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  #1  
Old 08-05-2011, 04:27 PM
MWDK MWDK is offline
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Default Rough idle on 4.0

Hi
My Ranger is acting a bit strange. When it is idling (just under 1000 rpm) it sounds kind of like it is grasping for air. I can hear the rpms change a bit in a steady pulse (ca. one "breath" pr. 1.5 seconds), but not enough to make a change on the rpm-meter. It has stalled a couple of times because of this. Both times going through busy drive through in the early morning (summer).

I tried putting one of those "remove water from fuel"-things in the fuel tank last time I filled it up, but it didn't help.

Any other suggestions? Is there something I can clean, or can I simply up the rpms a bit, maybe?

Thanks and enjoy your weekends!
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  #2  
Old 09-07-2011, 06:02 PM
Stringer Stringer is offline
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Default Re: Rough idle on 4.0

Mine is doing this as well but worse! Do you get a slight ticking noise?
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TRUE BLUE 2004 FORD F-150 XLT SUPERCAB 4X4 5.4L V8
10" SUB, PIONEER HEADUNIT, CHROME ACCENTS, 285/70/17 TOYO MT TREADS, TOOL BOX, INTERIOR LEDS BEAT TO MUSIC, EDGE EVO, 3" AUTOSPRING W/ LIFT SHACKLES...MORE TO COME

OXFORD WHITE 2002 FORD RANGER SUPERCAB 4 DOOR XLT FX4 OFF ROAD 4.0L SOHC 4.10 GEARS - SOLD
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Old 09-07-2011, 06:16 PM
SB03Ranger SB03Ranger is offline
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Default Re: Rough idle on 4.0

Mine is doing kinda the same. doing better since i replaced the IAC but not how it should be. and mine also has that slight ticking sound your talking about, i have no idea what that is? ive looked everywhere for it.
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Old 09-07-2011, 08:44 PM
Stringer Stringer is offline
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Default Re: Rough idle on 4.0

I looked through some of these other threads and they are talking about timing chain tensioners and other tensioners being the cause of this....I dont know if it is but I'm going to look into it
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TRUE BLUE 2004 FORD F-150 XLT SUPERCAB 4X4 5.4L V8
10" SUB, PIONEER HEADUNIT, CHROME ACCENTS, 285/70/17 TOYO MT TREADS, TOOL BOX, INTERIOR LEDS BEAT TO MUSIC, EDGE EVO, 3" AUTOSPRING W/ LIFT SHACKLES...MORE TO COME

OXFORD WHITE 2002 FORD RANGER SUPERCAB 4 DOOR XLT FX4 OFF ROAD 4.0L SOHC 4.10 GEARS - SOLD
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