1999 Toyota Camry Need help for my Toyota Camry V6 1999

1999 TOYOTA CAMRY
157,000 MILES • 6 CYL • FWD • AUTOMATIC
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CURUNG
  • MEMBER
  • 1 POST
My car engine is shaky after I speed it up to 80 mph for about 2 to 3 minutes and slow down to 25-30 mph, but if I speed it up again it still run normally. Fisrt I replaced spark plugs, fuel filter, ignition cables, air filter, and the car run fine for a few days. Now it has the same condition again. If anyone can help me, I would appreciate for your responds
Jun 6, 2010 at 10:01 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard
Jun 7, 2010 at 3:49 AM
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