possibly explosive problem


Asked by Oct 05, 2007 at 05:39 PM about the 1993 Lexus LS 400 RWD

Question type: Maintenance & Repair

fuel is running out exhaust pipe on drivers side when RUNNING, injectors tested by pro ok surge dampa replaced- how can fuel get in exhaust anyone with knowledge please help!

2 Answers


Obviously there is either too much fuel or a combustion problem. Your fuel pressure regulator, is it OK? What is the pressure reading of the fuel pressure with engine running? How about valves, etc? Something is allowing unburnt fuel to escape. Is the engine running OK? Possible misfiring cylinder might cause this. But it definitely sounds like it's getting TOO MUCH gas.

1 of 2 people found this helpful.

Are you sure it's fuel and not water that smells like gas? Did you collect some and light it with a match? All cars with catalytic converters normally drip some water from the exhaust when running and that water often smells like gasoline. I'm thinking that the car would burn all the fuel you feed it. If it were running "rich" it would blow black smoke, not drip fuel from the exhaust.

Your Answer

Lexus LS 400 Experts

  • #1
    Tom Demyan
  • #2
  • #3
View All

Related Models For Sale

Used Lexus GS 300
13 Great Deals out of 589 listings starting at $1,995
Used Mercedes-Benz S-Class
114 Great Deals out of 7,245 listings starting at $1,200
Used BMW 7 Series
117 Great Deals out of 5,064 listings starting at $2,699
Used Toyota Camry
890 Great Deals out of 73,115 listings starting at $1,400
Used Lexus SC 400
48 listings
Used Lexus ES 300
8 Great Deals out of 676 listings starting at $2,000
Used Mercedes-Benz E-Class
434 Great Deals out of 20,867 listings starting at $1,999

Used Cars For Sale

2000 Lexus LS 400 RWD For Sale
22 listings starting at $3,200
1998 Lexus LS 400 RWD For Sale
20 listings starting at $2,450

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.