christhanh

does any one know the possibility of oil leaks on a 1999 gs 300?? i think its leasking @ the rear main seal, but i have signs of oil leak around the valve cover a mechanic said.. so i let him change the valve gasket and it seems like it's leaking more now.. before the repairs, it was only a quarter size drop if i left it overnite.. can i get some advice.. thx.

christhanh

my car has 158,000 miles..

bashigs300

take picture of the oil running down the engine.

GS714

I think I have the same problem. Much smaller amount of oil thought. It just hanging around between the front of the transmission casing and the rear end of the engine block. The freaking Lexus Specialist mechanic won't tell me exactly where. He said he find out when he doing the timing belt. the total cost is somewhere above two grands. Hell. I gonna give the AT-205 a try. My GS300 only got 98K on it.. I had 8 oz. of ATP AT-205 in the engine. I will let you know if the leak is stop. My barely consume any oil thought. Read the review on amazon.com
http://www.amazon.com/ATP-AT-205-Re-.../dp/B000NVW1LM

GS4_Fiend

iTrader: (22)

Lol, i actually recommended this product to be used on worn bushings. But yes, try the stop leak. Cheap lazy fix.

bashigs300

don't use those leak stop stuff. they can cause problem somewhere else.fix the problem the right way. take it to other shops to do it.it doesn't have to be a dealer. also. it may leak from oil pan. check and see.

sam12345

iTrader: (1)

I agree the stop leak uses chemicals that soften the rubber and if the seal is not torn it will stop or slow the leak but it also weakens the seal. Not only the leaky seal but also every seal the oil with the stop leak touches. Sooner than later your leak will come back with a vengeance. (hope your not **** about your drive way been stain free)

sam12345

iTrader: (1)

For the op I suspect the guy did not change your valve cover gasket correctly. There is a small inspection cover on the transmission bell housing ( probably two bolts hold it on) if you remove the bolts and the inspection plate and put your pinky finger in there and there is oil it's probably the rear main if not get another mechanic to do the valve cover job correctly. Of course if there is oil in the bell housing you need to pull the tranny out so you mAy is well change all the tranny seals since the labor is the biggest cost and that will be leaking soon. And don't put in those cheap *** orally seals put the Toyota stuff in there

christhanh

my leak is coming from the rear of the engine, where tranny meets n oil drip is hanging on i think the bell housing.. if it's the rear main seal, how long can i drive with the leak? thx for helping again

christhanh

i think my leak is in the same area.. can u keep me updated on it too. thx

christhanh

the inspection cover is near the rear engine?? i wonder why the mechanics didn't open that to look for leaks.. thx for the help

christhanh

keep me updated please.. thx

sam12345

iTrader: (1)

Yup where the engine and tranny meet. You can run with the leak as long as you want as long as you keep an eye on the oil level and don't mind oil all over the car, the smell of oil burning on your hot exhaust oil all over your drive way and messing up everybody's drive way you park at. Just dont park near my house please

sam12345

iTrader: (1)

If your seals are leaking at the front of the engine change seals and timing belt ASAP because timing belts don't like oil and valves don't like bad timing belts (these are interference engines you know)

GS714

Ok, So here is the new(s). The teardrop is no longer there, where the tranny and the rear engine block meet. I will wash the car this weekend and will definitely confirm if it fixed the leak. BTW, I have another 8 oz. in my 98 camry for two weeks now, and it seem to reduced the amount of burning oil (blue smoke every freaking morning) LOL, so much for "Toyota Quality" @ only 125K. . It didn't stop the leak completely. Seal probably cracked before AT-205. Too early to tell, but I think the gas mileage may increased a little bit in the Camry after AT-205. No indication of check engine lights. Nothing on either car.