Question about Dodge Ram 1500

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Check engine light on code po505 99 dodge ram 1500 i have change iac tps map sensors still idling high rpm is about 1400 exhaust getting red hot sucking air at back of throtlle body

Code po505 i have changed iac tps map sensors and still rpm at abuot 1400 exhaust getting red hot put it in drive idle come down some

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Iac valve could be stuck

Posted on Dec 05, 2014

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2002 dodge ram 4.7 rough idle and sometimes dies at red lights or stopped in traffic i cleaned throttle body no change could it be my map sensor going bad? Can i clean it? Where is it located


Check for any vacuum leaks from loose/disconnected/swollen hoses under the hood. Is the check engine light on? If so, scan the codes to see if any sensors may be suspect before guessing

Oct 17, 2015 | Dodge Cars & Trucks

1 Answer

2005 Dodge Ram 1500 4.7 Engine. Starts fine, Idles fine, but when engine shifts into high gear and RPM lowers engine runs really rough under load


Have you checked for a broken valve spring. Repaired a dodge engine with the same running issue as you have described and it was a broken intake valve spring.

Feb 22, 2015 | 2005 Dodge Ram 1500

1 Answer

Have 1999 dodge 2500 QCab when you start it idles at 13-1400 rpm nd wont drop back don to normal rpm


check your plug wires, your tps sensor, mass air flow sensor, good luck

Oct 03, 2014 | 1999 Dodge Ram

2 Answers

2004 dodge ram 1500 hemi 5.7 engine dies when stopping, or idles irradic at low speeds when accelarating


Check/clean the MAP sensor and throttle position sensor. This should fix the issue. Its a common problem with Chrysler products.

Oct 26, 2012 | 2004 Dodge Ram 1500

2 Answers

Stalls while in drive with foot on brake , changed MAP Sensor, Crank Shaft Sensor , Distributor, Fuel Pump, Fuel Filter , have ran out of ideas


I would check the IAC motor or idle air control motor, heres a little info.about the part.Stratus Sedan, 1999-2005 Idle Air Control Motor

Print


Description & Operation

Not for Dodge Stratus Sedan
The idle air control motor (IAC) attaches to the throttle body. It is an electric stepper motor. The PCM adjusts engine idle speed through the idle air control motor to compensate for engine load, coolant temperature or barometric pressure changes. The throttle body has an air bypass passage that provides air for the engine during closed throttle idle. The idle air control motor pintle protrudes into the air bypass passage and regulates airflow through it.
The PCM adjusts engine idle speed by moving the IAC motor pintle in and out of the bypass passage. The adjustments are based on inputs the PCM receives. The inputs are from the throttle position sensor, crankshaft position sensor, coolant temperature sensor, MAP sensor, vehicle speed sensor and various switch operations (brake, park/neutral, air conditioning).

0996b43f8020234f.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig.

Not for Dodge Stratus Sedan
When engine rpm is above idle speed, the IAC is used for the following functions:


Off-idle dashpot Deceleration air flow control A/C compressor load control (also opens the passage slightly before the compressor is engaged so that the engine rpm does not dip down when the compressor engages)
The idle air control motor (IAC) attaches to the throttle body. It is an electric stepper motor. The PCM adjusts engine idle speed through the idle air control motor to compensate for engine load, coolant temperature or barometric pressure changes. The throttle body has an air bypass passage that provides air for the engine during closed throttle idle. The idle air control motor pintle protrudes into the air bypass passage and regulates airflow through it.
The PCM adjusts engine idle speed by moving the IAC motor pintle in and out of the bypass passage. The adjustments are based on inputs the PCM receives. The inputs are from the throttle position sensor, crankshaft position sensor, coolant temperature sensor, MAP sensor, vehicle speed sensor and various switch operations (brake, park/neutral, air conditioning).

21180_cdia_g257.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig.

When engine rpm is above idle speed, the IAC is used for the following functions:


Off-idle dashpot Deceleration air flow control A/C compressor load control (also opens the passage slightly before the compressor is engaged so that the engine rpm does not dip down when the compressor engages)
Target Idle
Target idle is determined by the following inputs:


Gear position ECT Sensor Battery voltage Ambient/Battery Temperature Sensor VSS TPS MAP Sensor
Target idle is determined by the following inputs:


Gear position ECT Sensor Battery voltage Ambient/Battery Temperature Sensor VSS TPS MAP Sensor


Removal & Installation

  1. Disconnect the negative battery cable.
  2. Disconnect the IAC electrical connector.
  3. Remove the IAC mounting screws.
  4. Remove the IAC.

To Install:
  1. Install the IAC to the throttle body.
  2. Tighten mounting screws to 5.1 Nm (45 inch lbs.) torque.
  3. Attach electrical connector to the IAC.
  4. Connect the negative battery cable.

    0996b43f80202350.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig.


  1. Disconnect the negative battery cable.
  2. Disconnect the IAC electrical connector.
  3. Remove the IAC mounting screws.
  4. Remove the IAC.

To Install:
  1. Install the IAC to the throttle body.
  2. Tighten mounting screws to 5.1 Nm (45 inch lbs.) torque.
  3. Attach electrical connector to the IAC.
  4. Connect the negative battery cable.

May 11, 2012 | 2000 Chrysler Cirrus

1 Answer

2004 Ram 1500 1/2 ton 2WD. Code P0068 is what is coming up. Truck will idle high/low at times and will die sometimes when I stop. Engine light is on, I have checked for vac leaks and cleaned the sensor...


It's a map/tps sensor correlation code, essentially it means the map sensor reading isn't what's expected with the tps reading and vice versa! It sounds like your tps sensor is probably bad or the circuit to one of those 2 sensors.

Hope helps (remember rated this).

Aug 17, 2010 | 2004 Dodge Ram 1500

3 Answers

1997 DODGE RAM 1500 360 VERY LOW IDLE


I think you have ruled out the engine with all the parts you have replace. The transmission torque convertor is in lock up mode all the time. The engine is having to hard of a time to stay at the normal idle. The over drive clutches and soleniod are most likely damaged in the transmission.
I think you should take the vehicle to a trasnmission shop , The can check the torque convetror soleniods and pressure control soleniod.

The oil light coming on bothers me. I know you have the rebuilt engine in the vehicle but I think the oil pump in the engine is starting to go out or could be weak. The lower bearings connected to the crank shaft might be starting to leak. Have the oil pressure checked .

Mar 19, 2009 | 1998 Dodge Ram 1500 4WD

1 Answer

M.A.P Sensor?


check the iac valve. the sensor on the back of the trottle body. make sure the plunger is functioning properly. a haynes manual will tell you how to check it. if it s not functioning right it s only about $40. i had a similar problem with a 98 5.2

Mar 15, 2009 | 1996 Dodge Ram

2 Answers

2001 Dodge 1500 4x4 fault code PO 108


look for vacuum leak at air filter to throttle body ..all along the snorkel use carb cleaner while running and waft areas described til motor changes personalitly

Jan 13, 2009 | 2001 Dodge Ram 1500 Truck 2WD

11 Answers

99 dodge ram 1500 5.2 liter stalling on start up.


Check and clean idle air control valve
check for vacuum leaks
suspect idle air control valve

Sep 11, 2008 | 1999 Dodge Ram

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