Suuperman Posted January 18, 2011 Posted January 18, 2011 Having a valve job done on my '88 4 bngr and while it's apart I am going to replace the water pump and all the hoses. Is it necessary to run the water/coolant through the manifold? Or can this be deleted? I know on a carb'd engine it may help in cold weather but being injected...and in Florida...? Just trying to simplify some things.
jimoshel Posted January 18, 2011 Posted January 18, 2011 The only purpose of a heated intake manifold is to prevent icing in cold and / or high humidity conditions.
Mike Stone Posted January 18, 2011 Posted January 18, 2011 If you do delete your heater hoses you must move your coolant temp sensor or it will send the wrong engine temp to your ecu and your truck will run extremely rich on fuel!! But other than that you would eliminate about four different places it could leak and thats always a good thing!
Suuperman Posted January 18, 2011 Author Posted January 18, 2011 The coolant temp sensor is in the head...and the manifold 'cooling circuit' is separate from the head. So wouldn't that mean it would still work fine?
Suuperman Posted January 18, 2011 Author Posted January 18, 2011 Can anyone clarify on whether or not moving the coolant temp sensor is needed?
jimoshel Posted January 18, 2011 Posted January 18, 2011 Leave it where it's at. It'll work just fine.
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