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APN

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Everything posted by APN

  1. Hi My wife has a 99 AWD RX300, we use 87 octane from the start with no problem. Last few days she told me, and I confirmed, about a rattling noise coming from th eengine when the car is revved to around 1800RPM, above and below that it has no noise. Does anyone have any advise as to where I can look for the source of this noise. The noise sound like metal tapping at fast rate. Also can the spark plugs be changed at home or one has to bring the car to the shop for special tools ? Thanks.
  2. You should clean the MAF first. it is easy and almost no cost.
  3. My local Lexus wants $1100 to replace timing belt, water pump and spark plugs. How do I know if I really need to repalce the pump ? Do you know how to repalce the plugs ? It is npot much but I jsut want to know to replace spark plugs at least. Thanks.
  4. I think cleaning the MAF is easy and quick enough, it doesn't hurt. I removed the 2 scews and took the MAF sensor off the air filter housing, used a Q tip dampened with contact cleaner to clean the visible metal contact and the tiny wire sensor located at the top of the sensor housing (looking up from the bottom of the sensor). Then I gently dried off the cleaned parts using canned compressed air. Ten minutes job. Reset the CEL and it has not returned for few days now; engine knocking is gone. I could see the black deposit removed from the sensor parts on the Q-tip. BTW, can anyone show me how to replace the spark plugs on the RX300. Thanks to everyone for your advise with my CEL issue.
  5. Thank you for your time. I will do that and report back to everyone.
  6. OLDRX300 : How did you clean the MAF, can you please share ? I replaced my A/F sensor (bank1) but still have the error (P0171 - system too lean bank 1). My next step is the cleaning the MAF. I also found and fixed the problem with clock reset when engine is started if anyone interested. Thanks APN
  7. RX in NC You are very knowledgable on this RX300 subject. I had the CEL on my wife's 99 RX300 (84k miles), Autozone read code P0171 (System too lean Bank 1), other discussion pointed me to the Air Fuel ratio sensor. I learned that bank 1 sensor is the one closer to the firewall. I could loosen the mine, fearing breakage I brought it to the local shop (Honest Engine) to have them remove it. They didn't do anyhting special other than forced it out, part of the thread came with the sensor and they made me pay for it claiming that Lexus must have crossed treaded putting it in. So I was out over $1100 for the manifold, gasket, sensor and labor. AND now I still have the same error. Unbelievable ! Can you please tell me which sensor the dealer replaced on your wife's car ? Bank 1 (near firewall) or bank 2 (near radiator). I will never to back to Honest Engine again and cannot afford to feed the dealer at this point. Did you ever clean the Mass Air Flow sensor ? How did you do that ? (I will not buy another RX either) Thanks APN
  8. Hello, On my 99 RX300 (84k miles) I had code P0171, I could loosen the sensor and the local shop replaced the bank 1 A/F sensor but the same error appear again . Can you please give more direction. Thanks APNRX300
  9. APN

    Rx300

    Hi In my 1999 RX300 I removed (effortlessly, no force) the key in the ACC position. Stuck it back in and could not turn to LOCK or START. I towed the car the dealer and they recommended to replace the lock cylinder and keys (inside parts nto whole keys) for abotu $1100. I screamed and the service guy offer to replace the lock cylinder only for about half the price, although it is not what Lexus would recommend ! He was honest by saying that he had done this "unrecommended" reapir for those who wanted to save $500 and "none came back". Can someone help me with my questions : 1. Did I damage the lock ignition ? 2. Did I make the right decision by jsut replacing the lock cylinder ? If it doesn't work, I would have to go through the whole replacing the lock cylinder and keys not just adding the keys (WHY ?) Your explanation would be really appreciated. APN :cries:
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