Last post on Oct 30, 2006 at 9:56 AM
You are in the Lexus LS 400/LS 430
What is this discussion about?
Lexus LS 400, Lexus LS 430, Sedan
#156 of 2081 Need Advice - Sell or Trade
Apr 04, 2001 (8:43 pm)
Hi. Looking for some advice. I have a 1991 Lexus LS 400 with 108,000. It is clean and running good. Unfortunately, my A/C compressor froze and the estimated cost is about $1,500 to repair.
Do you recommend I get the work done at the Lexus Dealership or would an A/C specialty shop be better. Please tell me "why" you made that recommendation.
Is this a car a keeper or should I consider trading or selling it?
Lexus Owners - PLEASE respond QUICKLY as it is getting hot!!
Apr 05, 2001 (7:57 am)
You do have a challenge there. The 91-93 LS400s have R-12 refrigerent in them. That is a refrigerent that is very expense now due to low supply. Since R-12 is a natural resource that is almost complete depleted, many manufacturers switched their refrigerent from R-12 to R-134 around 94-95 (including Lexus). When you consider this repair, ask about whether they are retrofitting your a/c system to R-134 or leaving it R-12. Otherwise, if you have any other problems, you may 'have' to retrofit it later.
We are actually looking at this situation for our customers right now. I'm researching what Lexus recommends for retrofit. As soon as I have info from Lexus, I will be sure to post it.
As for whether to sell or fix your 91 LS400. I have several customers with this year/model, and I know how great these cars are (even though it was one of the first). They will last and last. You may have repairs, but even newer Lexus' have repairs, and you know the history on this one. That is a major plus for peace of mind.
#158 of 2081 R-12 a natural resource?????
Apr 05, 2001 (9:17 am)
You must be operating from a different chemistry book than I am. R-12 refrigerant is a man-made chemical compound of chlorofluorocarbons (CFC's) which has been proven to cause depletion of the Earth's ozone layer. It is absolutely not a natural resource. The Montreal Protocol, an international agreement originally signed in 1987, originally called for a CFC production phaseout by Jan 1, 1996 and total phaseout by 2020. Existing supplies will be available until then. The Kyoto Protocol of December 1997 further reduces allowable CFC'c.
R-134A is a hydroflourocarbon which has no ODP (oxone depletion potential).
Apr 05, 2001 (12:25 pm)
I noticed that message #126 was never answered, regarding the speedometer needle light going out. Does anyone know anything about how to go about replacing this? Do I need just a bulb for the needle or does the whole panel LED display need to be replaced (this is what the dealer says needs to be done... can't just replace the single bulb!). I have a '93 LS400. Thanks to anyone who can provide some insight!
#160 of 2081 After five visits to Lexus, problem still not fixed
Apr 05, 2001 (1:18 pm)
The car is back for the fifth visit to the Lexus dealer. The last time, they replaced the TPS sensor for a second time, saying that the first replacement was defective. Now they have a mechanic driving it to work to try to get it to fail.
Why? I guess they don't believe me.
The VSC Off indicator no longer lights when the transmission stops working. But it still has the same problem - while driving (this time about 40 miles per hour,) the car suddenly loses power to the wheels, even though the engine is still running fine.
It happens without warning, this time it was fine for three days before it messed up.
Stop the car, turn off the ignition, turn it back on, and it runs fine for hours or days.
The dealer doesn't want to change the computer, obviously,
The car is under warranty, so it isn't costing me anything - but who cares? It's lucky that no one has been hurt.
Apr 05, 2001 (6:07 pm)
R-12 is also a hydroflourocarbon and does have ODP.
It's production begins with methane and subjects to series of chemical reaction with halogens to produces R-12. The raw materials are abundant and cheap. R-12 is costly because of government regulations as well as heavy taxes.
Apr 05, 2001 (6:40 pm)
If you are confortable with going to the dealer for services and willing to cough out big $, then dealership is not a bad choice; otherwise, take your car to an automotive shop specializing in AC which can perform exceptional work for substantially less than a dealer.
If possible, you should replace the AC pump that is compatible with R-134 and retrofit your AC system to R-134 - it will cost less in the long run if you decided to keep your car. You should also look into replacing the high&low pressure AC hoses which will eventually leak after 10 years of service. Don't let anyone sell you new set of hoses, but rather, have an AC shop rebuilt the hoses at a fraction of the cost of a new set. While you're at it, change the o-ring at the hose connectors to R-134 compatible o-rings.
Sound like alot? Well, these services are not that atypical for a 10 years old AC system.
It is important to run the AC system at least once a month for at least 5 minutes to keep the system lubricated and prevent the seals from drying out. Good luck!
#163 of 2081 Powered windows
Apr 05, 2001 (6:59 pm)
Dirty and worn switches could also cause power windows failure. It requires more current to bring the window up than down, and as a result, the up switch will definitely go before the down switch which is probably why you could bring the window down but not up. As for the intermittent window problem, this may be due to dirty/worn switch contacts and not a dead motor. A dead motor will most likely remains that way and not come back to life intermittenly except for worn brushes.
Don't let them sell you new motor until you're convinced that the motor is dead. Just runs 12v through the motor to see if it turns - this is how diagnose motor problem.
As for LCD problems, read previous posts on this thread and you may find your answers.
#164 of 2081 Transmission Fluid
Apr 05, 2001 (7:08 pm)
How did they change the transmission fluid to factory fluid? Did they drain the fluid via the drain screw? How much fluid(quarts) did they use to refill?
Apr 05, 2001 (8:25 pm)
Purchased my "92" Ls400 pearl white, in May "99" with 91,000 miles. Since October of "2000" till present 108,000, have dished out $4,000+. Rebuilding power steering pump, master cylinder replaced and all around brake repair, front-end work, struts, bushings, upper control arms, brand new!
Just had timing belt and water pump replaced with 15,000 mile service. Replaced LCD for temp control and clock from Mikado, thanks for the tip! saved $200 easily. Still looking at AC work! Don't know how much yet, but with my luck lately. Still, after all is said and done, I'll be driving a new car, and what a great car it is!!!!!