Chrysler Repair: 96 Plymouth Breeze p0300 random misfire, valve models, plymouth breeze

Question
Car runs fine except throws random p0300 code.  I have logged the codes over a weeks time and found no real correlation in the freeze frame data except that the eng. temperature is always about the same when it occurs.  No noticeable loss in power when CE light comes on.  Had it in to the shop 3 times and they could not pinpoint problem after going through the whole system. Inspection is coming due, any suggestions on how to pinpoint the problem would be much appreciated.

Best Regards, Mike

Answer
18-020-01
GROUP: Vehicle
Performance
DATE: Aug. 17, 2001
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retreival system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of DaimlerChrysler Corporation.
SUBJECT:
Rough Idle, Hard Start, Start & Stall
OVERVIEW:
This bulletin involves installing a revised EGR valve.
MODELS:
1995 - 2000 (JA) Breeze/Cirrus/Stratus
1996 - 2000 (JX) Sebring Convertible
NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 2.5L ENGINE.
SYMPTOM/CONDITION:
Vehicle may intermittently exhibit any of the following conditions:
• Rough engine idle.
• Hard start or long crank after hot soak.
• Start and stall when started with cold engine.
• Diagnostic Trouble Code (DTC) P0300, Multiple Cylinder Mis-fire.
DIAGNOSIS:
Using the Diagnostic Scan Tool (DRB III®) with the appropriate Diagnostic Procedures,
verify all engine/transmission systems are functioning as designed. If other DTC’s are
present, record them on the repair order and repair as necessary before proceeding
further with this bulletin. If the condition(s) can be duplicated or is described by
the customer, it may be caused by the EGR valve being stuck partially open. To
confirm whether or not the valve is stuck partially open:
1. If the condition(s) can be duplicated, then block off the EGR passageway to the
intake manifold. If the condition(s) disappear, but will reappear when the EGR
passageway is re-opened, perform the Repair Procedure.
2. If the condition(s) cannot be duplicated, but are described by the
customer, perform the Repair procedure.
PARTS REQUIRED:
Qty. Part No. Description
1 04287646AC Valve, EGR
REPAIR PROCEDURE: