My LS400 is not running like a V8 should. For the first few years i've had the car it ran great. I use to fool around and drive fast, and when i hit the gas it picked up speed and roared like a V8 should, now it doesn't pick up the speed nor rev up like it used to. What could be the problem? What do i need to fix?

Asked by John Jun 05, 2014 at 03:29 AM about the 1998 Lexus LS 400 RWD

Question type: Maintenance & Repair

My LS400 is not running like a V8 should. For the first few years i've had the car it ran
great. I use to fool around and drive fast, and when i hit the gas it picked up speed and
roared like a V8 should, now it doesn't pick up the speed as fast nor rev up like it used to.

John answered 9 years ago

Any lights on the dash kit up? How many miles on the car? Change any parts lately? No check engine light. 134590 miles. And a few months ago I changed out the alternator, PS pump and line because I have multiple ps leaks. A week ago I changed out the gasket valve covers. Today I changed the air filter. And about six months ago I had a tune up done. Didn't change the distributor cap or spark plug wires. I'm going to do those soon as well as a throttle body cleaning.

Mark helpful

Your Answer:

My LS400 is not running like a V8 should. For the first few years i've had the car it ran great. I use to fool around and drive fast, and when i hit the gas it picked up speed and roared like a V8 should, now it doesn't pick up the speed nor rev up like it used to. What could be the problem? What do i need to fix? 1 Answer

My LS400 is not running like a V8 should. For the first few years i've had the car it ran great. I use to fool around and drive fast, and when i hit the gas it picked up speed and roared like a V8 s...

1998 Lexus LS 400 RWD

-

Maintenance & Repair
I recently purchased a well maintained 1993 Lexus LS 400, but the battery was said to be a problem. I have only driven it a few times, but I notice when I apply the breaks the headlaps blink. Can this be a symptom of an electrical problem that would explain why the battery was always being drained for the prior owner? I am going to purchase a new high quality battery, but the prior owner told me to keep the + terminal disconnected so it would not go dead. Hmmm :( This does not sound like a practical way to address the problem. Any suggestions? Scott 2 Answers

!993 Lexus LS 400 w/ 130K miles, well maintained at local garage. I am trying to see if their is a more fundamental electrical problem that I should be aware of with this make of car. Thank you. Scott...

1993 Lexus LS 400 RWD

-

Maintenance & Repair
I have a 1998 Lexus LS400 183,000 miles on it. I have never changed the spark plugs. It still starts perfect, runs great and still get good gas milage 26-27 mpg. Should the plugs be changed? 7 Answers

All other maintenance has been done since I've had it. It seems like I should change the plugs, but the car still starts and runs as good back in 2010 when it had 80,000 miles, Gets about 26-27 mpg ...

1998 Lexus LS

-

Maintenance & Repair
I have a 94 Lexus, recently i left it on E for 5 days sitting in the sun, i went straight to the gas station when i started it and the acceleration was slow, i put gas and it was fine for a week. 10 Answers

Now after a few minutes of driving it shuts off at a stop sign or light, and won't go when i start it up again, just shuts off immediately. I had a mechanic come over and couldn't diagnose because...

1994 Lexus LS 400 RWD

-

Maintenance & Repair
temperature indicates that the engine is too hot. what are steps can I do to pin point the problem? 10 Answers

I just bought a used 98 LS400. The car has only 31K miles and a clean record. The temperature gauge needle points to about 2/5 of the whole range which I thought it is normal because it is usually ab...

1998 Lexus LS 400 RWD

-

Maintenance & Repair

Used Lexus GS

23 listings starting at $8,988

Used Lexus ES

17 Great Deals out of 217 listings starting at $5,900

Used Mercedes-Benz S-Class

21 Great Deals out of 193 listings starting at $6,500

Used Lexus LX

4 Great Deals out of 37 listings starting at $13,900

Used Lexus RX

44 Great Deals out of 1,190 listings starting at $4,995

Used Honda Accord

45 Great Deals out of 986 listings starting at $2,995

Used Toyota Avalon

34 listings starting at $6,795

Used BMW 7 Series

11 Great Deals out of 135 listings starting at $6,995

Used Toyota Camry

51 Great Deals out of 1,074 listings starting at $2,500

Used Mercedes-Benz E-Class

25 Great Deals out of 525 listings starting at $5,450

Used Chevrolet Corvette

32 Great Deals out of 795 listings starting at $15,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

1 Answer

Your Answer:

Shortcuts

Search Lexus LS Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

1 Answer

Your Answer:

Related Questions

I have a 1998 Lexus LS400 183,000 miles on it. I have never changed the spark plugs. It still starts perfect, runs great and still get good gas milage 26-27 mpg. Should the plugs be changed? 7 Answers

I have a 94 Lexus, recently i left it on E for 5 days sitting in the sun, i went straight to the gas station when i started it and the acceleration was slow, i put gas and it was fine for a week. 10 Answers

temperature indicates that the engine is too hot. what are steps can I do to pin point the problem? 10 Answers

Shortcuts

Search Lexus LS Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale