i,ve changed the intake manifold on my 99 grand marquis, bled the coolant sys.still high temp,help!

[gspence3]

grand marquise is running warmer than usual since i changed the intake manifold

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[college man]

was the high temp a problem before the intake change? did you change the t-stat when the work got done?
heres a video to help you. follow this procedureC8-)

http://www.youtube.com/watch?v=zUpXgAJ1 … plpp_video

[yarddog1950]

If you have the 3800 V6 in your Mercury, there’s a special procedure to follow to burp the cooling system. It’s in the owner’s manual. This engine has the thermostat housing mounted to the front of the engine block well below the water passages in the intake manifold. There’s a bleeder valve located on top of the intake manifold in plain view. This valve is is used to circulate coolant to the intake manifold when the engine is running. It’s of no use in filling the engine when the engine is not running because the system will fill to level of the thermostat housing and no further.

[yarddog1950]

In that you re-installed the intake manifold and distributor, you need to set your ignition timing correctly with a timing light. If it’s off enough, this will cause the engine temp to climb.

[EricTheCarGuy]

I would suggest the above procedure and then recheck for the overheat.

[Author]

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