QuestionQUESTION: have an 2003 grand caravan has erratic surging/ stumbles. tach jumps erraticly, stalls at stops sometimes. suspected crank sensor due to tach jumping. but no change. dues not have any codes, and engine runs fine under all load conditions normaly. all data stream info seems to be normal. any thoughts, all are welcome. and no im in va not atlanta:)
ANSWER: check throtle body for being cogged up.
---------- FOLLOW-UP ----------
QUESTION: throttle body clear, problem happens sparaticaly in my mind this eliminates tune up items fuel filter and restricted injectors and such. other thoughts? thanks:)
Answerpossible this
SUBJECT:
No-Start, Start & Stall, MIL Illumination, Diagnostic Trouble Codes (DTCs) P0508/P0509
OVERVIEW:
This bulletin involves replacing the Powertrain Control Module (PCM).
MODELS:
2003 (RG) Chrysler Voyager
2003 (RS) Town & Country/Caravan/Voyager
NOTE: This bulletin applies to vehicles equipped with a 3.3L or 3.8L
engine (sales codes EGA, EGH, EGM).
SYMPTOM/CONDITION:
Vehicle operator may describe a engine no-start, or start & stall, or MIL illumination
with a rough/fluctuating idle. This condition may only occur in cold ambient
temperatures; below 0 C. (32 F.). This condition may not be able to be duplicated
after the PCM has warmed above 0 C. (32 F.). This condition can only be
diagnosed in cold ambient temperatures; below 0 C. (32 F.).
Technicians may find the following DTCs:
P0508 - IAC Value Sense Circuit Low
P0509 - IAC Value Sense Circuit High
DIAGNOSIS:
If the vehicle operator describes, or the technician experiences, any of the
Symptom/Conditions, perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
AR See Note Below Module, Powertrain Control
NOTE: Order the part number PCM that is currently on the vehicle
