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Old 02-03-2005, 01:02 PM   #1
vet
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Join Date: Aug 2003
Chapter/Region: MAIC
Location: MD
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05 LGT Wagon
GRP, sold 98 2.5rs Acadia

Question 98rs engine developing oil leak

I've got 75k on the car and recently I'm noticing a few drips under the car. Looks like the bottom of the engine - pan, oil filter, bottom radiator hose outlet - is wet with some oil. I think I remember hearing about seal issues with the phase I DOHC engines. Any ideas? Secondly, if it is engine seals what's involved to replace them and would it make sense to replace timing belt while I'm in there?

VET
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Old 02-03-2005, 02:52 PM   #2
outback_97
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Is it in this area?



Mine was leaking through the oil pump seals and they needed to be replaced. The oil made its way through the bottom of the timing belt cover and would blow back on the area behind it. If that's what yours is doing then yes you should probably do the timing belt since it could be weakened if oil got on it.

Steve
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Old 02-03-2005, 03:13 PM   #3
MyFirstDeuce
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Steve,

Thats exactly what is happening on my car. Oil pump seals huh? Im at 75k and had the 60k service done at 59k with timing belt replacement. Is that something they could have noticed about 15k ago?

Anyone know if this is covered under warranty?
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Old 02-03-2005, 04:42 PM   #4
outback_97
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Deuce:

If it was happening at 59K sure they should have noticed it. But it probably wasn't happening then. They'd have to be pretty shady to put everything back together if it was occuring then, knowing that the problem would continue. This is not uncommon on these years of 2.5's (per the dealership that fixed mine) but they couldn't have known that it was going to happen.

I doubt it's covered under any warranty at 75K unless you have some long term extended coverage. In my case I had a 3rd party extended service contract good to 90K which did in fact cover the oil pump seals. I ended up just getting the timing belt done because of the oil leak, based on the dealership's recommendation and the fact that they were already in there and it only cost a little more above my deductible.

Hope this helps. FWIW I never noticed any puddles from this, it would only leak when in motion, and since it was blowing back it was harder to pinpoint. I was around 1/2 quart low every oil change (3000 - 3500 mile intervals) but it took a while to figure out where it was going. Can't remember the mileage it happened on mine but 70K or so sounds about right.

Steve
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Old 02-03-2005, 06:11 PM   #5
Hawk296
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Ide recommend also replacing front crank seals and cam seals as well. you have to pull off the timing belt to get to the oil pump anyway, you might as well pop off the cam gears and replace the cam seals. The front crank seal is on the oil pump and tend to go out as well, so since it will be off get a new one. then of course the oil pump o-ring and then the rtv around the oil pump body. also check the torque on the backing plate to the oil pump, the screws are known to back out. This should prevent any oil leaks for some time to come.
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Old 02-03-2005, 07:38 PM   #6
maharashii
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I had to do crank, cam, and oil pump seals on my '98 OBS 2.2L at 75k miles. it's a common problem.
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Old 02-03-2005, 10:52 PM   #7
MyFirstDeuce
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so what does a 99 ej25 with 75k with the above symptoms sell for? I have an ej20 coming in on saturday! Anywant want a used engine with problems for cheap?
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Old 02-03-2005, 11:51 PM   #8
BAMA RS
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[quote]so what does a 99 ej25 with 75k with the above symptoms sell for? [quote]

$5 shipped to 32822?
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Old 02-04-2005, 01:23 AM   #9
motoracr22
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MyFirstDeuce-

Where are you located!? VERY INTERESTED.

Edit: N/M I see NJ now, that sucks...a lot.
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Old 02-04-2005, 09:22 AM   #10
MyFirstDeuce
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BAMA RS. . . deal, if you find me a box big enough. .. .lol

Well i'll get it checked out this weekend, hopefully its not that bad.
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