GoodnClean
New member
This is a description of the 90k maintenance on a V8 Lexus. This is why I bought an ES instead of a slightly used LS:
Here's a simple MAF sensor tripping a CE-Light:
Turns out it can not be cleaned and must be replaced for $500 + labor.
Power steering problems are huge on 90s V8 Lexus cars, and they almost always foul the alternator:
Really, think about this. Lexus does not reduce the cost of their parts as vehicles age like some companies do, they price their parts and service towards people making hundreds of thousands of dollars a year that pay $60k for cars and don't care that kids like yourself buy them 7,8,9 years down the road for 10k. Parts cost the same.
Timing belt, water pump, cam seals, plugs (NGK), wires, caps, ABS system flush, Cooling system flush, throttle-body cleaning, Trans fluid/filter change (including draining of the torque converter) replacing w/ Toyota Type IV, oil change (perferably Amsoil 0w30 synthetic) / Amsoil high-capacity oil filter, two back-to-back doses of Chevron Techroline.
May not be what the book says, but this is what I'd do to start fresh. About $1,800 at a good independant shop. More than twice that at the Lexus stealership. Doing it yourself???... $600? maybe..Not sure. Cant remember what the waterpump runs now... aftermarket could run as low as $85... dealer $250.
I would also pickup a shop manual. Black market reproduction sets run about $120 on Ebay. That's what I have. Well worth it.
Here's a simple MAF sensor tripping a CE-Light:
I looked at cleaning the mass air flow sensor on my 1993 SC 300. Doesn't look like I have an accessible wire to clean. Behind the air cleaner is the square, took off the five wire harness, three screws and lifted it out. There are no wires to clean, nothing that even looks like a sensor. Replacement cost $460. Am I looking at the right place.
Turns out it can not be cleaned and must be replaced for $500 + labor.
Power steering problems are huge on 90s V8 Lexus cars, and they almost always foul the alternator:
long story short...i have ps leak since last month, figured its just holes so i replaced.. still leak... then alternator die, looked under and figured it was the pump that was leaking down into the alternator cuasing it to burn... so rebuild the alternator, and rebuilded the ps pump under all my labor for less then 100 for rebuild kits for both... Yet still leak... so checked agian, and find the power steering rack and pinion leaking too, fixed that at the shop for 600$... still leak!!!!!.. so i gave up!!!.. took it to dealer for 100$ check.. they say i have internal leak from the air control vavle... forcing the fuild inside the engine and gets burn there, therefore no external leak was found... he also said that is becuase p/s wasnt fix fast enoght cuasing the problem more serve..... he also said since the fuild is running into the engine, it damage the idle up control valve which stops rpm to act normally.. which is true.. my rpm would not go over 2000rpm under Neutral gear... they estimate 1,500 for idle up control valve and new power steering pump... i figured ..crap.. all that work for nothing?? so im not giving up.. im not gonna let dealer rob me.... so imma ask ppl dedicated to sc400 =) .. and i just wanna to let every1 with ps problem know... just fix the pump the minute it leaks before all this hassle happens...
So ... i checked online and did some research.. to this point i assume, that air control vavle is inside power steering pump.. the best thing to do is to buy a pump to insure no more work... Cus those that worked on it know.. its some curcial long time work.. isnt it??... but can some1 confirm this??? is this a bright thing to do ... other than "take it to the dealer "????.. if it is... imma just buy the pump at autozone for 198$ ..and put it in myself... other than gettin charged 400$
NExt...IDle up control valve, .. did research... find out it just needs cleaning... the the good old Dealer wants 1100$ for it??? i assume they not just gonna clean it.. they gonna replace the whole thing... thats why it cost so much... but... to experts... is it only cleaning and thats it? i dun wanna take it out do it all over agian and it still leak... im gettin pretty frustrated with my sc400 i hope after this week when my ps pump gets in, i replace it, and then clean the idle up valve ..... so is THIS a good idea other than replacing it.. and where is the idle up valve, im assuming that its under the traction control box where the intake is connected it the engine... correct?????
Really, think about this. Lexus does not reduce the cost of their parts as vehicles age like some companies do, they price their parts and service towards people making hundreds of thousands of dollars a year that pay $60k for cars and don't care that kids like yourself buy them 7,8,9 years down the road for 10k. Parts cost the same.