Recent content by lemonhead401

I have a 1990 LS400 and coolant disapeers while the engine is running. The car runs great, no clunking or steam out the back, but when the car is driven coolant seems to magically disapeer. There are never any puddles on my garage floor and it doesn't run hot. Also nothing drips when I let it...

I have a 1990 LS400 and my check engine light has been on since I have owned the car. I assumed it was the O2 sensors or cat seeing as the car runs fine. The problem is I am getting around 14 mpgs, the worst I have ever gotten. Is it possible that the O2 sensors are bad and causing the car to...

I have a 1990 LS400 and I am looking to get a new exhaust system. What would guys recommend as far as pipe size, mufflers, cats and resonators in order to get a nice low rumble but still be practical. Right now I am thinking 2.5" to two flowmaster 50 series, any recommendations?

I have a 1990 and 1994 LS400 and i am just looking to get a little more power out of the engine. I thought the 1st gen LS400 had around 230 hp?

Does anyone have any recomendations on lower cost, power increasing mods?

I checked the strut bar cushions as well and they are tight.

None of the three high mileage LS400s that I own burn any oil what so ever!

I've got 415,000 on my 1990 LS400 and still is running strong. I've also had a 1992 with 360,000 and a I still have a 1994 with 240,000. This type of mileage is almost typical for these cars!!!

Well, I am not sure what is wrong with the car but going over bumps at speeds greater than 15 mph causes the steering wheel to go right to left very quickly and make a clunking noise. It is fine on smooth roads unless you are turning, then you can feel the slightest play if you rock the...

I have an 1990 LS400 with 415,000 miles on it. It has Nakamichi and air suspension (still the original). I am thinking about doing a conversion to regular suspension, anyone have any recomendations.