Low idle at red light
Thread Starter
Driver
Joined: Jun 2019
Posts: 111
Likes: 6
From: Jersey
Low idle at red light
I have a new to me lexus is250c. When I test drove the car, I noticed that the car had a somewhat rough idle once I stepped on the brake and came to a complete stop at a red light. The car was sitting for 3-4 months so I figured the car had some bad gas?
I now have the car two months and still notice this from time to time. Today I'm driving fine and the cars completely warmed up. I come to a complete stop at a red light and notice the rpm drops low then jumps right back up.
What could this be?
I now have the car two months and still notice this from time to time. Today I'm driving fine and the cars completely warmed up. I come to a complete stop at a red light and notice the rpm drops low then jumps right back up.
What could this be?
Rookie
Joined: Jan 2018
Posts: 49
Likes: 19
From: Cork, Ireland.
I would suggest cleaning the throttle body but this must be done very carefully with a cleaning fluid specifically for this purpose.
I have used a Wynns spray product which you spray into the throttle body with the engine speed held at roughly 2000rpm and this proved quite effective.
Hope this helps.
Dec.
I have used a Wynns spray product which you spray into the throttle body with the engine speed held at roughly 2000rpm and this proved quite effective.
Hope this helps.
Dec.
Thread Starter
Driver
Joined: Jun 2019
Posts: 111
Likes: 6
From: Jersey
Originally Posted by Kinger
Yup, had the same issue and cleaning throttle body helped. It was the second throttle body clean on my IS300!
Thanks!
Thread
Thread Starter
Forum
Replies
Last Post
OMAHA
LS - 1st and 2nd Gen (1990-2000)
18
Oct 30, 2017 05:02 PM
Iron Sheik
ES - 1st to 6th Gen (1990-2018)
18
Jul 29, 2005 08:53 PM
