Gasoline on the air intake

Tiny
PURO ZIQUITARO MICH
  • MEMBER
  • 1998 TOYOTA TACOMA
  • 3.4L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 300,000 MILES
One of the hoses connected from the intake manifold to a compartment attached to the air intake that suppose should be vacuum has been sending gasoline to that compartment and gas starts leaking from air intake and when engine is running smells a lot to gas.
Saturday, November 30th, 2019 AT 6:44 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good morning,

there is a fuel pressure regulator on the fuel rail that has a vacuum line to it. When the regulator fails, it allows fuel into the vacuum line and directly into the motor. This is a common failure.

I would replace the regulator. You can confirm by removing the vacuum line with the key in the on position and see if it leaks fuel.

Roy
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Sunday, December 1st, 2019 AT 5:54 AM

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