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2008 Nissan Altima 2.5 Oil leak back side of motor appears to be near oil filter

Oil is leaking from backside of engine under intake manifold out of component that has two houses running to it and a sensor of some sort only leaks while engine is running 2.5 liter

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Posted on Jan 02, 2017

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SOURCE: Nissan Altima 2000 - Engine oil leaking problem.

replace the front oil seal. first i would clean the engine with purple power (degrease etc.) then look at the engine and make sure the leak is not coming from above like possibly the valve cover gasket or from the oil sending unit. try to tighten the bolts on the valve cover and even the oil pan. you never know, you may get lucky. i don't know where you are but front seals are cheap but the labor on the job is what costs you.

Posted on Jun 16, 2009

  • 43 Answers

SOURCE: Oil not circulating ? 1999 Nissan Altima DOHC,

Well, from the oil pump it goes into your oil filter so the lines going from the pump into the filter could be clogged. check that and see. Also on most imports I have found that they have to be primed after the oil pump has been replaced. Buy a oil pressure gauge and hook it up. Disconnect your fuel and spark delivery and then just crank over your motor to make sure you have good pressure. It takes up to 30 seconds to build on some cars. hope that helps.

Posted on Jul 21, 2009

  • 1779 Answers

SOURCE: I changed the oil on my 2008 nissan sentra 2.0

You should use the viscosity oil recommended in your owner's manual. Using a heavier weight oil can affect your fuel economy. If you overfilled the engine with oil, drain out a quart. Overfilling with oil will cause the oil to 'foam', and if this happens, you are not getting proper lubrication of components, which can result in damage to your engine.

Posted on Oct 16, 2009

  • 15 Answers

SOURCE: 2001 nissan altima code says cylinder 1 miss fire.

a lot of people have reported this issue with the 2001 Nissan altima. it is a design flaw and the idle rpm fluctuation is caused by a bad intake manifold gasket. the part only costs about 10 dollars but do to the 5-10 hours it takes to replace it is a very costly on the labor side

Posted on Feb 05, 2010

  • 4 Answers

SOURCE: my nissan maxima leaks oil where is it comming from?

if your car has alot,saying that im talkin 200.000 plus miles on it poss could be that sensor o ring,they very rarley fail unless lots of miles on drive train.without knowing how bad the leak is or any other pertinant info, like any recent service done? how long has it been leaking? does it only leak while running?while running under a load? or just sitting? all off the above? my guess would be valvecover gasket,front cam seal,oil fill cap, cyl head gasket? with just the info at hand to go on it could be any of these things pretty much in that order,if you can do a little more investigative work to answere some of the questions i asked you should get a verry accurate answere and poss things to address along with whatever maintenence needed to remedy the leak .

Posted on Jul 05, 2012

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Where is oil cooler on 2008 altima and how to relace gasket it is leaking

Look for the oil filter. The cooler is right behind it. Remove the l filter. Use a large socket to remove the center stud that the filter screws onto. Pull the cooler back far enough to remove the old gasket (you do not need to pull off the coolant hoses to do this). Clean up the area, install new gasket, install center bolt, install filter, start the engine, and check for leaks.

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How to replace oil cooler gasket and where is it on 2008 altima

Look for the old filter. The cooler is right behind it. Remove the oil filter. Remove the center bolt that the oil filter threads onto. Pull back the cooler and remove the old gasket. Clean up the area, install the new gasket, install the cooler, install the filter. Start the engine and check for leaks.

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My 2008 Chevy uplander engine light on and the code shows for cam shaft sensor and intake manifold what I do

The intake code means its leaking from the intake,bad gaskets, or a vacuum leak. check for bad gaskets on intake manifold. You can tell by putting a bit of oil around the maifold. if it is leaking the engine will flair up. To check this, External leak-- Coolant seeps through the broken intake manifold gasket to the outside of the engine. If its bad enough you will see coolant dripping from gasket. Coolant seeps through the damaged gasket to the inside of the engine, mixing with motor oil. If you suspect an internal leak, check your oil dipstick. Or if you have a substance under oil filler cap that looks like a milkshake, Oil is mixing with coolant. this means intake gaskets are bad, Now for the camshaft sensor, If you have a manifold leak. this could be giving you a false camshaft reading! Because, If sensor is bad vehicle will not start unless theres a wire problem. Symtoms of a bad sensor are--- engine sputtering, poor acceleration, stalling/inability to start. HopeI helped you out! Good-Day!

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Where is knock sensor on 1997 altima

The knock sensor is in the engine block under the intake manifold near the oil filter. The knock sensor is on the firewall side of the engine. It\'s hidden below the intake manifold and above the oil filter. 12mm box wench needed and best to remove it from the bottom (lay a piece of cardboard down and lay on your back)...taking it out from above by removing the fuel injector rail is near impossible, save yourself the time and frustration...are you getting a trouble code that says this is the problem? If you are having issues with it stalling and not firing up and it gives you the knock sensor code, you may want to check to see if the EGR is stuck. It\'s on top of the engine on the firewall side...much easier and WAY less time than the sensor!

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94 altima crankshaft sensor position and knock sensor location

crank sensor located in trans bell housing.....near where lower radiator hose connects to engine.knock sensor located on back side of engine block below intake manifold and above oil filter.hope this helped.

Feb 13, 2011 | 1994 Nissan Altima

1 Answer

Oil leaking from under the front of the motor. Have had both manifold gaskets changed, yet still have a leak. Now the starter is full of oil and I have to replace it

the manifold gaskets role in an oil leak? oil under the car i would be thinking about a front or rear crankshaft seal or the oil pan, or the oil pressure sender unit. if there is oil on the sides of the engine i would look to the valve cover gaskets.

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2003 taurus with 3.oL duratec engine. Something

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I have a Nissan Altima 99 than spend a lot of gas wath I can do ?

Dirty air filter

Dirty injectors + o-rings

Vacuum leak at intake manifold and vacuum hose.

Bad Idle Air Control Motor (IAC)

Low compression (170 psi + is OK)

Start cleaning and repair these trouble spots and see is there any improvement.


For more advance DIY'er then you may try this.

Use a can of Berryman carburetor clean to locate the vacuum leak.


This is a 20-30 minutes job.

Vacuum leaks can occur in following locations.

Intake manifold AND/OR vacuum lines.

Intake manifold is not accessible unless the engine head if off.

You can still check the potential leak by spraying some Berryman near the intake manifold.

Listen for rpm increase after you introduce the Berryman (FUEL) at idle.

Do the same starting from the brake booster unit (the round unit) on the drive side fire all.

Carefully listen for increase of RPM right after to spray the Berryman to the potential vacuum spot.

Get a friend to HEAR the RPM increase or monitor for RPM on the tech.

DO NOT AIM the Berryman into any heat source.

PLEASE RATE my answer if it is useful to you.

Dec 14, 2009 | 1999 Nissan Altima

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