Question about Ford Taurus
Unfortunately there are several things that code could mean. Unless you still have the number code, it's hard to say. What is not hard to say is that, Ford should have caught that and addressed it in the immediate repair. Sounds like they got all the easy stuff in hopes that you would come back and spend more money. If there is a "check engine" light on, there is an issue and should be checked out and repaired. My first call would be to the Service manager of the dealer and kindly explain the issue that the technician MISSED. If he can't do anything, talk to the General manager. Let me know if you need anything else.
Posted on Oct 14, 2010
Some vehicles, may exhibit drivability conditions. These may include: •
No start • Difficult to start • Stall • Low idle • Rough idle • High
idle • Hesitation/surge while accelerating or at steady speed
These conditions may be intermittent with no Diagnostic Trouble Codes (DTC) and no Malfunction Indicator Lamp (MIL). In some cases DTC and MIL may be evident.
P0506 - Idle Air Control (IAC) System RPM Lower Than Expected
This P0506 code is one that's sometimes triggered on vehicles that have electronic throttle control. That is, they don't have a regular throttle cable from the accelerator pedal to the engine. They rely on sensors and electronics to control the throttle. In this case, the P0506 DTC (diagnostic trouble code) is triggered when the PCM (powertrain control module) detects an engine idle speed that is lower than the desired (pre-programmed) RPM.
Potential Symptoms: Most likely the only thing you'll notice is the idle speed is lower than normal so it will likely be rougher. There are potentially other symptoms as well. Of course, when trouble codes are set, the MIL (malfunction indicator lamp, a.k.a. the check engine light) illuminates.
Causes: A P0506 DTC trouble code may be caused by one or more of the following:
* A vacuum leak
* An air restriction in the intake air path or exhuast
* A faulty positive crankcase ventilation (PCV) valve
* Damaged/failed/dirty throttle body
* Internal engine problem
* Failed PCM
This DTC is more of an informational code, so if there are any other codes set, diagnose them first. If there are no other codes, inspect for vacuum leaks, restrictions, and damage. If there are no symptoms other than the DTC itself, just clear the code and see whether it returns.
Other related DTCs: P0507
Posted on Oct 15, 2010
What was the exact trouble code number? Autozone is reputable, I have used there scan tool before and it was 100% correct. The transmission sensor is located on the drivers side of the transmission behind the front wheel, remove the plastic cover to see it.
Posted on Oct 14, 2010
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Posted on Jan 02, 2017
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