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1990 Toyota 4Runner DOES NOT ALWAYS START

Tiny
HRLYRDR49
  • MEMBER
  • 1990 TOYOTA 4RUNNER
Engine Mechanical problem
1990 Toyota 4Runner 6 cyl Automatic 206000 miles

ENGINE WILL START AND RUN FINE, BUT SOMETIMES WILL CRANK OVER BUT NOT FIRE. AFTER A DAY OR SO WILL START AND RUN FINE AGAIN.
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Monday, June 8th, 2009 AT 6:27 PM

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Tiny
MHPAUTOS
  • CERTIFIED MECHANIC
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Hi there,

When it wont start you will have to check for fuel pressure, spark & injector pulse, I would be suspecting fuel pump issues as a first place to look.

Mark (mhpautos)
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Monday, June 8th, 2009 AT 6:40 PM
Tiny
HRLYRDR49
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Will fuel pressure keep truck from firing. Checked truck for fire and was'nt any.
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Monday, June 8th, 2009 AT 7:05 PM
Tiny
MHPAUTOS
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Hi there,

If you have no spark, do the scan and check for faulty cam or crank angle sensors, do this next.

Mark (mhpautos)
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Monday, June 8th, 2009 AT 7:12 PM

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