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rpm not smooth, kinda jumpy

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

rpm not smooth, kinda jumpy

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Old 02-21-2010, 05:47 PM
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nightcrawler52
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Default rpm not smooth, kinda jumpy

on my 1994 cobra the rpms arent smooth when im 100% on the throttle. It happens when i get around 4700+ RPMS. what could cause this? The distributer cap and rotor are new, the plugs only have 3,000 miles on them; along with the wires. Could this be a mass air flow sensor?
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Old 02-21-2010, 07:06 PM
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mjr46
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try cleaning the maf, and run codes/koer
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Old 02-22-2010, 10:53 AM
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nightcrawler52
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The Maf is the mass air flow sensor right?
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Old 02-22-2010, 11:48 AM
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correct
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Old 02-22-2010, 12:23 PM
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Define not smooth? Does the RPM shoot up? If it does that could be the clutch slipping when you start making a lot of power at that RPM.
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