Leaking coolant at intake gasket area but not into oil
Leaking coolant around intake gasket on each end, not into oil, need to replace gasket, price was $400.00, how hard is it to replace I have some mecanical knowledge and tools, where can I get step by step details on this job.
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wont be good ..cant be left
motor could take in more air
leak coolant ...this is bad
to test an intake gasket
use an oil can squirt small amounts of oil all around the intakes gasket area
if she smokes out the exhaust pipe its leaking
I had a 2000 malibu 3.1 and the manifold gasket was leaking. Model years affected, 97-04. Check the recovery coolant tank and if it looks like a milk shake instead of coolant, then you have a bad intake manifold gasket. I replaced mine a few years ago and all was fine. Engines affected are the 2.4-3.1-and 3.5, look very carefully around the intake manifold and you will see it if its leaking! operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks. Because oil will mix with coolant if gasket is bad. Hope this helps you out! Good-Day!
do you have a coolant leak or oil leak. ive always discarded the rubber gaskets provided in gasket kit, and instead, ran a good thick bead of silicone. The rubber gaskets, ive found, can be pushed out, either when setting intake on engine, or if the engine has a bad pcv valve, pressure within block can blow them out. make sure and check pcv valve. after the new intake gaskets are placed on the head, dab a bit more on the 4 corner nubs of the gaskets. i like to use an anearobic sealer around the coolant ports, just thin layer on both sides of gasket. hope this helps. James White, White Auto, Hopkins Mo. 17 yr ASE tech.
Check you oil for signs of coolant contamination. If coolant is present in the oil, you may have a leaking head gasket or intake manifold gasket. If there is no sign of coolant in the oil, the antifreeze could be leaking past the intake gaskets and into the combustion chamber. It could also be a leak that only shows up when the engine is running, and you are losing the coolant as you drive. This kind of leak is very difficult to locate. You will have to look for signs of antifreeze around the upper and lower intake gasket area with a strong flashlight. Also check for signs of leakage at the upper and lower radiator hose connections and the drain valve at the bottom of the radiator. If you smell antifreeze inside the car, check the carpet for dampness caused by a heater core leak. Sounds like a lot of work, but these mystery leaks as I like to call them, can take repeated inspections before you finally locate them. I hope I have been of some help. Good luck and let me know what you find.
if no puddles or no keaks you can see, then its probably your head gaskets, or the intake gaskets leaking. look all around intake to see if you see any leaks. if you do its your intake gaskets. how does the coolant look! on my car when the intake gasket was leaking, it made the coolant look milky and a chocolate type mixture. so check it out first, the intake gasket. Coolant may flow through the gasket to the inside of the engine and mix with the oil. Pull the oil dipstick out and look at it. Oil mixed with coolant will have a thick consistency. Examine the oil filter cap for any rusty-looking residue. good-luck.
Are you adding coolant? Yes ......means it's going somewhere. Fill the coolant tank to the top...right to the top....leave the cap off and run the engine. If you see bubbles you need a head gasket. The intake gasket is another source of coolant leaks and at this area the coolant can be sucked into the engine and produce a white smoke. Does the car run rough at the first start in the morning....could be antifreeze burning off in the cylinder or area that was leaking overnight meaning cyl gasket or intake gasket. Look at the rear head to block area below the exhaust manifold. Is there any trace of coolant or stains of coolant......yes means head gasket time. Pressurizing each cyl at a time with air with the valves closed in that cyl will quickly show the location of the bad head gasket with bubbles coming out of the fill tank on the bad cyl (s). Head gasket leaks don't always mean milky oil.
sounds like an intake leak or a vacuum leak , would start it and spray like carb cleaner or starting fluid on the top of the motor while it is cool not hot and see if you get a rise or fall in rpm,s if it does get a response chase down the vacuum leak, if not it is probally the intake gasket