Can anyone please tell me if the smoke coming from underneath my car is due to a trans leak or oil from a motor change that leaked on to the exhaust? I posted this same question a few days ago but no one seemed to want to reply. I would think that someone out there would know. This is my first 7 and it is an auto but it only has 80k on it and is a 91 gxl in mint condition and I got it for 700 dollars because the previous owner could not figure this one out. Please help!!!!

 

HAHAHA I HAVE 1991 S5..ITs A SPECIAL HOSE THAT CONNECTS TO RADIATOR[ONE ON ENGINE BAY] AND OTHER ONE FROM UNDERNEATH..I WAS LIKE WTF IS THIS?? WHEN IT GETS OLD...IT LEAKS AND LATER IT POPS "LIKE MINE"..AND ALL THE COOLANT COMES OUT..THE HOSE IS RIGHT UNDERNEATH DRIVER SIDE AND IT CAUSES WHITE STEAM..IT COST ME $50 TO REPLACE THE HOSE...CHECK THE FAN IF ITS WORKING CORRECTLY...SQUEEZE THE HOSE ON THE ENGINE BAY FOR CRACKS..LEAKS..CHECK OUT YOUR RADIATOR OR CRACKS..HOLES??[ROCKS AND ****]..COOLANT FLUSH WOULD BE NICE..NOT TOO MUCH COOLANT..NEED ENOUGH WATER...WELL GOOD LUCK

 

You'll need to driveup on some ramps or jackup the front end and look. If you don't see oil pooling on the driveway, then it's probably leaking under load/driving only. Wipe-down the transmission & oil pans, drive a bit, and then see which pan is gunked up.

Besides the pans it could be an oil cooler line, front cover gasket leak, etc...

It's pretty easy to spot, you just have to look underneath the car.

Are you having to add oil or automatic tranmission fluid ?

 

I havent got it on the road yet because of this. but I figurd that it was a pretty good deal. I appreciate the help. I will lookat these things and let you guys know wazzup. Is there anything else that I should know about the auto trans ( reliabilty issues?) Thanks

 

dont put any extra power to the motor cuz the tranny cant handle it. my transmission is on its way out cuz i had the motor rebuilt and street ported.

 

Be glad you only have a small problem. I on the other hand, gotta buy a new torque convertor. Go me. Despite hearing people say, "sell the car," I love my car and plan on blowing money into to make it run/look right.

 

thats why im just converting mine to manual.....shouldnt cost to much.

 

what does it cost to convert to manual? Could I do it myself? Im pretty mechanical.

 

my auto tranny has lasted pretty well considering my mods.........I plan on driving it till it stops working then swapping to manual.....I figure im putting over 230 to the wheels, and ive been doing that for about 3000 miles on a car with 67k on it to start....it still shifts well, although its getting a lil sloppy shifting into second..........I need to work on my grammer skills........anyways thats my experiance with the auto tranny in a 91 fc