Bluesoarer

I have a 92 SC400 that could not pass smog due to the check engine light was burnt out. After replacing the bulb. I am throwing a code 13 that I can not get rid of. I just replaced the spark plugs and replug some wires to sensors. Still has that idiot light. Anyone have any Ideas what it could be??

This might be a dumb question. If I change the auto to a manual transmission will it be illegal in California and not pass smog check?

Does anyone know where the relay for the memory seats r located

I have a 92 sc400 and my memory seats don't work. I don't know if the buttons are bad or if its something else. The electronic seats work fine and the buttons are plugged in behind the panel. Does anyone know if this is a common problem for sc and if it is what is the first thing I should troubleshoot? Thanks

Hey moe moe there is no fuse or switch for the hydrolic fans

You can try putting the tire iron on the lugnut and stand on it with all you weight. You may have to hop on it to give it more uph. Very IMPORTANT to loosen it the right direction or you will break the lugnuts off. "righty tighty lefty loosey".

I just bought new rims and I need tires. They are 18x8 front 18x9 rear. I have been reading in all magazines that if you have staggared rims you put 40 series in front and 35 series in the back. Now how does this work? I called a tire place for tires and they told me that I should put 265 40 in the rear and 245 40 in the front. But looking up tire track website it recommeds 145 40 front and 265 35 in rear. What is you guys input of that. I never got staggared rims before and I am confused.

Well I fixed the ignition problem it was the primary coil. Thanks again for all the advice. Now back to my first problem, the overheating. I narrowed it down to the heater control valve, because one, it is a common problem for lexus v8s, and two, someone told me that if that is clogged it wouldn't circulate, also it tells the fan ecu to spin faster. I know it is the fan, cause it DOESN'T spin faster at normal temp. And I know it can spin faster cause if I unplugged the coolant temp sensor, which is located on the radiator, it DOES spin faster. I found a engine cooling fan-hydrolic repair on this forum and it says that the fan ecu gets info from the heater control valve. I hope this is the problem, cause I am starting to run out of money. Has anyone tried cleaning or repairing the heater control valve?

Im in San Diego. It is a nice hot day, but not too hot. But this weather is nothing like the great weather in Hawaii. Wish we had the cool breeze of the Hawaiian trade winds. We got winds here, but they come from the desert and they ain't cool.

Thanks Jzz30. I ordered another coil today. I am guessing now that the reason why my car is overheating is that the heater control valve is clogged cause my heater doesn't work either. I have been looking around the msg board and it has the symtoms. I did switch vacumm hoses and I still didn't get any heat. I hoping that is the problem. I'll post the outcome when I receive my coil. By the way you from Hawaii. Howzitt!! Hows the weather. I was born there, went to Aiea High School.

Now I have worst problems. When I checked the water pump and found out it seemed to be replaced recently. I removed the thermostat to see if water was flowing right, then I started the car. It was running fine. I was adding water in the inlet hole on the thermastat housing and then all of a sudden the car dropped in idle and started to idle rough. I was a idle like the timing was off or one of the pistons was not working. Then it smelled very rich and the piping and cats under the car started to smoke. Every time I try to rev the car the needle will jump all over the place. But there was no smoke coming out of the tailpipes. I checked all the plugs and they all looked fine. No oil or coolant. Then I checked the timing marks and they were aligned in the right spots. I checked all the plugs to the sensors and they were fine and connected. Is there any sensor that went bad in my car that would make the car overheat and start to go bad and make the car run rich and rough? By removing the thermostat had to do something with it? I am more confused and fustrated than ever before. Please anybody with some advice. 92 Lexus SC400 stock

I don't think it is the waterpump. The pulley I thought was part of the water pump was the electic fan pump pulley. When I got taking most of the pieces of my car to see the water pump hidden behind the electric fan pump, the water pump looked like it was changed recently. it looks pretty clean. I bought the car in february last year. I think the system needs to be burped and still something is wrong with the electric fans from turning on on high speed. I know it is not the relay cause this car don't have electric fan relays. I hope to god it is not a bhg. I still need more suggestions. The electric fans consist of a solenoind, ac switch, coolant temp sensor and electric fan ecu. I already have bought and replace the coolant temp sensor. no luck.

I think it is the waterpump. It feels loose when I shake the pulley. There is no leaks though. Thanks for the advice. I have another question. How do you fill the radiator with antifreeze. There is no radiator cap on the radiator. just the resovior. The manual says I have to put it in the inlet hose while the car is running. Is this the top radiator hose or the small hose that connects the radiator to the resovior? Thanks again.

Can anyone else help me?

help!

When I checked it yesterday, the electric fan was spinning slowly at high temp. When I checked it today I unpluged which I think is the ac switch at the bottom of the radiator under the electric fan resovoir and the fan started spinning faster. The only problem is that it cools down, but it goes back up. I would then have to rev the car for the coolant to flow faster for the temp to go back to normal temperture. Does anybody know if the fan spins at 2 different speeds at different temps, or it gradually spins faster as the temp goes up? And if by unpluging the ac switch which makes the fan faster, is this the fastest the fan can spin? Or it is completlely something else? HELP!!!!!!!!

My 92 sc400 coolant started pouring out of my resorvar couple of months back while driving from la to san diego. After that time it did not do it again. then recently I was driving home from work and stopped at a drive thru to get some food and it started pouring out again. If I let it heat up and idle it will overheat, but if I drive it it cools down. I noticed that the electric fan seems to spin slow at high temps, but when I turn on the ac it spins fast. What could it be and suggestions PLEASE!! :cries:

I have a 92 SC400. I have a boging hesitation at 4000 rpm when I floor the pedal. I have already gave it a tune up and checked for air leaks, no dice. Could it be the fuel filter or something esle I missed? Any Suggestions?

I actually found the part number for my no.2 solenoid from the lexus dealership. They said it is the same solenoid as the no.1 solenoid. Only problem is that it is $227. Is there anyway I can find this part for alot cheaper?

sexylexy did you ever find what was wrong with your car? I still can't find the part # for my car yet.

I still can't find a part number on the web. Anyone with a lexus dealer sc400 manual can tell me the number please?

I checked all the plugs and they all seem connected. I was planning on buying a new one. Just wondering how much it cost. I called the parts department and the parts guy said that he could not find it in the computer. Do you or anyone else know the part number? Also, is the solenoid located behind the oil pan tranny? I have a really crappy cd manual I bought off of ebay and it does not show me too much detail. thanks

I have a 92 sc400 at and recently I have been having my od light blink after I drive the car for about a half an hour or more. The car also seems to shift funny from first to second. When I check for transmission codes I get a 63, which tells me it is a no. 2 solenoid. Can anyone give me help with some advice, and if anyone can tell me the part # for it as well? Thank You