Engine - Intermittent No Start/Poor Performance
NO.: 09-12-93GROUP: Engine
DATE: Jul. 2, 1993
SUBJECT:
Engine Timing Belt Tensioner
MODELS:
1993 (LH) Concorde/Intrepid/Vision
1994 (LH) LHS/New Yorker
NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH THE 3.5L ENGINE
SYMPTOM/CONDITION:
Intermittent no start, poor engine performance, or a no start accompanied by a loud engine noise on start-up attempt.
DIAGNOSIS:
Inspect the engine camshaft and crankshaft sprockets for proper engine timing. Remove the front timing covers following the procedure outlined in the 1993 Concord/Intrepid/Vision Service Manual (Publication No. 81-270-3140) page 9-41. Check to determine if the timing marks on the camshaft sprockets are aligned properly.
Timing belts that have skipped usually cause the left camshaft sprocket to be 2-3 teeth out of time. If it is difficult to determine positively that a sprocket is out of time, place the camshaft alignment Special Tools 6642-A to the rear of the cylinder heads and align the crankshaft sprocket with TDC mark on the oil pump housing. If the plates do not align properly, the camshaft(s) is out of time.
PARTS REQUIRED:
1 Timing Belt Tensioner Pivot Snubber 4663580
1 Bond All Gel - (0.06 oz tube) 4467709
REPAIR PROCEDURE:
This repair involves installing the snubber over the timing belt tensioner plunger.
Reference:
Service Manual Publication No. 81-270-3140, pages 9-41 through 9-45.
1. Remove the timing belt covers following the procedure outlined in the service manual.
2. Remove the timing belt tensioner following the procedure outlined in the service manual.
3. Place the tensioner in a vice, and slowly compress the plunger. Install a pin through the body and plunger to retain plunger in place until tensioner is installed.
4. Apply Mopar Bond All Gel (P/N 4467709) to bottom outside edge of the Timing Belt Tensioner Pivot Snubber.
5. Install the Snubber, with the word "TOP" facing up, on top of the tensioner body with the snubber centered over the plunger.
6. Install the timing belt tensioner to the engine following the procedure outlined in the service manual.
7. Align the camshafts following the procedure outlined in the service manual under "Camshaft and Timing Belt - Installation and Timing Procedure" page 9-44.
NOTE:
INSPECT THE TENSIONER PULLEY BRACKET PIVOT BOLT FOR BINDING OR TIGHT SPOTS. THE PIVOT BOLT SHOULD ROTATE FREELY. IF BINDING IS FOUND, REMOVE THE PIVOT BOLT AND CLEAN ANY DEPOSITS ON THE BOLT WITH STEEL WOOL OR EMERY CLOTH.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE
Labor Operation No. 09-10-08-90 1.3 Hrs.
FAILURE CODE: P8 - New Part