Question about 2004 Ford Explorer
All of a sudden but the car isn't running any differently the car runs fine and sometimes the noise will stop for a 5 or 10 minutes and then come back again. The car never over heated or was low on oil. I took it to a mechanic and he says I need a new engine I just dont understand how this can be especially since there doesn't seem to be anything wrong with the car except for this knocking noise. all fluid levels are good, one mechanic told me I blew my engine but the car runs fine?? and another said its probably the tensioners I don't know what to do at this point
Get a mechanics' stethoscope and see if you can find the source of the noise. If it is loudest when the scope end is on the oil pan, you have a rod bearing problem - which means that you need a new engine.
Posted on Jun 09, 2014
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Posted on Jan 02, 2017
The blend door (mode door ) is a very common issue there is even an associated TSB t(technical service bulletin) it has to do with the blend door becoming warped and binding the accuator. In an opened or semi-closed position
Posted on Nov 19, 2008
1997-2000 EXPLORER, MOUNTAINEER
ISSUE: A "knocking" noise at start up for up to 2 minutes from the left hand front chain cassette area may occur on some vehicles. After engine shutdown, the tensioner oil supply gallery empties. The noise may be due to air entering the left hand tensioner when the engine is restarted.
ACTION: Replace the left hand camshaft tensioner with a revised Tensioner Kit. Refer to the Instruction Sheet within the Tensioner Kit for service procedure details.
WARNING: THE XU2Z-6K254-AA TENSIONER KIT IS FOR INSTALLATION ON THE LEFT SIDE OF THE ENGINE ONLY. INSTALLATION OF THIS KIT ON THE RIGHT SIDE OF THE ENGINE MAY RESULT IN ENGINE FAILURE. IF A TENSIONER IS NEEDED FOR THE RIGHT SIDE OF THE ENGINE, USE KIT XU3Z-6K254-BA.
PART NUMBER PART NAME XU2Z-6K254-AA Tensioner Kit - Left Side XU3Z-6K254-BA Tensioner Kit - Right Side
SECTION 303-01B: Engine — 4.0L SOHC 1998 Explorer/Mountaineer Workshop Manual
IN-VEHICLE REPAIR Timing Drive Components —LH Hydraulic Chain Tensioner Removal and Installation
Disconnect the LH fuel vapor management valve (VMV) hose.
Disconnect the RH VMV hose and remove the upper intake manifold.
To install, reverse the removal procedure.
Posted on May 03, 2009
If your check engine light came on when the problem occurred, then you need to have the diagnostic codes read. I am cheap, so I would suggest going to an Advance or Auto Zone, they will read the codes and interpret them for you in hopes of selling you the part that will fix it. Good Luck. I hope you find this very helpful!
Posted on Nov 22, 2009
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