GX - 1st Gen (2003-2009) Discussion topics related to the 2003 -2009 GX470 models

Help! Undercarriage rust opinions

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Old 10-20-20, 11:05 AM
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kylek90
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Default Help! Undercarriage rust opinions

Hi all!

Just got back on this site after many years. I previously owned a 1993 SC300 and am seriously considering a 2008 GX 470 for my wife. The car has a pretty long service history, including timing belt 5k miles ago and exhaust manifold leak was just fixed. Also, no accidents. Has 160k miles and 3 owners, with the most recent owning it for 5 years, averaging 7.5k/year.

The car is in pretty great shape inside and out and I’m very particular. It drove very well and the air suspension works perfectly. I tested it.

Really my only concern is the undercarriage. I’ve attached photos. Asking price is $12,900 and is for sale on consignment at a local dealer. I plan to address the rust by at least pressure washer, degrease, krud kutter (rust remover), and fluid film (or something similar as a rust inhibitor) but will also consider professional service if it doesn’t break the bank. I’ll be able to clean the car well weekly as I have a bay at work, so I don’t anticipate the rust getting much worse, if at all.

Appreciate your opinions and any relevant experiences you can share! Thanks!




Old 10-20-20, 11:37 AM
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nycbenz
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Rust doesn’t look too bad to me, I have similar rusting from my NYC truck. I’ve asked multiple mechanics and they’ve all said it’s nothing to worry about.

Just had my Exhaust Manifolds replaced $3k+, so curious to know how the seller says they fixed the leak on this one? I took mine to numerous welders, and none of them wanted to touch the cast iron headers.

What is the exterior colors? Timing belt just being replaced is a major plus!
Old 10-20-20, 11:43 AM
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kylek90
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Thanks for the response. It’s white on dark grey. I’ll inquire further on the leak fix. Good question.
Old 10-20-20, 11:48 AM
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nycbenz
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Originally Posted by kylek90
Thanks for the response. It’s white on dark grey. I’ll inquire further on the leak fix. Good question.
No probs, def take to your trusted mechanic for a PPI. A couple hundred dollars is money well spent to find out any major issues. Plus give you a bit of negotiation leverage.

Good luck!
Old 10-20-20, 12:19 PM
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LeX2K
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Clean/degrease plus Fluid Film is a good plan ideally find a shop that is willing to spray the stuff on. Or you can do it yourself look into Fluid Film kits.
Old 10-20-20, 12:34 PM
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LeX2K
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These areas are potentially concerning, maybe fine or maybe you could poke a screwdriver through.



Old 10-20-20, 01:47 PM
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Lexus4321
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Originally Posted by Lexus2000
These areas are potentially concerning, maybe fine or maybe you could poke a screwdriver through.


What about the rust area just above the lower A-arm? That too would be of concern if the x-member is getting weak there.
Old 10-20-20, 02:03 PM
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LeX2K
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Originally Posted by Lexus4321
What about the rust area just above the lower A-arm? That too would be of concern if the x-member is getting weak there.
Same concern, needs the "poke test".
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