Normal to have burnt oil & coolant in lower intake?
November 12th, 2008, 3:47 PM
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Normal to have burnt oil & coolant in lower intake?
While removing the intake manifolds to change a suspected leaking (coolant) gasket, I noticed a thick coating of oil in the front half of the lower intake manifold and a thin coating of dried coolant in the rear half. Is this normal for a Tahoe w/ 70k miles on it? See pics below.
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November 12th, 2008, 4:04 PM
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RE: Normal to have burnt oil & coolant in lower intake?
That is pretty much what mine looked like when i replaced my injectors at about 110K but mine was much dryer looking...
No oil or fluids in mine, mostly just carbon. i replaced the injectors,popets and regulator.
Mine was a 1997, it sure ran smooth after replacing the fuel injection componets
something you might consider if you are that far in anyway....
[IMG]local://upfiles/17388/85B10E3F7889446D960A1211DAC9AFD2.jpg[/IMG]
No oil or fluids in mine, mostly just carbon. i replaced the injectors,popets and regulator.
Mine was a 1997, it sure ran smooth after replacing the fuel injection componets
something you might consider if you are that far in anyway....
[IMG]local://upfiles/17388/85B10E3F7889446D960A1211DAC9AFD2.jpg[/IMG]
November 12th, 2008, 4:13 PM
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RE: Normal to have burnt oil & coolant in lower intake?
OK thanks. Yeah in researching the cause of my coolant leak and how to remove the manifolds I came across a few discussions about switching out the CSFI with MPI which I guess reduces blockage from contaminants. Truck still runs very smoothly as it is now so I'll cross my fingers with the CSFI.
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