Lexus_DK

Lexus had a service bulletin to fix this brake squeal. You aren’t the only person dealing with this issue. Lexus revised and updated the brake pads with a different material to reduce the squeal. Not only that, but they need to properly hand torque the lug nuts to also aid in preventing the brake squeal. The dealership you went to should’ve checked the TSBs and replaced the brakes pads before releasing the vehicle back to you.

Sounds like your AC compressor is possibly locking up and causing a restriction on the drive belt (rubber smell?). Try disengaging the AC clutch. And have someone check your alternator charging output. Do you remember if your battery light indicator came on while your were driving?

Start by Cleaning your maf sensor with maf cleaner. Clean your throttle body.

On 7/25/2017 at 10:35 AM, billydpowell said:

check your drive shaft cushions, differential mounts and ALL your rear suspension (and I dont mean to just LOOK at them)  prize around on them like they are going 75mph. 

You might look on club lexus for 98 LS400 severe rear vibration  

https://www.clublexus.com/forums/ls-1st-and-2nd-gen-1990-2000/484366-98-ls400-severe-rear-vibration.html

I'd check the differential mount rubber bushings. Possibly worn and cracked. If anything try rotating the wheels to see if it changes the vibration.

Seems like you have a Short from power to ground. I'd start by getting a wiring diagram. Figure out what those relays are for which circuit. Then grab a volt meter and see where your short is coming from, it's possible that it's in the junction block or after the junction block. Are there any after market electronics wired into the car? Or has the car been take apart before?

Possibly the receiver is damaged internally. Is there any drink spillage?

It's not an easy job. Not only that, but make sure the starter mounts flush and bolted correctly.

You need two people to remove the intake manifold.

If your a student, you shouldn't be buying a Lexus. The maintenance is going to be expensive. Why not buy a more practical vehicle that doesn't cost much to maintain.

and if a vehicle is leaking and making unusual noises,  please don't buy it

Warranty should cover it. Most likely the tires are uneven, they need either balancing or replacement

If I were you, I'd try getting quotes from a few other different shops before you jump on that one. $2600 does seem a little outrageous, especially 16 hrs of labor just for lower control arms

They are technically right. It even says it in the repair manual from Lexus. A portion of the lower control arm is bolted under the side engine mounts. However, there are others ways around in replacing the lower control arms without removing the engine.

If only you had a scanner to view the engine data list, to see the oil temperature readings.

Could it be you have a faulty oil temp sensor?

Next thing you can do is to test the sensor.

Check to see for any signs of coolant leaks. Make sure the engine isn't overheating. Have engine running with ac on and inspect the coolant temp gauge. Also, Make sure the cooling fans are kicking on.

If your stumped at this point, I'd have a good shop check out the ac system, make sure it wasn't overcharged with refrigerant. Maybe the ac compressor is failing or locking up.

Which part of Georgia are you located

Brake rotors will usually have a light coat of oxidation, but those definitely have more rust than usual. It's obvious he used some cheaper aftermarket ones from probably advanced auto or Autozone. Those cheap rotors are sometimes made from china. I mean, It will still perform fine.

Your OEM lexus rotors would've been fine. I don't understand why didn't he just use and resurface/machine your original rotors.

Change them every 120,000 miles. Your car is past due

With engine running, make sure the parking brake is on, to lock up the rear wheels. With your left foot constantly on the brake pedal, shift the gear selector in drive. With your left foot still on the brake pedal, quickly rev the engine by stepping on the gas pedal with your right foot. You don't want to hold the gas pedal down, just give a quick rev up to no more than 3K-4K rpm.

Then you can also do it in reverse. Just make sure your left foot is never off the brake pedal.

 

When was the last time to change engine mounts?

Brake torque the engine. If you feel or if you're able to see the engine hop up while doing so, I say start by replacing the engine and trans mounts.

Resealing a coolant valley plate on an '06 RX330. It's a tedious fun job, and a very common issue with these engines...

Huh?

Bring it back and have them look it over. I know sometimes when we get new cars delivered, the truck drivers who drops them off to our lots can damage the suspension from unloading. Ask if you can have the shop foreman get involved.

here are some possibilities that can. E related to the shimmy:

I believe there is a belt tensioner that needs to be positioned a certain way, to allow the new belt to seat on. Might need to use  a long ratchet with a 14mm to move the tensioner...

Here's what the o-ring should look like. I just recently replace a master cylinder on a 2008 es300.

There is a service bulletin from Lexus on how to care for your hybrid vehicle battery to prevent it from discharging. If I find it, I will post it on here.