1996 Dodge Caravan I need help

Tiny
MASAKIS88
  • MEMBER
  • 1996 DODGE CARAVAN
1996 Dodge Caravan Two Wheel Drive Automatic 170000 miles

The van started fine all day yesterday and I go to start the van today and it puts and I turned it off and I try to start it again and it wont stay started inless you press on the gas but it still putts and sounds like its ganna die and blows smoke out the back when u hold down on the gas I have no clue whats wrong it started fine tell I tryed to start it today
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Monday, January 26th, 2009 AT 4:16 PM

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Tiny
AC4JOHNM
  • MEMBER
Need more info
what color is the smoke, white, black or blue
what engine, 4 or 6 cilinder, (numbers on top of engine), what color is the oil, and is it full of coolant (anti freeze)

ac4johnm
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Thursday, January 29th, 2009 AT 8:10 AM
Tiny
MASAKIS88
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I got it to run fine now but when I stop it dies and I have to restart it all the time even when I back up. OK its full of oil. The oil is fine. And Its full of anitfreeze. The engine is a 3.0 v6. An I took it to schucks and it poped up a po401 code. And I talked to someone and the gave me they got 4 codes there 21, 32, 21, 55. I talked to a friend and they told me it was my egr vavle I just want to make sure before I pay 250 to fix it
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Thursday, January 29th, 2009 AT 9:28 PM
Tiny
ZACKMAN
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P0401 OBD-II Trouble Code Technical Description Insufficient EGR Flow

What does that mean?

EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor EGR (DPFE). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR.

Symptoms

You may notice drivability problems such as pinging (a.k.a. pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. There may also be other symptoms.

Causes

A code P0401 most likely means one or more of the following has happened:

* The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
* There is a blockage in the EGR (tube), most likely carbon buildup
* The EGR valve is faulty
* The EGR valve may not be opening due to a lack of vaccuum

Possible Solutions

In fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.

* Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
* Clean out the EGR valve and/or tubing to remove deposits
* Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
* Replace the DPFE sensor (with a good quality / OEM one)
* Replace the EGR valve

MIL 32 EGR Solenoid Circuit

MIL 21 corresponds to DTC P0138, P0140 and P0141. In a nutshell, Downstream O2 Sensor circuit failure

MIL 55 End of test

***Your DPFE comes as a part of your EGR, at least the one I sell.***


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Thursday, January 29th, 2009 AT 10:19 PM

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