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SadMike's avatar
SadMike
Explorer
Dec 10, 2013

454 /water in Cylinder 7 and coming out of exhaust pipe

I really need some help. I purchased a 1990 Fleetwood Bounder 34' with a GMC 454 in Oct 2013. I bought in Denver and from there I headed down to Arizona were I was for about 1 month. I drove for maybe...
mguay's avatar
mguay
Explorer
Dec 11, 2013
Could be intake gasket. I've seen that gen small block leak from coolant port into the intake at the back of the head. If all the plugs on that bank were wet it is even more plausible. I wouldn't replace the motor. Those things will run for hours without any oil in them...a little coolant is no big deal!

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