slight vibration at idle
Thread Starter
Joined: Mar 2003
Posts: 3,467
Likes: 1
From: LONG BEACH, SOCAL!
Vibrator
Well now that i have your attention it is more of a slight vibration,
I have 99 GS4 its almost time for my 90k mile service, I have slight vibration sometimes not all when I am sitting at a red light I ve noticed that If I press on the gas lightly while still holding the break it stops I guess beacause the car start to receive more gas will this be taken care of and stop after the 90k service or do I have to do something else anyone please thanks
I have 99 GS4 its almost time for my 90k mile service, I have slight vibration sometimes not all when I am sitting at a red light I ve noticed that If I press on the gas lightly while still holding the break it stops I guess beacause the car start to receive more gas will this be taken care of and stop after the 90k service or do I have to do something else anyone please thanks
Instructor
Joined: May 2002
Posts: 1,152
Likes: 3
From: California
welcome to the club of low rough idle GS4's! it's a common problem that lexus has no fix to it. do a search on our forum and you'll see what i mean. people have tried new throttle bodies, MAF sensors, TPS, you name it, it's been done.
Lexus Test Driver
Joined: Jun 2001
Posts: 1,580
Likes: 19
From: California
Originally posted by LEXISM
thanks GSQS , I guess I dont feel that bad then since everybody has that problem i guess I'll try bananas method but thanks
thanks GSQS , I guess I dont feel that bad then since everybody has that problem i guess I'll try bananas method but thanks
Lead Lap
Joined: Aug 2003
Posts: 573
Likes: 5
From: Vaughan, Canada
rough idle
Just putting in my $.02
Was searching some of the forums and came across this.
Might not mean anything but "has anyone who is experiencing rough idle had their stock air filter replaced with a K&N filter prior to the rough idle?"
If so, I wonder if the hot wire on the MAF sensor has been coated with oil form the K&N filter and now is not communicating with the ecu properly.
If so, try removing the MAF sensor (located between filter and throttlebody and clean it out with carb cleaner)
Here is a pic of the MAF sensor location on my RX
Was searching some of the forums and came across this.
Might not mean anything but "has anyone who is experiencing rough idle had their stock air filter replaced with a K&N filter prior to the rough idle?"
If so, I wonder if the hot wire on the MAF sensor has been coated with oil form the K&N filter and now is not communicating with the ecu properly.
If so, try removing the MAF sensor (located between filter and throttlebody and clean it out with carb cleaner)
Here is a pic of the MAF sensor location on my RX
Joined: Jul 2002
Posts: 9,859
Likes: 12
From: Waipahu, Waikele, HI
Try resetting the ECU (remove negative cable from battery for min. 1 hr.). Then re-install....start engine and rev it hard for 10 seconds or so.
Also, I would check all my fluids to see if its topped off. Check engine and transmission oil too.
Good luck.
Also, I would check all my fluids to see if its topped off. Check engine and transmission oil too.
Good luck.
Lexus Test Driver
Joined: Jun 2001
Posts: 1,580
Likes: 19
From: California
Re: rough idle
Originally posted by Fern
Just putting in my $.02
Was searching some of the forums and came across this.
Might not mean anything but "has anyone who is experiencing rough idle had their stock air filter replaced with a K&N filter prior to the rough idle?"
If so, I wonder if the hot wire on the MAF sensor has been coated with oil form the K&N filter and now is not communicating with the ecu properly.
If so, try removing the MAF sensor (located between filter and throttlebody and clean it out with carb cleaner)
Here is a pic of the MAF sensor location on my RX
Just putting in my $.02
Was searching some of the forums and came across this.
Might not mean anything but "has anyone who is experiencing rough idle had their stock air filter replaced with a K&N filter prior to the rough idle?"
If so, I wonder if the hot wire on the MAF sensor has been coated with oil form the K&N filter and now is not communicating with the ecu properly.
If so, try removing the MAF sensor (located between filter and throttlebody and clean it out with carb cleaner)
Here is a pic of the MAF sensor location on my RX
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