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Sedans Lexus ES 99 ES 300 Won't shift into OD - Ever
16 messages, Last post on Nov 21, 2009 at 2:51 PM
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*I searched and can't find the answer. Hi Everyone, I just bought a '99 ES 300 with 106k miles. The car is in great shape and I had it checked out by the family mechanic when I bought it. His only complaint was that the 100k service had not been done, so I got that taken care of. Now that I've driven it 500 miles I've noticed two things: 1 terrible gas mileage 2 It never, ever shifts into Overdrive I don't have any check engine lights showing on the dash, but the car turns about 4k rpms going 70mph down the freeway. I can turn the OD button on or off going 70 down the freeway and nothing changes, the car doesn't shift. I have also paid close attention to at what RPM the car shifts on lower gears. Oddly enough, the car shifts into second gear at 4400 RPMs. This seems really low to me. I've also counted the shifts the car does when accellerating to highway speeds and I count three shifts. So either I have a one of a kind 3spd or something is wrong here! So, how much work + money am I looking at for the repairs and can someone point me in the right direction? Thanks, Casey
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Replying to: dsmcasey (Jul 10, 2008 5:57 am) Unplug the MAF and see if that results in a CEL. New timing belt was incorrectly "timed"...?? Is the engine coming up to FULL operational temperature?? Has some past owner removed the thermostat..?? Or it could be that the engine is so "tired" it cannot produce the torque level required of OD in that low RPM range. For this latter, try a few tanks of premium after reseting the engine/transaxle ECU.
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Replying to: wwest (Jul 10, 2008 6:47 am) P0172 "Fuel System in Bank 1 too rich" P0325 "Knock Sensor 1" P0330 "Knock Sensor 2" However, I did get the injectors serviced and had a tune up performed on the car as part of the 100k maintenance. So, I think these codes may be thrown from whenever the injector testing was done. How can I reset the codes and see if they come up again? Just disconnect the battery for a few minutes? Thanks for the replies!!!!
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Replying to: dsmcasey (Jul 10, 2008 9:22 am) "I just bought a '99 ES300 with 106k miles...." There is a good chance, IMMHO a REALLY good chance that the CEL bulb was intentionally disabled by the seller.... I would check and see exactly what the CEL bulb failure "cause" was/is. Bulb simply removed would equate to intentional fraud by the seller. What I do not, cannot understand, is just exactly how someone did the 100,000 mile service, tune-up and injector cleaning all without noticing that codes were being "thrown" and the CEL bulb was not working. Sounds as if you may have been "had" by both the seller (dealer..??) and whoever did the 100,000 mile post-purchase follow on work. If the seller ready wanted to "hide" the fraud they might remove the bulb, apply ~30 volts to "blow" the filament, and then re-install the bulb. I have even heard of instances wherein traces were cut to disable the bulb's CEL functionality and then the bulb cross-wired to another function so the bulb appears to work normally in test mode before the engine is started. Looks like your seller may not have been a very "bright" bulb, PUN fully intended. If you should find the bulb missing I would immediately hire an attorney. |
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Replying to: dsmcasey (Jul 10, 2008 9:22 am) |
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Replying to: dsmcasey (Jul 10, 2008 9:22 am)
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Replying to: pgood (Oct 14, 2008 1:06 pm) You can test the above theories by filling with 92 octane, disconnecting the battery to erase the previous "learned" parameters and see if the ECU will then use, or attempt to use OD. If the clutch is failing the ECU will soon stop using OD again. If the engine is degraded the ECU may use OD again until you switch back to regular. You might also want to look into the possibility that the engine is degraded due to a clogged exhaust due to catalyst structure failure. If the 99 had an ATF thermistor to prevent use of OD until the fluid was warmed up the thermistor may have failed.
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Replying to: wwest (Oct 14, 2008 1:51 pm) Let's assume that the OD problem is resolved by replacing the thermistor. I still have the CEL and Traction Control lights to deal with. I had the ECU code read...P0330 "Knock Sensor 2". I was told by the Lexus service folks that the Traction Control is frequently "shut down" by the ECU when a CEL is activated for a prolonged period of time. Is this true? What should my next steps be? I'm hesitant to take the car to the Lexus dealer again because they were not able to resolve my problems by changing out parts (rear injector bank) which cost me $1200. It seems they read the codes, then change out parts without resolving the root cause. Thank you very much for your assistance.
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