Passport EX 4WD V6-3.2L DOHC (6VD1) (2000)
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Fuel Pressure Regulator: Customer Interest
Engine Controls - High/Erratic Engine Idle
01-080
August 14, 2001
Applies To:
2000-02 Passport - ALL
2000-02 Passport: High or Erratic Idle
SYMPTOM
The engine occasionally idles at too high a speed, or the idle speed fluctuates.
PROBABLE CAUSES
The symptom could be the result of any of these conditions:
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Loose or corroded engine or body ground
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High resistance in the APPS ground circuit
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PSP (power steering pressure) switch is internally shorted to ground
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Fuel pressure regulator is leaking fuel into the intake manifold
CORRECTIVE ACTION
Diagnose the cause of the idle condition, and select the proper REPAIR PROCEDURE.
PARTS INFORMATION
REQUIRED MATERIALS
REQUIRED SOFTWARE
Each REPAIR PROCEDURE requires you to use the Smart Cable to reprogram the PCM with the latest software. To select the latest software from the
CDROM, enter the year, model, engine, transmission, and emissions type (49-state or California). This gives you a list of broadcast codes. Select the
broadcast code at the top of the list.
WARRANTY CLAIM INFORMATION
Refer to the Warranty Claim Information for each Repair Procedure.
DIAGNOSIS
1.
Find out from the customer when the high or erratic idle condition occurs and what the RPM range is:
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Within 20 minutes of a cold start
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After braking to a stop
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All the time
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Intermittently, with no set pattern
