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Oil Problem in 89 Dakota 3.9L

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Old 03-03-2007, 04:56 PM
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Default Oil Problem in 89 Dakota 3.9L
Oil pump and Sending unit has been replaced, however when i drive 10 miles at a time, the pressure bottoms out like there isnt oil in there.... how can this be, clogged head or what?
 
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Old 03-03-2007, 06:19 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
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Old 03-03-2007, 06:39 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
yes, while driving around 35 its got the oil light on and its at minimal, but when i excellerate to 55 it goes back up...whats the purpose of the rings?
 
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Old 03-03-2007, 06:46 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
also, when driving more than 15-20 miles, i think the "lifters" rattle as in they arnt getting any oil. When we replaced the oil pump it made the engine sound a hella lot better afterwords.
 
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Old 03-03-2007, 07:13 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
what oil are you using? I would try to go with a ticker oil. I put 15w40 in the 88 and it gave it alot more oil pressure. but I usually just use 10w30
 
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Old 03-03-2007, 07:45 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
mobile 5000 10w-30 is what is in the truck, it had alot of sludge in the pan when the pump was replaced too. i thought about putting some of that oil thicking solution oriley sells or autozone.
 
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Old 03-03-2007, 07:51 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
in regards to the sludge found, we put risline to clean the engine out, so it helped a little.
 
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Old 03-03-2007, 10:10 PM
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Default RE: Oil Problem in 89 Dakota 3.9L
I like lucas oil products. I would stick a bottle of that stuff in it
 
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Old 03-06-2007, 05:30 AM
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Default RE: Oil Problem in 89 Dakota 3.9L
Here's a good article on oil pressure problems: http://www.aa1car.com/library/us1097.htm
Regards,
Greg
 
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  #10  
Old 03-06-2007, 11:08 AM
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Default RE: Oil Problem in 89 Dakota 3.9L
Ummmm... I run 10w30 castrol/Lucas Oil Stabilizer in my truck...it's good stuff.
 
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