CarLuvrSD

I have changed the fuel pump as well as a few sensors in my 1993 Lexus LS400. The car is still sputtering...hesitating to pick up speed at the rate it should. What else could it be? Even tried some injection cleaners

I've had similar issues over the years on my 92 ES. It's always been an intake air leak or failing/craked distributor cap.

:whistles: well bout week or so have pass and the white bluish smoke seems to lighten up now after every start it still smokes but the smoke is much lighter then it was before after i added that restore after i change the oil again i will add little more plus some ring sealer and give it couple of weeks to check my oil and see is this kinda working wish me luck :whistles: as i will keep this thread inform and hope to avoid any major repairs :cries: but she still runs like a lex luther should

My 92 has done this intermittently for 10 years/100k miles. It still passes emissions, and barely burns any oil.

You might not need to do anything right away.

Update:

Just took it up to get the brake hoses replaced at a shop I've used in the past. The guy there listened and instantly said it was a bad fan motor.

I would still recommend checking your power steering fluid level.

If you're driving in warm weather with the windows open the sound of the fan is much more noticeable. I drove around Arizona for 3 years with a leaky power steering hose, so I know how loud the fan can be if the fluid gets low. It seems the fan turns too slowly at idle speed, then tries to "catch up" as soon as the engine comes off Idle. My car has over 270k miles now and still has the original fan motor. If your fan has never been run completely dry the hydraulic motor may still be serviceable. I haven't heard how loud it is, so I can only go by own experience.

Check your fluid when the car is cold, like in the morning. It can be low enough to pull in air when the fluid is cold, but look about 1/3 full when the fluid is hot.

Those power steering hoses don't last very long compared to other cars I've had. My car has 6 years on it's 3rd one and now that one is beginning to seep. The original was replaced after only 4 years and 40k miles of driving in AZ heat.

Good Luck!