Question about 2000 Ford F150 Flareside SuperCab

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Coolant in # 1 cylnder\clean intake port of intake manifold

2000 ford f150 4.6 v8 138,000 miles,has coolant in #1 cylnder,intake gaskets have been replaced,no excessive pressure in radiator,no coolant in oil,intake port tube super clean for that cylnder while the other 7 have carbon in them.confused whats wrong.possible cracked intake,anyone hear of this before?

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  • scott Apr 18, 2009

    thanks,my first time working on a triton engine,but have lots of experience of windsor 5.8.

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Check the lower intake gasket again the new gaskets that are being use made out of plastic with rubber port seals sometimes don't seal right I still used gasket sealer with the new plastic gasket even if it has rubber seals. MY 4.2 v6 had that problem but I went ahead and replaced the head gaskets also just to cover all the bases. And my F-150 has 210,000 miles on it. Make sure you tight the bolts I know it probably calls for something like 8 ft lbs which to me is not tight enough. Double it.

Posted on Apr 18, 2009

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Replacing intake manifold gasket:
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