96 Ranger, rough engine at odd times.
#1
96 Ranger, rough engine at odd times.
Just bought it, not familiar with twin spark 4bangers. 96 Ranger, engine has probably 90k miles on it. It seems to run rough at idle, get it up to about 3k RPM and it feels like it smoothes out. A/C running does not affect the drag on the engine. Has good pickup, I dont have it road legal yet so have driven it approx 60miles total up to 75. Feels like it run smooth at 75. Also, mechanic told me no compression in the 4th cyl... I somehow doubt that with it running smooth at higher RPM. Plus the engine does not shake at idle, just runs rough (but never stalls even at idle)
BTW: Checked firing order and it was correct, cat was removed by previous owner. Someone mentioned something about O2 sens could be causing this?
Any starters? Mechanically inclined, know more than enough to keep myself out of trouble, just not much of a gearhead.
BTW: Checked firing order and it was correct, cat was removed by previous owner. Someone mentioned something about O2 sens could be causing this?
Any starters? Mechanically inclined, know more than enough to keep myself out of trouble, just not much of a gearhead.
Last edited by AxelStone; 04-12-2005 at 06:06 PM.
#2
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#3
#4
With what Dealford brought up, I BET the last plug or two was not changed and that's how the rougness is noticeable until you get up to highway speeds.
The cat should not have an effect. An oversized exhaust pipe would slow the flow down enough to "plug" things up in a sense which would be trouble.....but that must not be the case here.
The cat should not have an effect. An oversized exhaust pipe would slow the flow down enough to "plug" things up in a sense which would be trouble.....but that must not be the case here.
#5
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mb5518
1983 - 2012 Ranger & B-Series
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09-17-2014 07:12 AM