1999 Dodge Ram bucking

1999 DODGE RAM
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AJONES27
  • MEMBER
  • 1 POST
Shakes or Wobbles problem
1999 Dodge Ram V8 Four Wheel Drive Automatic

when i drive the truck and reach 55 mph and over if i stay on the gas it wont do it but when i let off the gas to maintain a speed the truck starts to buck. i have changed the fuel pump plugs wires cap rotor and have put a new trans can you please help me
Apr 13, 2010 at 3:15 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test all the following listed below and get back with some results

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.
Apr 13, 2010 at 7:13 PM
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