Question about 1990 Toyota 4Runner

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1994 toyota 4 runner v6 3.0 hard to start but runs fine when starts and starts ok when shut off and restarted. replaced fuel filter same broblem fuel pressure regulator is making pulsating sound when engin is running where do i put pressure guage to check fuel pressure and what else could it be?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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salvidordali
  • 103 Answers

SOURCE: toyota 4 runner fuel pressure

pressuer should actually raise under throttle, but not much. maybe 5psi. 38-44psi is the correct range. if your dropping much I would replace the fuel filter. next I would check the tank for debris or water, finally i would replace the Fuel pressure regulator.

Posted on Jan 10, 2009

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  • 1861 Answers

SOURCE: Toyota V6 fuel pressure amount

The fuel pressure regulator is on the driver side fuel rail, close to the back of the engine. You need to pull the intake plenum off to access the pressure regulator.

The normal operating fuel pressure is 38 to 44 PSI

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Posted on Feb 21, 2009

landsend
  • 1066 Answers

SOURCE: how to replace fuel filter on a toyota 4-runner yr. 2000.

have you tried to access it from below?

Posted on Mar 21, 2009

  • 184 Answers

SOURCE: How to reset the ''Check Engine'' light on a 1999 Toyota 4-Runner?

http://www.obd-codes.com/faq/reset_obd_codes.php

Posted on Apr 04, 2009

  • 101 Answers

SOURCE: How to reset the ''Check Engine'' light on a 1999 Toyota 4-Runner?

You need to reset the light with a scan tool, the same one you used to read the code in the first place.

Posted on Apr 13, 2009

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pressuer should actually raise under throttle, but not much. maybe 5psi. 38-44psi is the correct range. if your dropping much I would replace the fuel filter. next I would check the tank for debris or water, finally i would replace the Fuel pressure regulator.

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