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99 Durango doesn't have a Heater Control Valve, It only has a thermostat
Simple. There is a circular gasket for each spark plug between located between the valve cover and the engine. If they are not properly sealed, the oil from the top of engine will leak out of the valve cover and pool into the spark plug sockets. You must remove the oil BEFORE you remove the spark plugs. Anyway, the fix is purchase and install a new valve cover gasket and spark plug gaskets and use a gasket sealant.
If you are talking about the IAC idel air control valve,It is as simple as disconnecting the electrical connector from the IAC valve.removing two mounting screws and remove the valve from the throttle body.Installation is reverse.Be sure to install a new O-ring. Good luck!
install updated vent control solenoid valve and jumper harness.
Each spark plug has it's own ignition coil, they are on the spark plug itself. Unplug the ignition coil connector, remove the bolt holding the coil in place, pull the coil off of the spark plug and out of the valve cover. Install the new coil.
how do install a blow valve on passa 1.8t 99
this could be valve stem seals or oil control ring,s
Remove #1 spark plug Remove valve cover Rotate engine until #1 cylinder is at TDC (Top Dead Center) intake stroke Observe intake valve install distributor so that rotor is aligned with #1 plug wire Re-install valve cover and spark plug Fire engine and then set timing using timing light
Poor oil control-worn valve guides letting the oil into the combustion chamber.
Remove the the plastic cover on the valve cover, next remove the coil,or spark plug boot. Then you have access to the spark plugs. Make sure you gap your spark plugs,before you install them. If your not sure, it's wise to do them one at a time. After the replacement, do everything in reverse order.
How to install valve cover to a 97 Nissan maxima.
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show the type of spark plugs to use and the spark plug gap )