Cwiok71 Posted May 1, 2007 Share Posted May 1, 2007 Hey everyone out there I have some questions for everyone, tell me what you think- I own a 1999 ES300 with a hard to believe 197k on the ODO I have had the car almost a year I bought it at 183K. I was hesitant to purchase a vehicle with this many miles at first but this being my second Lexus and seeing that the previous owner took extreme care of the car I decided to buy it. In my year of ownership I've noticed a few things that I would like to share with everyone. When I first drive the car in the morning it seems to hold second gear for quite a long time, it will get higher then usual in the RPM range, I let off the gas then it will shift, If I don't let off it will stay in second for quite a while. Has anyone else experienced that? Its done it since I've owned it It hasn't gotten worse or anything its just a litle odd to me. Its like its trying to warm the car up faster but I don't have the heat on. Second question Does everyone run premium? When I first bought the ES I would put 87 in it but would notice knocking and pinging while driving especially with the A/C on. I did the seafoam thinking that might help things but to no avail. Out here in Northern Cali premium is $3.75 a gallon! Has anyone experienced the same thing and might have a suggestion on what to do? I would like to be able to use 87 in my car its almost 25 cents cheaper and that adds up I'm currently getting 22/28 mpg depending on how much highway. I average just over 400 miles to a tank, and that's really topping it off You think maybe intake cleaning or change timing a little? Thanks in advance Jerry Quote Link to comment Share on other sites More sharing options...
amf1932 Posted May 1, 2007 Share Posted May 1, 2007 This is NOT a problem! The transmission controller is designed to delay this shifting until the coolant reaches a predetermined temperature. The pre-ignition (knocking & pinging) is probably due to carbon buildup in the combustion chambers due to the high mileage on your car. That's why you need to use premium grade fuel. New sparkplugs, or a full engine tuneup might help this problem. Quote Link to comment Share on other sites More sharing options...
Toysrme Posted May 1, 2007 Share Posted May 1, 2007 Clean the combustion chambers & change the plugs. You should run 91 octane. (Or the lowest you can achive without knock being present.) Quote Link to comment Share on other sites More sharing options...
blk_on_blk Posted July 6, 2007 Share Posted July 6, 2007 So, what's the best way to clean the combustion chambers? Just repeated Seafoam treatments? I found this interesting read on combustion chamber cleaning... sounds like this guy used a Seafoam equivalent. http://www.outreach.psu.edu/users/res122/DSM/ Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.