Chrysler 1997 Stratus Convertible RHD Service Manual page 1193

JX
DIAGNOSIS AND TESTING (Continued)
(11) Reconnect the rubber hose to the vacuum
inlet fitting (Fig. 5) on the EGR valve.
(12) Disconnect the rubber hose at the vacuum
outlet fitting (Fig. 5) on the EGR valve.
(13) Connect a vacuum gauge to this fitting.
(14) Disconnect the electrical connector (Fig. 5) at
the valve control. This will simulate an open circuit
(no ground from the PCM) at the valve.
(15) Start the engine and bring to operating tem-
perature.
(16) Hold the engine speed to approximately 2000
rpm while checking for engine vacuum (full-manifold)
at this fitting. To allow full manifold vacuum to
flow through the valve, exhaust back-pressure
must be present at valve. It must be high
enough to hold the bleed valve in the trans-
ducer portion of the valve closed. Have a helper
momentarily (a second or two) hold a rag over the
tailpipe opening to build some exhaust back-pressure
while observing the vacuum gauge. Heavy gloves
should be worn. Do not cover the tailpipe open-
ing for an extended period of time as damage to
components or overheating may result.
(17) As temporary back-pressure is built, full man-
ifold vacuum should be observed at the vacuum out-
let fitting. Without back-pressure, and engine at
approximately 2000 rpm, the gauge reading will be
low. This low reading is normal. At idle speed, the
gauge reading will be erratic. This is also normal.
(18) If full manifold vacuum is not present at the
outlet fitting, but was present at the inlet fitting,
replace the valve. Note: The EGR valve, valve control
and attaching hoses are serviced as one assembly.
Refer to EGR Valve Removal/Installation in this
group.
REMOVAL AND INSTALLATION
EGR VALVE AND TRANSDUCER—2.0L
If the EGR system operates incorrectly, replace the
entire EGR valve and transducer together. The EGR
valve and electrical
together.
REMOVAL
The EGR valve and EGR transducer attach to the
rear of the cylinder head (Fig. 7).
(1) Disconnect vacuum supply tube from EGR
transducer solenoid.
(2) Disconnect electrical connector from solenoid.
(3) Remove EGR tube to EGR valve screws.
(4) Remove EGR valve mounting screws. Remove
EGR valve and transducer.
(5) Clean gasket surfaces. Discard old gaskets. If
necessary, clean EGR passages.
transducer are calibrated
EGR TUBE
EMISSION CONTROL SYSTEMS
INSTALLATION
(1) Loosely install EGR valve with new gaskets.
(2) Finger tighten EGR tube fasteners.
(3) Tighten EGR tube fasteners to 11 N·m (95 in.
lbs.) torque.
(4) Tightening EGR valve mounting screws to 22
N·m (200 in. lbs.) torque.
(5) Connect vacuum supply tube to solenoid.
(6) Attach electrical connector to solenoid.
Fig. 7 EGR System
EGR VALVE AND TRANSDUCER—2.4L
If the EGR system operates incorrectly, replace the
entire EGR valve and transducer together. The EGR
valve and electrical
together.
REMOVAL
(1) Disconnect vacuum supply tube from solenoid.
(2) Disconnect electrical connector from solenoid.
(3) Remove EGR tube to EGR valve screws.
(4) Remove EGR valve mounting screws. Remove
EGR valve and transducer.
(5) Clean gasket surfaces. Discard old gaskets. If
necessary, clean EGR passages.
INSTALLATION
(1) Loosely install EGR valve with new gaskets.
(2) Finger tighten EGR tube fasteners.
(3) Tighten EGR tube fasteners to 11 N·m (95 in.
lbs.) torque.
(4) Tightening EGR valve mounting screws to 22
N·m (200 in. lbs.) torque.
(5) Connect vacuum supply tube to solenoid.
(6) Attach electrical connector to solenoid.
EGR VALVE AND TRANSDUCER—2.5L
The EGR valve attaches to the front exhaust man-
ifold. The transducer/solenoid attach to the front cyl-
inder head.
EGR ELECTRICAL TRANS- DUCER
25 - 27
transducer are calibrated
EGR VALVE