Studdering

Tiny
JWACGB
  • MEMBER
  • 1997 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 179,750 MILES
97 dodge ram 1500 with 5.9l. Just did a tune up. Replaced the plugs, plug wires, distributor cap, and rotor button. Runs fine until I hit between 65 - 70. Then I get a sudden studder for a split second. Keeps studdering off and on as long as I am just pushing the gas hard enough to keep the truck at speed. If I press the gas down further it stops studdering and runs perfect. Was not doing this before I did tune up. I also am not getting any warning lights when this happens. Thanks for any help you can provide.
Wednesday, February 9th, 2011 AT 7:18 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
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 it and keep testing.
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Wednesday, February 9th, 2011 AT 7:24 AM
Tiny
JWACGB
  • MEMBER
  • 2 POSTS
Thank you for replying. When I replaced the distributor cap I had to use two different bolts. I was wondering exactly how tight it should be? It feels pretty tight to me. But im thinking about buying another cap with the right bolts this time just to see if that is the problem.
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Wednesday, February 9th, 2011 AT 7:30 AM

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