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Old 05-13-2013, 03:50 PM   #1
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Default 2001 Pontiac Bonniville SSEI

I just changed Water Pump out, flushed and burped my radiator, as well as changed intake manifold gasket. There is no sign of fluid leaking anywhere under the hood. But i can't stop my car from overheating. Any suggestions on what the cause of this issue.
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Old 05-13-2013, 04:10 PM   #2
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Did you bleed the air out of the system using the bleeder screw on top of the thermostat housing?
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Old 05-13-2013, 04:12 PM   #3
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thermostat, pressure cap, clean rad and condensor fins? see movement in the rad when running?
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Old 05-13-2013, 04:13 PM   #4
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Check the cooling fans to make sure they are coming on.

Pull the dipstick and see if the oil is milky.
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Old 05-13-2013, 04:31 PM   #5
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I did bleed the air from the tstat housing. and cooling fans are running. I will check my pressure cap, i did look at the seal on it and it looks pretty good.
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Old 05-13-2013, 04:34 PM   #6
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spring pressure is what you are worried about as well. having to clean rad and condensor is the most common thing. most people dont think to do it but its out in the crap worse than your hause a/c and most do that once a year
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Old 05-13-2013, 04:44 PM   #7
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Just checked oil. and no its not milky 2kg4u
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Old 05-13-2013, 05:27 PM   #8
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Ya gotta burp the engine too. It can be done in a couple different ways.

1. Slant the car to one side(most difficult)

2. Remove the thermostat housing and thermostat and rad cap and top of this way.

3. Or drill a small hole in the thermostat, to allow air to purge itself. Easiest and best way because this will keep your engine just a tad cooler here in the summer.
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