kmpdd

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About kmpdd

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  • Lexus Model
    1990 LS 400
  1. has not set their status

  2. Hi, I have a 90 LS 400 in great shape except for a "droning" sound coming from the back (occurs between 63-66mph in od). I have had all engine, and transmission mounts changed. I've heard the problem is a harmless harmonic probem these driveshafts acquire over time. Supposedly the only fix is a new driveshaft. Any thoughts on this. thanks
  3. My sub cracked and I needed a replacement. The first shop I went to said "no problem" and that he would fit something in there for a couple hundred. He had no concerns about the box size or ohm requirements. ........ The second shop owner was honest. He said he had a lot of exprience with early model LS 400's. Unfortunately, he had no luck with his products and the resulting sound. Everything he tried just wasn't quite right and he recommended just a factory fix which I eventually opted to do. I've had no regrets and the system sounds remarkably good for a 20 year old system.
  4. Is the noise continuous or intermittant based on speed?
  5. please describe more. It may be a new thing, or could be one of the following: 1. vibration (around 65-70 at 1800-2200rpm) 2. clunk (might not be this, but it's the feeling of a "rear end hit" from the rear driveshaft at a stoplight) and many more..... but not related to this. So if it is more of a vibration around 65-70, what would you think the problem might be?
  6. 161,000 on my 90 ls 400, but i do have 330,000 on a 90 Volvo 740 wagon
  7. I have a 90 ls 400 with a "droning" noise that can be heard from 65-70 mph. The car is extremely smooth otherwise. The sound is definitely coming from the back. It sounds like differential mounts could do the trick, but what about those rings, are they something that can contribute to this sound? How many differential mount are there? thanks
  8. I have a 90 ls 400 that needed a sub replacement as well. The dealer has two options, the Nakamichi or Pioneer subs, both pretty expensive, 370 amd 260 respectively. I talked to local installers. The first said he could throw in a "Kicker" for 150 bucks, but he really had no concern about ohms or enclosure space. The second installer said I would be better off getting a factory component or he would build an enclosure for one of his own subs. He said his experience with the trunk space and the resistance requirements of the ls 400 system have never been very good. He said he would be more than happy to take my money and install something that didn't sound quite right, but he thought the best bet was still a factory component.
  9. I have 90 ls 400 and a "whining" sound similar to yours turned out to be alternator noise.
  10. I have 1990 Volvo wagon with 330,000 miles on it that I'm saving for my son to drive in a few months when he get's his permit. When I compare it with my Dad's 1990 LS 400, the volvo seems dated the day I purchased it, but after awhile the car grows on you. At about year 10, I started to appreciate the volvo's simplicity. Yeah, the brakes have always been an issue as is the old freon AC, but that volvo was built to last. I also had a 1988 honda accord that was literally trouble free. Can you imagine driving an accord 288,000 miles and never having an alignment problem. My new Acura MDX is a lemon compared to these cars. I can't argue with that list
  11. I have 1990 Volvo wagon with 330,000 miles on it that I'm saving for my son to drive in a few months when he get's his permit. When I compare it with my Dad's 1990 LS 400, the volvo seems dated the day I purchased it, but after awhile the car grows on you. At about year 10, I started to appreciate the volvo's simplicity. Yeah, the brakes have always been an issue as is the old freon AC, but that volvo was built to last. I also had a 1988 honda accord that was literally trouble free. Can you imagine driving an accord 288,000 miles and never having an alignment problem. My new Acura MDX is a lemon compared to these cars.
  12. That's interesting. What bushings would those be? thanks
  13. I have recently acquired a 90 LS 400 with 140,000 miles. Running through the gears I hear a slight "droning" noise and feel a very slight vibration periodically through the rev band. Between 60 and 70 mph the sound and vibration is worse, but it disappears beyond 70 mph. Could this be engine or transmission mounts? Also, at highway speeds I feel a little looseness when I accelerate and let up on the throtle. Could this be a ball joint problem? How long should ball joints and mounts last anyway? The miles aren't that great, but the car is 17 years old. Any help is appreciated. thanks. Just in case someone is interested. I finally had the dealer look at the car and I had the engine and transmission mounts replaced. The car is fantastically smooth again. Absolutely no vibration at all during idle. The car feels new again even though it is in fact 18 years old. My only concern now is a slight "droning" noise originating from the back, possibly from the rear differential?