G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

G35 Oil Leak Help.

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Old 05-07-2019, 11:11 AM
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G35 Oil Leak Help.

I've been dealing with an oil leak for my g for awhile however I tried to diagnose what the problems was. I went online to find out where it may be. I changed my oil filter, redid the valve gaksets, checked if there was leaks on the oil pan, checked the o-ring, and checked the hoses. If there are any where else I should check can you guys let me know.
 
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Old 05-07-2019, 11:18 AM
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Originally Posted by johnson_vq View Post
I've been dealing with an oil leak for my g for awhile however I tried to diagnose what the problems was. I went online to find out where it may be. I changed my oil filter, redid the valve gaksets, checked if there was leaks on the oil pan, checked the o-ring, and checked the hoses. If there are any where else I should check can you guys let me know.
Are you sure it is engine oil and not transmission, power steering or differential fluid?
Have you ever had the vehicle up on a lift for a thorough inspection by a professional?

Telcoman
 
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Old 05-07-2019, 12:15 PM
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Step 1: clean up the mess
Step 2: use an inspection mirrors and flight light to watch EXACTLY where it leaks from
Step 3: fix leak

Stop throwing parts at the car hoping something finally works.
 
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Old 05-07-2019, 01:57 PM
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Are you finding oil on the ground, or is your oil level dropping on the dip stick? The VQ is notorious for drinking oil. A catch can will help a little, but it's best to get used to checking your oil frequently, especially if you're asking your VQ to "sing in the upper registers" often, so to speak.
 
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Old 05-07-2019, 04:12 PM
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so u dont actually see a leak. ?
 
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Old 05-07-2019, 04:16 PM
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I do see oil. I would drive it and come back home and wake up in morning and see drips of oil on the driveway.
 
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Old 05-07-2019, 04:18 PM
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yea like telecoman said may not even be engine oil ur seeing.
 
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Old 05-07-2019, 08:13 PM
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Probably. The color is dark and yellowish. I just assumed it was oil but might be something else. And it is dripping in between the transmission and engine.
 

Last edited by johnson_vq; 05-07-2019 at 08:44 PM.
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Old 05-07-2019, 09:17 PM
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That's usually the rear main seal failing at the back end of the crankshaft, it leaks into the bellhousing and then drips out onto the ground.

You can also do a UV dye test and use a black light to find out where it's leaking from.
 
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