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gswilder

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  • Lexus Model
    GX470

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  1. I will check the crossbar on the roof. I assume you mean on the luggage rack?
  2. Hoping some of the folks here may be able to help. I have a 2006 GX470 with KDSS and less than 6,000 miles. It has had an unidentified interior noise (UIN) since I received the vehicle new in November. It is a "hmm hmm hmm" sound. (kind of like a vibrating washing machine sound) It only happens in the 65-75MPH range. And only when giving it gas. Let off the gas, sound goes away. Give it gas, it comes back. It is pretty loud, as you can hear it over the radio. You get about 2 "hmm" beats per second. Frequency doesn't change depending on speed or RPM. Sounds like it is coming from the middle to rear of the vehicle, but not 100% sure. It is louder when it is cold outside (30 degrees). But it never goes away even when the vehicle warms up. I have driven it 200 miles at a stretch, and the sound never goes away. If I shift from D to 4, it goes away. I have taken it to the Lexus dealership twice and they can find nothing wrong with it. So I am wondering if anyone else here has a 470 with a similar issue? Any advice that I might be able to take back to my dealer would be appreciated. Thanks Greg
  3. Looks like the Curt Mfg 13445 will fit on the 06 GX470. Got back under tonight, and there are 4 holes on each side of the frame to attach the receiver hitch to. I also contacted Curt Mfg to confirm. So still needing help with the electrical. How do I connect the wiring. Most of these I have installed have some kind of converter cable that plugs into the rear light wiring harnesses. As I said earlier, there are 2 connectors by the spare tire on the GX next to where the hitch would go. It really looks like a prewired trailer wiring harness, but how to confirm. First black connector has 3 male plugs. It is about 1 inch wide and rounded. Could it be a electrical brake connector? The wiring into the plug is Blue, Black, and White/Blue. Second plug is gray and actually has 4 female connectors. They are arrange 2x2. The connector is about 1" in diameter, although not perfectly round. The wiring into this plug is : Red/Yellow, Yellow, Blue/Red, Blue. Before I mess something up or drag out the electrical voltmeter, does anyone know if the GX470 is already prewired? If these connectors are not for a trailer, what could they be for? If I cannot use this, what other options have folks used to do the wiring. Again, I just have a simple 4 pin flat plug for my trailer. (no electrical braking - just 2 lights) Thanks again
  4. I spent about 2 hours tonight crawling under my Lexus and reading through these forums regarding an aftermarket hitch install on the GX470. I have a new 2006 GX470, with KDSS, Navigation, and Mark Levinson. I am wanting to put a Class III type hitch on it. It looks like there are a couple of aftermarket hitches that may work on the 2006. Curt Mfg 13445 (I think U-Haul carries the same hitch with a different model) Draw-Tite 75155 Here is my confusion....... Under the Lexus, I can see the 3 predrilled frame bolts on each side. Two are close together and look larger like a 12mm bolt. On the driver side a tow hook is attached, which I assume I have to remove. There is a another hole on the frame on each side about a foot farther back. Looks to be smaller like an 8mm bolte. So do I just remove the tow hook, and torque down the 4 bolts that come with these 2 hitches? It looks like only 3 predrilled holes on each side. However, some of the trailer hitch install instructions show 4 holes on each side. Could there be a difference for 2006? Next issue regarding wiring. I do NOT need brake control, just lights. Most of the aftermarket sites say you have to hardwire. (some suggest a Modulite) However while under the Lexus, I found a couple of wiring connectors back around where the tow hitch would be connected. One was 3 connectors in a gray rubber sleeve. The other was a 5 or 6 connector in a round black type connector. Both were female I believe, and nothing was connected to them. I guess I can get out a voltage meter and check each connector while pressing the brake, turn signals, etc. However, does anyone know if these 2 connectors are prewired? If so, do I just need some kind of adapter? Again, I just have a simple (4 wire) trailer connector. Sorry for the long post. But after reading through everything here, there seems to be a lot of confusion on the tow hitch on the GX470. I have installed several aftermarket hitches on my other Toyota vehicles. All were pretty simple. However, I don't want to order the wrong parts. Thanks to all in advance..... Greg
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