1999 Dodge Ram idles good, but no power on accelration

Tiny
GENE1988
  • MEMBER
  • 1999 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 103,000 MILES
This is the 5.9 gas, it idles fine, but when accelrates, it want take fuel, done complete tune up, the front two spark plugs on pass side, was black looking, and rest plugs was clean, checked fuel pressure 45lbs idleing, but no more pressure when accelrate, all wires plugs new, dist cap, rotor button, run about 40 mph down road thanks.
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Tuesday, March 18th, 2008 AT 6:35 PM

2 Replies

Tiny
MERLIN2021
  • EXPERT
1 and 2 plugs are runnig too rich. Check for codes a nd report back. Autozone does it free.
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Tuesday, March 18th, 2008 AT 6:52 PM
Tiny
JACK42
  • MEMBER
See if there is a fuel pressure regulator on the fuel rail (where injectors go) If there is, there should be a vacuum line to the intake, if there is fuel present in the vacuum line, the reg is blown and could be causing theose 2 cylinders to run rich, and the lack of fuel pressure "jump" when on the gas
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Wednesday, March 19th, 2008 AT 11:33 AM

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