LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

evap... how hard to change? '90

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Old 12-21-06, 12:11 PM
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takumi117
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Default evap... how hard to change? '90

Just like the tittle says

how hard is it to change the evap on a 90 LS400

I heard you would have to take out the whole dashboard

is that true?

Let me know your experiences!

thanks in advance.
Old 12-22-06, 04:07 AM
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takumi117
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Well maybe this is a hard job thats why nobody knows huh? Nobody did this job to their LS? Took it to a shop or anything? I guess you do have to take off the whole dashboard...
Old 12-22-06, 07:30 AM
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LILEVO
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Yes, dashboard comes out. Follow the heater hoses through the firewall that go to the heater core and that's where the unit is.
Old 12-22-06, 01:44 PM
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takumi117
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Originally Posted by LILEVO
Yes, dashboard comes out. Follow the heater hoses through the firewall that go to the heater core and that's where the unit is.
Thanks for the reply ill remember that when I try to take it off

BTW - You think it's ok to get a non - OEM evap or I should get OEM

Parts for the a/c? Or it doesn't matter they both work the same?
Old 12-23-06, 06:04 AM
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What is the price difference? Might as well get OEM, you don't want the aftermarket one to fail after all that hard work.
Old 12-26-06, 04:41 AM
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takumi117
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You know a friend of mine... said that the first gen ls's don't have to takapart the dashbaord and said that i only have to take apart the glove compartment... What's the truth guys ... anyone actually done this... he couldve been drunk when he told me this but then again i was too... but whats the deal guys... take apart or not?
Old 12-26-06, 04:42 AM
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takumi117
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i forgot to mention he's a lexus tech... In hawaii... Hawaii guys please shim in... i know a few guys from here are in the LS world...
Old 12-27-06, 08:03 AM
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see if you can somehow get access to the service manual. that i'm guessing should have the process described... keep us updated and good luck !
Old 12-28-06, 03:43 AM
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once i get the parts and do the job i will tell you how hard it is and keep you peeps* posted
Old 12-29-06, 04:01 PM
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richonenz
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I did mine when I first got the car .
Allow a whole day , you go in by removing the glove box , also remove the kick panel and side trim so that you can fold the carpet out of the way , it's not rocket surgery but it it is tricky .
Be careful with the bolts and the connections on the underhood side and super careful with the little capilery tube .
It's a big piece of gear to get out so take your time , also I tended to remove a lot of the ECU's and stuff just to give me more room to move .
If I was to do it again I would think about removing the seat - depending on how hard it would be to get out ??
Good luck .
Old 12-30-06, 02:33 AM
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Originally Posted by richonenz
I did mine when I first got the car .
Allow a whole day , you go in by removing the glove box , also remove the kick panel and side trim so that you can fold the carpet out of the way , it's not rocket surgery but it it is tricky .
Be careful with the bolts and the connections on the underhood side and super careful with the little capilery tube .
It's a big piece of gear to get out so take your time , also I tended to remove a lot of the ECU's and stuff just to give me more room to move .
If I was to do it again I would think about removing the seat - depending on how hard it would be to get out ??
Good luck .
Hey thanks a lot for the insight ... i will do this in the new year!
Old 12-31-06, 01:02 AM
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One thing I forgot to mention is to make sure you have a 1/4 drive socket set with a 10 mm 6 sided socket and a long extension , invaluable to reach some of the nuts/bolts on the fire wall , you will never get in there with a ring spanner .
Will save a heap of time as well .
Old 12-31-06, 01:51 AM
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Originally Posted by richonenz
One thing I forgot to mention is to make sure you have a 1/4 drive socket set with a 10 mm 6 sided socket and a long extension , invaluable to reach some of the nuts/bolts on the fire wall , you will never get in there with a ring spanner .
Will save a heap of time as well .
Thanks bro!
Old 01-16-07, 12:46 PM
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Well guys I finally did it... It was a pain to take the glove box apart with out no manual. But me and my friend found it out. A/C works great. For any one doing this, you do not need to take apart the dash like others say. It's only the passenger bottom side and glove box. but taking out the whole evap is hard and frustrating, even so the 10mm nuts in the engine bay...

Here's a crappy picture of how it looked like with evap out...

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