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  #1  
Old 06-26-2013, 10:44 AM
tmansmith tmansmith is offline
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Default Oil pressure

My 2003 Ranger V 6. Oil pressure gauge goes crazy when at idle r stopped I need help. Got plenty of oil judged changed to synthetic Royal Purple. Thxs for any help
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  #2  
Old 06-26-2013, 11:27 AM
96_4x4_XLT 96_4x4_XLT is offline
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Quote:
Originally Posted by tmansmith View Post
My 2003 Ranger V 6. Oil pressure gauge goes crazy when at idle r stopped I need help. Got plenty of oil judged changed to synthetic Royal Purple. Thxs for any help
how much did you put int and what engine is I the truck

sent from my iPhone 5....PSH!!! I don't have money for a iPhone 5
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96 Ranger XLT 4x4 4.0 V6 5 speed 173,000 *alive*
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  #3  
Old 06-26-2013, 11:45 AM
tmansmith tmansmith is offline
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Default Re: Oil pressure

v6 vulcan engine
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  #4  
Old 06-26-2013, 11:46 AM
96_4x4_XLT 96_4x4_XLT is offline
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Quote:
Originally Posted by tmansmith View Post
v6 vulcan engine
so the 3.0
how much oil did you put in

sent from my iPhone 5....PSH!!! I don't have money for a iPhone 5
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95 Ranger XLT 4x2 2.3 I4 5 speed 206,000 *dead*
96 Ranger XLT 4x4 4.0 V6 5 speed 173,000 *alive*
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  #5  
Old 06-26-2013, 11:59 AM
tmansmith tmansmith is offline
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Default Re: Oil pressure

almost 5 quarts
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  #6  
Old 06-26-2013, 02:14 PM
rangerlocal rangerlocal is offline
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Default Re: Oil pressure

Make sure the level is reading within the hatch marks on the dipstick. That's more important than quantity.

Then again, I'm not sure that at idle if it's going crazy the problem is the quantity of oil. It may be the sending unit acting up; usually gauge problems are attributed to that thing. The gauge is just a dummy gauge anyway, and is not uncommon to fluctuate wildly in both directions. If you're concerned, use a manual gauge at idle in place of the sending unit to make sure. High pressure at idle is nothing to be concerned about though, as long as it's not extremely excessive.

But, the only reason pressure would increase at idle (which is a slower moving oil pump!) would be if there was a clog somewhere. I think the sending unit is on its way out, because when the ground connection goes it gets full voltage, pegging the gauge. Which sounds like what you're getting.

Oh yea, and just for precautionary measures, I'd change the oil filter. Maybe the filter is clogged somehow and reads high pressure until the bypass opens up. But if that was the case I'd suspect the pressure would be low until the bypass opened, but I suppose anything is possible!

Last edited by rangerlocal; 06-26-2013 at 02:20 PM.
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  #7  
Old 06-26-2013, 10:02 PM
tmansmith tmansmith is offline
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Thanks I need the help it seems like it happens on long drives not short hops
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  #8  
Old 06-28-2013, 11:52 PM
sacramentokid sacramentokid is offline
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My truck does similar stuff when I first got the truck the oil gauge would dance around like it was posessed or something mostly at idle changed the gauge cluster and it stopped dancing around... Now what it does is if I'm say in fifth gear and slow down to fast without pushing the clutch in right before the engine would stall out my oil gauge bottoms out and then if I catch it by throwing it in neutral or pressing the clutch In it shoots back up to regular pressure I don't know if this is normal or not because I'm basically almost stalling the engine out so I suppose there would be little to no pressure at that point

No I'm not a bad driver but I live in a city in California and people drive like nuts and pull out in front of you a lot so I'm having to stomp on the brakes in a emergency type situation at least once or twice a month lol
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  #9  
Old 06-29-2013, 03:39 AM
dfpgnm dfpgnm is offline
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Default Re: Oil pressure

Agree with the wiring suggestions.
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  #10  
Old 07-11-2013, 01:02 PM
tmansmith tmansmith is offline
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Hey I changed oil sensor problem solved THKS
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  #11  
Old 07-11-2013, 01:04 PM
sacramentokid sacramentokid is offline
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Cool man how much did that run
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  #12  
Old 07-11-2013, 01:07 PM
tmansmith tmansmith is offline
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Bout 15. for the part & 10. to change it
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  #13  
Old 07-11-2013, 01:14 PM
sacramentokid sacramentokid is offline
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Nice
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