Mountaineer 4WD V6-4.0L VIN E (1999)
Timing Chain Tensioner: All Technical Service Bulletins
Engine - Knocking Noise From Left Side at Start Up
Article No.
99-26-5
12/27/99
^
ENGINE - 4.0L SOHC - "KNOCKING" HEARD FROM
LEFT HAND SIDE OF ENGINE AT START UP
^
NOISE - "KNOCKING" HEARD FROM LEFT HAND
SIDE OF ENGINE AT START UP - VEHICLES WITH
4.0L SOHC
FORD:
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
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION
DESCRIPTION
TIME
992605A
Install Camshaft Tensioner
1.6 Hrs.
Kit
DEALER CODING
CONDITION
BASIC PART NO.
CODE
6K254
42
OASIS CODES: 497000, 702100
