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Lexus RX300 Questions

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This question has recently been posted - here's more detail about the problem. Vibration feels like driveline. Comes in at 20-40 mph. fades out, comes back a little at 55 with an oscillating drone. Can feel it slightly at all other speeds. Transmission has been rebuilt (geartrain hand grenaded) by a top notch shop. Transfer case wasn't touched. Supposedly, the vehicle had no vibration before the work was done - can't be verified. Diagnosis pointed to rear driveshaft section - renewed - no change. Front driveshaft section was renewed - no change. Both front axles were renewed "just in case" - no change. Got 3 ASE Certified Master Techs brainstorming on this and we're stumped. No chance of transfer case to transmission misalignment. Wondering if problem could have been installed during rebuild procedure somehow. Have done 3 more of these units in the past 6 months - no problems. Units have correct fluids. Engine RPM is not related - it's all about road speed. Vibration goes away (almost) when the load is off (as in "float"). Vibration can be felt pretty good with a manual downshift - i.e., engine braking loads the driveline and the vibration intensifies. It's definitely not tires, brakes or engine related. Not a noise - it's an actual vibration - just like a bad u-joint. Any help would be greatly appreciated. Thanks. :o)

Air conditioner blows cold air, but heater will not blow warm air. Works sometimes. Defrost and all other airflows are very strong. Is the airflow door for heat sticking or the airflow control out?

Just had my transmission replaced. Afterward, there is a vibration sound. Put in a drive line and still a vibration. what could be the problem?

Is there a difference in reliability between a OEM and an after-market starter? Also, prices vary for starters. Is a more expensive starter better than a lower price? Could you recommend a starter.

I have no electrical power, no lights, no radio, no power to the starter, no nothing. Is there a fuse that may have blown?

I have a rattle coming from front-driver's side whenever i hit a bump or make a turn. I believe is has to do with my mounting plate to my strut assembly. Do I need to tighten any bolts to my mounting plate? If so, how do I get access to them and what size wrench will I need? If not, what is cost to replace a mounting plate?

my email is jimmypatel7140@yahoo.com

My front brakes has "pulsating" feel when I brake. One mechanic says rotor requires machining and new brake pads are required. However, when i brought car for second opinion, mechanic says rotors / brake pads are still good. However caliper is frozen and will not move. Therefore, I need need calipers. I do not want to spend more than what I need to spend. What is your opinion?

I had ALL my struts replaced about a year ago. In addition, I had a rear mounting plate (part of strut assembly) replaced due to rattle sound whenever I go over bumps. Mechanic I brought car to concluded it is my front driver's side calipers. However, the rattle occurs ONLY when I go over bumps, or ruts on road. I still believe the rattle is coming from a faulty mounting plate, or a bolt is not tighten down on my front-drive's side strut. Do you concur?

My car will not start after turning the ignition key. I hear a "clickin" sound. However, after several times turning the ignition key the car will start up. First, I suspected the battery, but my dashboard lights are on. Second, I thought it could be the Alternator, but as previously noted the dashboard lights are lit after turning the ignition key. So I concluded I have a faulty starter. With the symptons I just described do you concur, as well?

What are the critical 120,000 miles service needs for my RX and ballpark cost?

leaking oil from area of rear main bearing. Using oil.

Does not always shift into 4th gear. Most days on Freeway, 70mph @5000rpm gas mileage15mpg Noisey
When it DOES change into 4th, 70mph 2800rpm silent running, 27 mpg Fluid checked, changes about town sometimes, again very quiet, efficent NEED local TRUSTWORTY technician
Senior Citizen

power door lock on left rear side is not working, need to know how to take the door panel out

When I change the timing belt should I also change the waterpump. What would be the cost for both of them.

I tried to start my car and the engine would turn over but not start. even in off position, still made the sound of start. I pulled the key out of ignigion and after a few seconds it finally stopped. waited a few seconds, tried again, and started fine. Mechanics have no suggestions. Any idea what this is?

The engine light stays on and the code reads
po125 closed loop fuel control insuff coolant temp
p1155 manufact control fuel air metering
p1150 ?
changeg coolant sensor and air filter
reset and check engine light comes back on after 10 miles

My rx heater/defroster does not work. The ac works great and the fan blows but no heat
any ideas

i turned on the heat yesterday and i got nothing little later a blow of hot are came out and it kept going on and off on me tech told me that the blower motor is out i would like to know if this is the case before i go ahead and buy the part.i am looking to buy the used part since car is 10 years old dont feel like spending that much.please fellows help.

No reverse gear.What has to be done?Thanks...

i have done 30000mi main. and then oil/lube every5000mi. should i do 90000mi main?

does th elexus rx300 have a timming chain or belt?

CEL code po420, what needs to be fixed?

the car has 175000 miles on it...it is still a beautiful car, runs great...
except:
sometimes, it will not normal shift into the last gear...around 45-50 mph or 3000 rpm. if i screw around with it, brake fast, accelerate then bring it down again, it will then shift...sometimes if i pull off the road and restart the car it will be fine (re-setting the computer) it would correct itself.
i have had it to a transmission guy...he checked the solenoid for "sticking" and the computer did not detect this problem. i am not wanting to spend huge bucks for a transmission job if this is not a transmission problem. it tends to do this after the car is warm. not when its cold. i have regular maintenance on the car. help.

I had my timing belt replaced 3 years ago when the engine had 80,000 miles on it. Now the engine has 127K miles on it and the water pump just went out. Do I need to also replace the timing belt?

Whinning noise from timebelt cover area

light of my airbag just on all the time since yesturday, how to switch off or reset it?

I went to the mass inspection for my lexus RX 300 but it failed because of parking brake. The brakes do not work. Even after appliyiong the car moves just like w/o any brake. What could be the cause?

I have a 2003 Lexus RX300 and the air bag light came on about 2 weeks ago and won't go off. How can I turn this light on.

After sitting idle for a few hours (or even sooner then that sometimes), my 2000 Lexus RX300 puts out bluish white smoke from the exhaust. The vehicle also burns up a lot of oil as well. The amount depends on how long and hard it is driving, usually eats put a quart or two after driving 2 hrs on the highway.

Taken it to several shops and been told the engine is very sludged up. But never given an exct cause to either problem.