Question about 2003 Chevrolet Malibu
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Posted on Jan 02, 2017
It sounds to me like you have a head gasket leaking. See if you can get a gauge and check each cylinder. Are you using alot of anti freeze?
Posted on May 28, 2009
SOURCE: Ticking on '05 Chevy Equinox
THE TICKING NOISE IS VALVE LIFTERS.MOST OF THE TIME WHEN ENGINE OIL GETS DIRTY NEEDS OIL CHANGE.DIRT GETS IN LIFTERS THEN CAUSES THEM TO BE NOISEY.IF LIFTERS STAY NOISEY ALL THE TIME.THEY OR WORN AND NEED REPLACING.ITS NORMAL FOR CAR TO SMOKE A LITTLE WHITE SMOKE IN MORNING ON START UP.LONG AS IT DONT KEEP SMOKING IF SO.YOU HAVE HEAD GASKET LEAKING.
Posted on Oct 23, 2009
When the car is completely cool,check the electric fan(s) for smooth rotation.
Clean/check/change the thermo sensor,contact and wire.
Excavate air pocket in coolant system / check for head gasket leak
This test will kill two birds with one stone.
MAKE SURE THE COOLANT SYSTEM and ENGINE IS COLD!
RAN THIS TEST IN A WELL VENTILATED AREA ONLY!
You will spill some coolant during this air pocket purge test.......BE KIND TO THE ENVIRONMENT and ANIMAL please clean up after the test!
Put the front end on a pair of ramp or park your car on a VERY STEEP HILL (radiator facing top of the hill) .
Top of the coolant reserve tank
Let it ran for 10-15 minutes.
Monitor for air pockets escaping from coolant reserve tank.
Small amount of bubbles is OK at 1-5 minute mark
After the thermostat open up (after 195 F warm up) at
5-12 minute mark or after high idle you should see less bubbles.
If you do not see any in rush of bubbles then your thermostat may be partially stuck or rusted badly inside the thermostat hosing.
Give the thermostat host few gentle taps.
If you see larger bubbles surfacing after 15 minutes then should do a hydrocarbon (HC) dye test to test for potential head gasket leak.
Let engine cold down and top off coolant reserve tank.
Start monitor for coolant lost
A coolant flush is require every 2 years or 24,000 miles.
I recommend the thermostat that has a relief pop-let to reduce the change of burst radiator and coolant hoses.
Make sure you get a new thermostat gasket,black RTV and fresh coolant for the job.
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Posted on Dec 05, 2009
You replaced intake manifold gasket and now have this problem. Sounds like an overheating problem. It is possible you cracked the manifold when you tightend it down and that is letting pressure back down the water system but I don't believe that is likely. The only other time I had this problem when it wasn't the Thermostat sticking was when I had a head gasket leak to the coolant side. It let pressure into the coolant system and caused this but didn't exhibit leakage into the cylinders. Remove the thermosat and see if that relieves the problem. If so replace thermostat and enjoy. Hope this helps.
Posted on Dec 12, 2009
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