Mysterious Oil Leak - Mazda 6 Forums : Mazda 6 / Mazda Atenza Forum

bullion · 10-28-2009, 11:30 AM

I'm experiencing a minor oil leak/drip with my 2005 Mazda 6s (3L V6, MTX). The leak is minor enough that no oil is leaking onto the ground but it is leaking enough to have a drop occationally land on the exhaust which results in an oil burning smell. I thought the leak might have been a bad crank seal (harmonic balancer seal), but after replacing that seal I still have a leak. It almost seems like the leak is coming from somewhere above where the crank seal is located. Are there any known oil leak issues with this car so I have a starting point to start my search?

Egierda · 10-28-2009, 11:45 AM

There are three seals which have a tendency to go on our motors.

1) Rear main seal
2) Oil pan gasket
3) Front crank seal

I just had the exact same issue as you and needed to replace the oil pan gasket. My rear main seal is also letting a few drips out but it's not bad enough to warrant tearing the transmission out to replace.

Check your oil pan gasket on the passenger side for signs of leakage.

10-28-2009, 11:30 AM	#1 (permalink)
bullion Track Racer Join Date: Oct 2005 Location: Cleveland, Ohio Posts: 248 Thanks: 0 Thanked 0 Times in 0 Posts Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	I'm experiencing a minor oil leak/drip with my 2005 Mazda 6s (3L V6, MTX). The leak is minor enough that no oil is leaking onto the ground but it is leaking enough to have a drop occationally land on the exhaust which results in an oil burning smell. I thought the leak might have been a bad crank seal (harmonic balancer seal), but after replacing that seal I still have a leak. It almost seems like the leak is coming from somewhere above where the crank seal is located. Are there any known oil leak issues with this car so I have a starting point to start my search? __________________ 2005 Mazda 6s Manual Transmission Injen Cold Air Intake CP-E MAF Customizer

10-28-2009, 11:45 AM	#2 (permalink)
Egierda Rally Racer Join Date: Nov 2006 Location: Ontario Posts: 1,788 Thanks: 0 Thanked 1 Time in 1 Post Groans: 0 Groaned at 0 Times in 0 Posts iTrader: 0 reviews	There are three seals which have a tendency to go on our motors. 1) Rear main seal 2) Oil pan gasket 3) Front crank seal I just had the exact same issue as you and needed to replace the oil pan gasket. My rear main seal is also letting a few drips out but it's not bad enough to warrant tearing the transmission out to replace. Check your oil pan gasket on the passenger side for signs of leakage. __________________ *04' 6s MTX sedan* - Tein - TC Sportline - Seibon - AEM - Magnaflow - Cusco - Streetglow - Momo - iRotors - Hawk Performance - Maxcar - Ignited - Exile - American Bass - Legacy - TenzoR - Falken - Redline - TWM - Compustar - Racing Beat - AWR - Autometer - Lotek - AutoExe - Megan - Feather Carbon - Autolumination - Wedge Engineering - Scroth - Sparco - Sabelt - NRG - DG Motorsports - Carbon Creations - Cordova Motorsports - Sniper Tuning - Axxess - GT Spec - Tanabe - CP-E - Scangauge - Steeda - Hella - Aero Catch - ELF Racing - Stoptech - Car_LED - ARP - Project Kics

Remove Advertisements Sponsored Links
Mazda 6 Club Advertisement