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Ticking Sound in the Engine

 
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Old 28 Jul 2012, 01:01 pm
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Default Ticking Sound in the Engine

hello everyone

I've 2007 2.4 Automatic PT, the thing is that i have this ticking sound in the engine, it's kind of weird comparing to the other PT's sound engine.

it's kind of loud when i first start up the car in morning ( when the engine is cold) then it decreases a bit , but still a bit noisy

the sound just giving me the feeling that i drive a diesel engine.

if anyone had faced this problem be4 and managed to fix it, I'd appreciate it

looking forward to hear your advices & suggestions

Thanks in advance
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Old 28 Jul 2012, 01:09 pm
Ray_Dockrey's Avatar
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Default Re: Ticking Sound in the Engine

Lots of things it could be but what first came to mind would be an exhaust leak.
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Old 28 Jul 2012, 01:23 pm
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Default Re: Ticking Sound in the Engine

Lot of "clicking" threads came up in a search but only a couple "ticking". What I did uncover is a few questions. Does the ticking continue when your at a stop, in neutral or when driving? If your driving with the noise and speed up, does the ticking go faster? While driving with the noise, does it continue if you slow down and put your foot on the breaks?

There was a TSB (Technical Service Bulletin) on engine noise:

SUBJECT:
Irregular Engine Snapping Sound
OVERVIEW:
This bulletin involves chamfering the bore radius on cam bearing caps
L2 through L5 and R2 through R5.
MODELS:
2001 - 2004 (JR) Sebring Convertible/Sebring Sedan/Stratus Sedan
2002 - 2004 (KJ) Liberty
2002 - 2004 (KJ) Cherokee (International Markets)
2003 - 2004 (PL) Neon
2001 - 2004 (PT) PT Cruiser
2001 - 2004 (RG) Chrysler Voyager (International Markets)
2001 - 2004 (RS) Town & Country/ Caravan/Voyager
2003 - 2004 (TJ) Wrangler
NOTE: This bulletin applies to vehicles equipped with a 2.0L, 2.4L DOHC or 2.4L
Turbo engine (sales code ECC, EDZ, ED1, EDV, ED2 or EDT).
SYMPTOM/CONDITION:
The sound may be noticed when the engine is idling in park between idle rpm and 1400
rpm at normal operating temperature. The sound is on the upper end of the engine
(cylinder head) towards the front of the engine or passenger side (right side). The sound is
irregular, not periodic or harmonious. The frequency of the sound will increase with RPM.
The sound is more of a higher pitch snapping noise not a low metallic knock.
DIAGNOSIS:
If the vehicle operator describes the Symptom/Condition and the technician determines
that the sound is from the upper end of the engine (cylinder head) towards the front of
the engine or passenger side (right side), perform the Repair Procedure.
09-007-04 -2-
REPAIR PROCEDURE:
1. Remove the cylinder head cover (Refer to information available in TechCONNECT
9 - ENGINE/CYLINDER HEAD COVER - Removal)
2. Remove L2 cam bearing cap (Fig. 1).
NOTE: Do not remove the #L1/R1 or L6 cam bearing caps, or loosen the fasteners.
NOTE: Only remove one cam bearing cap at a time.
Fig. 1 CAMSHAFT BEARING CAP IDENTIFICATION
3. Lightly chamfer the two bore radius edges with a small hand file, creating a 45 chamfer
1.0 to 1.5 mm in width along the edge of each bore radius (Fig. 2).
CAUTION: Be careful not to scratch bore surface of cam bearing
cap. Chamfer both bore radius.
Fig. 2 CAMSHAFT BEARING CAP
1 - CAM BEARING CAP RADIUS
4. Clean part to remove any aluminum filings prior to reinstalling.
-3- 09-007-04
5. Reinstall L2 cam bearing cap by loosely assembling fasteners. Prior to and during the
torquing of each fastener, twist the cam bearing cap by hand in a clockwise direction,
as viewed from the top of the engine. Torque M6 fasteners to 12 Nm (105 in. lbs.)
while maintaining a clockwise twisting force on the cam bearing cap.
6. Repeat steps 2 through 4 for cam bearing caps L3, L4, L5, R2, R3, R4, R5 and R6.
POLICY:
Reimbursable within the provisions of the warranty.
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Last edited by CREWZIN; 28 Jul 2012 at 01:30 pm.
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