The 3.1 liter V-6 engines in several GM models had problems with the intake manifold gaskets leaking coolant, between the intake manifold and the top of the engine block, due to faulty gaskets. There was a class action suit on this problem, but I don't remember the time parameters. I know it's about 6 or 7 hundred bucks to have it repaired at a GM dealership. Good luck.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
TRANSMISSION FLUID LEAKS,CAN BE FOUND AROUND PAN GASKET.CHECK PAN GASKET,IF IT LOOKS WET AND YOU SEE FLUID DRIPPING AROUND THE EDGE OF OIL PAN, REPLACE PAN GASKET, WHILE YOU REPLACING PAN GASKET REPLACE TRANSMISSION FILTER WHILE OIL PAN OFF.IF TRANSMISSION OIL PAN NOT LEAKING, CHECK TRANSMISSION OIL COOLER LINES GOING INTO RADIATOR YOU WILL LOOSE A LOT OF FLUID THERE ALSO TORQUE SHAFT SEAL WILL CAUSE HEAVY FLUID LEAK WHILE ENGINE RUNNING CHECK OIL COOLER LINES AND LOOK AT THE TORQUE AREA WHILE ENGINE RUNNING YOU WILL SEE FLUID POURING WHILE ENGINE RUNNING THE OIL PUMP PRESSURE WILL PUSH FLUID OUT AT THE LEAKING AREAS.
oil leaking anywhere on the engine runs down and gets caught on the oil pan lip, builds up runs over and then looks to be an oil pan leak. so what you do is take the thing to a shop with a lift, like an oil change or muffler shop, and ask them to put it up on the lift so the rest of the engine can be easily examined for leaks. if there is no other place above the oil pan with a thin layer of oil on it, then most likely the pan gasket is leaking. before you buy the gasket take a good look at any suspension hardware which could obstruct easy removal of the oil pan. it may require lifting the engine up out of its mounts to get the gasket replaced, so simply snugging up the bolts holding the pan on and living with a small leak may be the way to go.
There are three places above that pan that the leaks could be coming from. 1- Tail shaft of the transmission.Would be a red color. 2-3- Input and Output shafts on the transfer case. More the color of motor oil. There may be more oil in that skid pan just not at the correct angel to let it run off.
There are three other area's that can leak, here they are in order of how often they occur
1.Engine Valve cover gasket(s) (2 if V6 engine), oil runs down the engine and drips off the pan.
2.Rear crankshaft seal leaking
3.Front crankshaft seal leaking. Oil is blown back by air pressure while driving and rips off of pan.
You cannot repair the leak until you determine where it is leaking. More than likely it is leaking from the oil filter, oil pressure sending unit, or valve cover gasket. Check around the oil filter for a leaks and if you see oil on the filter then replace it. Check the oil pressure sending unit and if it is leaking replace it. Wipe all the oil off the bottom of the engine and any other place you see oil. Now place newspapers on the floor under the car and then start the engine and let it run for about 10 minutes and then shut down. Wait overnight and you can see where the leak is coming from.
Clean the filter and pan with a spray cleaner, run engine for a few miutes.
recheck oil leak.
Probably is rear main seal leaking, very common trouble.
If not leaking much, keep drip pan under car to keep floor clean and drive on.
Most cars do leak after they age a little. The black line in the middle of the road is oil leaking from cars. Very common.
clean the srea and watch, tracing back to the source. The oil can leak from the front seal, rear main seal,Pan gaske, or come from the top of engine. Chances are greater it's coming from the front because of fan draft. good luck