Originally Posted by Vq35deProof

Hello, need help! Own an '03 Maxima SE 3.5L auto with 120k miles, (right at the preventative maintenance schedule) and it has engine oil leaking on front/right lower control arm. Followed it to the front crank seal, oil pressure sensor and the oil filter cooler housing gasket. Anyone have ideas on what I should do? I have no trouble codes whatsoever, however, almost every part on the car is originally from the factory, except a left/driver side window regulator, resonator pipe replaced, 1 coil that went bad, new sparkies, (Ngk platinum)and lower oil pan/gasket replaced.(ALL replaced in the last year). One of the cats went bad because there's the dreaded egg smell when at half throttle or more. The car is also sucking gas like no tomorrow. Many more problems, but these are the main priorities I'd like to get fixed ASAP! I'd think the crankshaft seal would need replacing Never replaced one before. The rear main seal is fine. Anyone have knowledge of the correct seal to purchase, and a part # off the top of your head? I'm having problem's finding the right parts, (not that mechanically inclined, but have changed many parts on the last Maximas I've owned over the years). Should I replace the oil pressure sensor as well after 120k miles? Also, for the oil filter cooler housing gasket, what would anyone recommend for oem/oe replacement since gaskets are cheap? Fel-pro, MAHLE etc? Any and all help will be thoroughly appreciated! The car has problems, but isn't burning alot of oil ( for how old the car is) or blowing any blue smoke or anything like that out the exhaust, but, there is noticeable power loss. I changed from Dino oil to syn blend, and am now changing to f/syn 10W-30 Valvoline Maxlife h/m to try to slow down any leaks from valve covers etc. until funds are available. Any recommendations of reputable sites who sell oem parts? Thank you and God bless you! 🙏
P.S. I apologize for restarting such an old thread, but couldn't find the exact thread to post on. I'm at my wits end with this car, but the body is immaculate! No rad support rust, rear quarter rust,(except a few bubbles.... I am from the northeast) and has been through some rough, cold, inclement weather for the 4 years I've had her. She's been so good to me, for the last 4 years of regular maintenance and plan on keeping her for a very long time. If you need pics, just let me know.. thanks!