1991 Toyota 4Runner advise.

Tiny
PAUL BILLINGTON
  • MEMBER
  • 1991 TOYOTA 4RUNNER
1991 Toyota 4Runner Four Wheel Drive Automatic

hi there.
ive recently bought a hilux surf off of my mate. We used to drive together so I know it was working fine for long.
i drove it for a few days with no problem but on my first day using it for work it drastically lost power on the way home, very jerky.
my mate took it in and replaced some filters and the jerking stopped. As the days went on it just lost power a lot, especially on the uphill and on the flats, downhill seemed ok.
i took it in for diagnostics and it came back saying check fuel pump and wiring loom.
these people say it will probably exceed £600.
loads of my friends advise me that im getting ripped off. Does this sound right or should I take it somewhere else?
please help me out here.
kind regards, paul.
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Wednesday, January 13th, 2010 AT 6:52 AM

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Tiny
2CEXPT
  • MEMBER
Check and test the following below:

Oygen Sensor
Catalytic Converter
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires
Cap and Rotor

Note:If it doesn't apply, disregard.
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Wednesday, January 13th, 2010 AT 9:11 AM

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