Probe V6-153 2.5L DOHC (1994)
Technical Service Bulletin # 97-17-14
Date: 970818
Engine - Knocking/Clattering/Ticking/Tapping Noises
Article No.
97-17-14
08/18/97
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ENGINE - 2.5L - "KNOCKING," "CLATTERING,"
"TICKING," OR "TAPPING" NOISE - UPPER ENGINE
NOISE DIAGNOSTIC GUIDE - SERVICE TIP
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NOISE - "KNOCKING," "CLATTERING," "TICKING,"
"TAPPING" FROM ENGINE - UPPER ENGINE NOISE
DIAGNOSTIC GUIDE - 2.5L ENGINE - SERVICE TIP
This TSB article is being republished in its entirety to change TS8 reference within article.
ISSUE:
Upper engine noises, such as "knocking," "ticking," "clattering," or "tapping" at various engine temperatures, can be heard on some vehicles. This may
be caused by one of the following: 1) carbon knock, 2) camshaft friction spring noise, and/or 3) Hydraulic Lash Adjuster (HLA) noise.
ACTION:
Refer to the following 2.5L V6 Engine Noise Description and Diagnostic steps to pinpoint and resolve the source of the upper engine noise(s).
NOTE:
THIS TSB ARTICLE ADDRESSES ONLY THE ENGINE NOISES LISTED. FOR INFORMATION REGARDING OTHER ENGINE NOISES,
REFER TO THE APPROPRIATE YEAR PROBE SERVICE MANUAL, SECTION 03-01B.
2.5L V6 ENGINE NOISE DESCRIPTION