Oil light stays on till car is warm if temp has dropped to freezing. Once heat light is ok can still hear tappets until engine heats more. Would an additive work? Engine block heater?

Big A's Auto Repair

• 755 Answers
• Posted on Dec 27, 2008

SOURCE: not much heat from the heater

Hi my name is Allen!

The first thing to check is the coolant level, if the coolant is full and the heater core hose is extremely hot to touch, then you may have a door problem. If you like we can work together on this problem. First check the coolant level. Then run the engine until operating temperature, grab each of the heater core hoses and let me know what you find.

For further asistance you may reach me at FixYa!

SOURCE: 2000 F250 super duty v10

check the vaccum hoses on the passenger side under hood. I think that there are two hoses but it might be three. they get brittle and leak. but they move a little valve that you can move yourself just to see if heat works then. it is inline with the heater hoses I think. Bear with me though because it has been about 3-4 years ago when I figured this one out. it is definately a vaccum problem. there is also a set of vaccum hoses under passenger side of dash, several colors in it. might want to look there because sometimes kicked by peoples feet but money is on the ones inline with heater core. just move linkage and see if it gets hot air. Hope I helped and didnt confuse.

SOURCE: low heat from heater

Had same problem. Take off both hoses to the heater core at the fire wall. Using a garden hose with nozel flush with water on the "inlet hose" first(the one hot to touch) then flush the other side. A nasty blackish slim will come out. Oh, cover your distributor with a plastic bag first so it won't get wet. Put the hoses back on, set heat for full high and enjoy your nice warm bravada again!

SOURCE: engine overheating audi 4.2 a8 1999

I would have the cooling fan checked, and have the thermostat changed. An overheated thermostat (overheating caused by something else) will cause problems in the future.

SOURCE: Problem:

Problem is most likely in the electronic blend door motor or the door itself has broken.
To access the electronic temperature blend door actuator remove cassette storage box or center shelf unit, if equipped.
Remove instrument panel ash receptacle by depressing service lever. Disconnect electrical harness connector from A/C electronic door actuator motor.
Remove three retaining screws.
Carefully pull A/C electronic door actuator motor outward and off A/C evaporator housing assembly.Make sure the door it self is not cracked where the actuator hooks to it and that it will move.
Here ia a link to a pick of what you are looking at.

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