Ford Thunderbird Manual page 306

03-08-3
DESCRIPTION AND OPERATION (Continued)
Exhaust Emission Control System
Vehicle Emission Control Information Decal
Vacuum hoses on the engine use a color stripe to aid in
hose routing checks. The stripe will usually be the
same color as on the vehicle emission control
information decal, but the correct vacuum hose routing
must be verified by using the correct component
connections shown on the vehicle emission control
information decal.
Typical Vehicle Emission Control Information Decal
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DIAGNOSIS AND TESTING
Engine Emission Control
Refer to the Powertrain Control I Emissions Diagnosis
Manual 1 •
IN-VEHICLE SERVICE
PCV Valve
3.8L Engine
Removal
1 . Disconnect crankcase ventilation tube (6758)
from positive crankcase ventilation valve (PCV
valve)(6A666).
1 Can be purchased as a separate item.
Engine Emission Control
( '-'/-
-) F or d rn t o r
equipped wllh electronic engine
Thll V8hlde Is
systlms speed
. Engine
,
Idle mlxlure, and
Ide
lln*'CI Powertraln
adJU8Iable.
.,.
not See
Diagnosis
Emlulona
Manual for addl llonal lnfonnal lori.
check
engine liming parking
181 brake and
T o
wheels. normal
Engine
must be at
temperatu re ,
transmla8lon In
acces so ries Olf.
engine.
Olf
(1) Tum
(2) the In-line Spout Connector
Dleconnect
warmed-up �·
previously
( 3 ) Re-start
Ignition timing
1hat the
Is
(4) V.,tty 10
shop manual
not ... .
eleclrlcal connecl lon
(5) engine restore
Olf and
Tum
Ene1gy
Use
SAE 5W-30 01 API Se1v1ce SG •
C o rn p a n y
V E H I C L E E l .l i S S I O t J
c o r n R D L l t J f O H I . l !IT I O ; J
control - --
Ignition
Conlroll
block
operallng
neulral
, and
oOII
( ) .
BTDC. If
.
eor.vq
U.
2. Remove positive crankcase ventilation valve from
PCV valve crankcase ventilation grommet
(6A892).
3.
Inspect PCV valve and crankcase ventilation
grommet for deterioration. Replace if necessary.
03-08-3
A18847-A
1997 Thunderbird, Cougar July 1996