2008-2011 I4 check to see if they get increased vibes when the top vacuum hose is removed from the mount solenoid?
It is down and left from the oil dipstick in the pic with three tiny dots next to it, little rubber boot on top. there are 2 hoses coming out towards the front of the car. remove the top one going to the mount and please check if there are and increased vibrations. Thanks again.


If you don't have this car/engine do you have any advice/thoughts?
_________________________
08 Honda Accord EX-L 2.4L RP 0w20 116k
01 Kymco People 50
95 Lexus LS400 M1 AFE 0w30 178k
95 Yamaha Jog
86 Kawasaki 454Ltd Valvoline 20w50 18k

Top
#3211610 - 12/09/13 07:04 PM Re: 2008 Accord I4 low idle/vibration help [Re: Brybo86]
gregk24 Offline


Registered: 04/13/13
Posts: 4550
Loc: FL, USA
I have a 2006 Honda Accord 2.4 and its not the smoothest Ive ever felt, however, it is the smoothest idle of any 4 cylinder Ive felt.
_________________________
2012 Honda Accord EX-L
Taffeta White - Ivory
41,xxx miles

PPPP 0w20 / Fram Ultra

Top
#3211667 - 12/09/13 08:10 PM Re: 2008 Accord I4 low idle/vibration help [Re: Brybo86]
Tosh Offline


Registered: 05/12/05
Posts: 2672
Loc: Silicon Valley
Seems like you are diagnosing it correctly according to the FSM. Odd that the stealer isn't agreeing and jumping at the chance for some warranty work...

Top