Puddle of oil on garage floor near the back of the engine
Is it engine oil or transmission fluid? Is it driven often or does it sit in the garage? If engine oil, then possibly the rear seal is leaking into the bellhousing as you drive and then draining on the floor after you stop. If ****** fluid, then possibly front seal on ****** is leaking. If car sits for long periods of time the input shaft seal can allow fluid to leak past the shaft. This usually will fix itself when driven. Can't promise it will fix itself permanently. Will not be an easy fix if either seal needs replacing (or cheap).
SOURCE: 1996 Impala SS car hesitates upon acceleration
if after setting for a while will it re-start if so look at fuel pressure regulator chevrolet does not recomend but these are adjustable and will fix problem find good drivability person with gm background can fix you make some calls
SOURCE: '07 Impala SS - just lost 2 quarts of oil this week!
The excepted rate for G.M.vehicles is 1 qrt.in 2 thousand miles.Also some engines require more time for oil drain back.Also make sure the correct amount of oil is being added when it is changed.When you have the oil changed make a mark on the dip stick so you know where it is or keep a mental note.Then check it after about a thousand and 2 thousand miles.Agressive driving will also use more oil.Keep and eye on it and if it still uses oil then You could have them do a cylinder leak down test.This will tell if the rings are worn.If they are monitoring the oil consumption they would have filled out a data sheet to keep track of the usage.If you have an extended warranty have them repair it before it runs out.Hope this helps.Good luck.
SOURCE: Loosing oil in 06 impala SS
First, do you see oil leaking on your driveway? Have you looked under the car and checked to see if any oil is dripping?A rear main seal will drip down the front cover plate of the transmission sometimes from the inside, appearing like a front seal leak on your transmission but the oil will not be red fluid you would expect if that were the case. I would not worry about rear main unless you see a leak there. Look your entire engine over and check for leaks everywhere. Several small leaks can add up to an overall large oil loss. Correct the larger ones first.
Generally all seals will last far longer if you change your oil frequently using a good quality lubricant. If you are loosing some oil, use one of the oils made for high mile engines. I suggest you use a mild additive like marvel oil 1pint with every oil change...it removes sludge, carbon and varnish buildup without the drawback of knocking it loose all at once, where it could plug up your oil pump screen. (it also smells good) Change oil every 3000 miles for the first three or four intervals, then consider using a good synthetic oil. Synthetics far outperform any other lubricant in every area! Avoid overheating your engine...overheating does more damage to seals than any single other item...When seals get very hot they harden up, crack and fail.
Good luck with your car!!!
SOURCE: coolant leak top rear of engine near throttle body
Most of the time when I see coolant leaking at the rear/top of the 3400 engine, beneath the throttle plate area, it's usually coming from the intake gaskets. There is a coolant cross-over passage at the rear of both heads and as time passes the gasket will sometimes split along the sides of this passage and coolant will begin to leak out. It can be tough to see clearly whats going on in this area well enough to pinpoint the exact source of the leak so it may take a bit of time to find it. Often with an intake gasket leak the coolant will puddle on top of the block then drip down the rear side of the engine and drip off of the pan or transmission bell housing. Hope this helps you find your problem!
SOURCE: 2000 Chevy Impala: burning/leaking oil,
i would check the oil pan gasket, front crank shaft seal, and valve covers. This are common leaks on most gm cars
Instructions
1. Removal
Unscrew the bolt that holds the negative connection to the Impala's
battery. Set this bolt aside for later use.
Remove the engine cover to access the intake manifold and manifold
gasket. Disconnect the throttle body inlet duct from the engine.
Twist off the radiator cap to allow draining of the coolant to flow more
smoothly. Place an empty container beneath the radiator's drain plug, and
remove this plug. Allow all of the engine coolant to drain into the empty
container. Replace the drain plug once you are finished.
Tag all of the electrical wiring and hoses before removing so that
reconnection is precise to factory settings. Remove these parts, individually,
from the intake manifold.
Loosen the bolts that hold the intake manifold to the Impala's engine
block. Lift the intake manifold from the block once all bolts have been
completely removed.
Use the flat-head screwdriver to pry the old intake manifold gasket from
the engine block. Discard this part once you have removed it.
Clean the engine block thoroughly with the engine degreaser and linen
cloth. If necessary, use a gasket scraper to remove excess buildup and grime.
2. Installation
Place the old intake manifold on top of the newly-installed manifold
gasket until it aligns with all of the holes of the cylinder flanges and
manifold gasket.
Attach all of the bolts with your hand to the manifold. Once all bolts
have been positioned, use a torque wrench and apply 15 foot-pounds of pressure
to the bolts to secure the manifold into place.
Reconnect all of the necessary hoses and electrical wiring to the
intake. Pour the engine coolant back into the radiator.
Reattach the engine cover on top of the intake manifold and engine
block. Start the Impala's engine and check for any leaks around the new intake
manifold gasket.
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