strange car vibration
Thread Starter
Driver School Candidate
Joined: Jul 2007
Posts: 41
Likes: 0
From: NJ
I think i just hold lexus to an impossible standard. Bottom line, cars are cars, imperfect machines. So, i'm going with option two and move on.
On the bright side, I was able to get recommended after market parts for exhaust and intakes.
On the bright side, I was able to get recommended after market parts for exhaust and intakes.
Rookie
Joined: Oct 2009
Posts: 65
Likes: 0
From: MD
I'd put my $.05 bet on fuel... try a different source or a booster as mentioned previously. Even reputable brands can have small amounts of water leak into their tanks, or some goofball put the wrong grade in the tank.
Pole Position
Joined: Aug 2007
Posts: 395
Likes: 1
From: LITHUANIA, Europe
it is not the fuel, it is something with firmwire of ECU of in some other place where ECU is involved.
I got same vibration problem last winter, but the winter ended without having the problem solved.
The car used to drop RPM to less the 500 and start shaking. Got it all recorded by dealer service computer, and sent for investigation...but as it was like a long chane for investigation, they asked for more info recorded and specificaly from gearbox, but the temperature rised already and this problem disapeared...
My car did this:
> Outside must be -4 Celsious or colder
> Must be in "D" standing still (with your foot on the brake)
> Just watch how the rews drop lower then 500...
I got same vibration problem last winter, but the winter ended without having the problem solved.
The car used to drop RPM to less the 500 and start shaking. Got it all recorded by dealer service computer, and sent for investigation...but as it was like a long chane for investigation, they asked for more info recorded and specificaly from gearbox, but the temperature rised already and this problem disapeared...
My car did this:
> Outside must be -4 Celsious or colder
> Must be in "D" standing still (with your foot on the brake)
> Just watch how the rews drop lower then 500...
Sorry for the thread revival but I noticed today after my car warmed up that if I turned on the interior HVAC fan, the idle rises to about 1000-1200RPM, then lowers once I turn the fan off... Is that normal? There's a slight vibration from the idle rising as the engine is slightly under more load
Advanced
Joined: Jan 2015
Posts: 580
Likes: 28
From: BC
Sorry for the thread revival but I noticed today after my car warmed up that if I turned on the interior HVAC fan, the idle rises to about 1000-1200RPM, then lowers once I turn the fan off... Is that normal? There's a slight vibration from the idle rising as the engine is slightly under more load
I'm wondering if it may be voltage issue due to a fairly old 12v battery
Driver
Joined: Dec 2012
Posts: 129
Likes: 2
From: Co
It's probably your exhaust hitting the frame or it you have aftermarket headers, has happened to me before, there's a little brace that holds the headers and exhaust in place it could be lose or the bushings are ripped
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