1991 1999 ford explorer chilton User Manual

Belt routing diagram-5.0L engines
Although belt routing diagrams have been included in this section, the first places you should check for proper
belt routing are the labels in your engine compartment. These should include a belt routing diagram which
may reflect changes made during a production run.
A belt routing label can usually be found under the hood
Disconnect the negative battery cable for safety. This will help assure that no one mistakenly cranks
the engine over with your hands between the...

Once the tension is relieved, slip the belt off the pulley then slowly release the tensioner
Once the belt is off one of the pulleys, gently pivot the tensioner back into position. DO NOT allow
the tensioner to snap back, as this could damage the tensioners internal parts.
3. 
Now finish removing the belt from the other pulleys and remove it from the engine.
4. 
To install: While referring to the proper routing diagram (which you identified earlier), begin to route the belt
over the pulleys, leaving...

higher mileage engines.
But whether or not you decide to replace it, you would be wise to check it periodically to make sure it has not
become damaged or worn. Generally speaking, a severely damaged belt will show as engine performance
would drop dramatically, but a damaged belt (which could give out suddenly) may not give as much warning.
In general, any time the engine timing cover(s) is(are) removed you should inspect the belt for premature
parting, severe cracks or missing teeth. Also, an access...

Check if the teeth are cracked or damaged
Look for noticeable cracks or wear on the belt face
You may only have damage on one side of the belt; if so, the guide could be the culprit HOW TO USE THIS BOOK
70 INSPECTION 

Foreign materials can get in between the teeth and cause damage
Inspect the timing belt for cracks, fraying, glazing or damage of any kind Damage on only one side of the timing belt may indicate a faulty guide HOW TO USE THIS BOOK
INSPECTION 71 

ALWAYS replace the timing belt at the interval specified by the manufacturer
CAMSHAFT TIMING INSPECTION Locate and carefully remove the access plug from the upper portion of the timing cover.
1. 
WARNING
When turning the engine over by hand, ALWAYS rotate the crankshaft in the proper direction of rotation,
otherwise the timing belt might jump one or more teeth due to the configuration of the belt tensioner.
Turn the engine CLOCKWISE (in the normal direction of rotation) to set the engine at Top Dead...

Whenever you are checking the hoses, make sure the engine and cooling system are cold. Visually inspect for
cracking, rotting or collapsed hoses, and replace as necessary. Run your hand along the length of the hose. If a
weak or swollen spot is noted when squeezing the hose wall, the hose should be replaced.
The cracks developing along this hose are a result of age-related hardening
A hose clamp that is too tight can cause older hoses to separate and tear on either side of the clamp
HOW TO USE THIS...

A soft spongy hose (identifiable by the swollen section) will eventually burst and should be
replaced
Hoses are likely to deteriorate from the inside if the cooling system is not periodically flushed
REMOVAL & INSTALLATION CAUTION
Never remove the pressure cap while the engine is running, or personal injury from scalding hot coolant or
steam may result. If possible, wait until the engine has cooled to remove the pressure cap. If this is not
possible, wrap a thick cloth around the pressure cap and turn it...

Loosen the hose clamps at each end of the hose requiring replacement. Clamps are usually either of
the spring tension type (which require pliers to squeeze the tabs and loosen) or of the screw tension
type (which require screw or hex drivers to loosen). Pull the clamps back on the hose away from the
connection.
3. 
Squeeze the spring clamp with pliers and slide it away from hose fitting Click to enlarge
Twist, pull and slide the hose off the fitting, taking care not to damage the neck of the component...

Twist and pull the hose from the fitting to remove it.
Click to enlarge
Clean both hose mounting connections. Inspect the condition of the hose clamps and replace them, if
necessary.
5. 
To install: Dip the ends of the new hose into clean engine coolant to ease installation.
6. 
Slide the clamps over the replacement hose, then slide the hose ends over the connections into
position.
7. 
Position and secure the clamps at least  1
/4  in. (6.35mm) from the ends of the hose. Make sure they are
located beyond...