1992 Dodge Van ENGINE STALLING

Tiny
ERNEST CRAWLEY
  • MEMBER
  • 1992 DODGE VAN
  • V8
  • 2WD
  • AUTOMATIC
  • 263,789 MILES
ENGINE WILL STALL ANYWHERE BETWEEN 10 TO 80MPH.

ONE OF TWO THINGS WILL HAPPEN 1. SOMETIMES WHILE COASTING TO A STOP THE ENGINE WILL START UP ON ITS OWN 2. I WILL HAVE TO WAIT 15 TO 20MIN BEFORE THE ENGINE WILL START UP AGAIN. THIS PROBLEM SPORADICALY HAPPENS ANYWHERE BETWEEN 2 TO 3 WEEKS OR MONTHS AT A TIME.

I HAVE ALREADY REPLACED: FUEL PUMP, DISTRIBUTOR, PICK UP COIL, FUEL FILTER, ALL SPARK PLUG WIRES AND I HAD A COMPUTER DIAGONISTIC TEST RAN; IT SHOWED NO FAULTS, BECAUSE THE CHECK ENGINE LIGHT IS NOT ON.
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Thursday, October 30th, 2008 AT 10:22 PM

5 Replies

Tiny
IMPALASS
  • EXPERT
Hello

I will need a little more info to better assist you. Is this a B150 Ton, B250 ton or a B350 1 ton. Also, what is the exact size of the engine and your 8th letter of the VIN number.
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Thursday, October 30th, 2008 AT 10:48 PM
Tiny
ERNEST CRAWLEY
  • MEMBER
INFORMATION YOU ASK FOR

B250 3/4 TON

318 ENGINE

VIN NUMBER 2B6HB21Y3NK163491
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Thursday, October 30th, 2008 AT 11:35 PM
Tiny
IMPALASS
  • EXPERT
Hello -

Thanks for the info. This could be numerous things. It is obvious the vehicle has been outstanding to you since there is a large number of miles on it.

I know you have accomplished checks and replaced the items stated. At one part you said you replaced the plug wires......you did replace the plugs too didn't you?

This is what I suggest. I know you have check this but if you would again. You can go to Auto Zone or O'Reilly's and they can check to see if your car has any DTC codes for free. Make sure if it does and you don't fix it and you need to get back with us you tell us the code number and what they said the code meant. Also while there have them pull their tester out and for free they can check your battery, alternator and starter.

Next - even though you have replaced the fuel pump and filter, that doesn't mean you are getting good fuel pressure and consistent pressure. Please check the fuel pressure.

Also please check the compression and let me know what each cylinder is.

My initial thought is it may be a fuel pressure regulator. It has a spring and diaphragm in it. It works off the vacuum of the manifold and regulates the fuel to the rails.

You might also check the ASD and fuel pressure relay. They may be getting hot. They do have a lot of miles on them. I have attached the checks or you could just replace them.


http://www.2carpros.com/forum/automotive_pictures/248015_Fuel_relay_1.jpg



NOTES:
The following operations/tests apply to these relays only: Automatic Shutdown (ASD) and Fuel Pump.

The relay terminal numbers can be found on the bottom of the relay:

Terminal number 30 is connected to battery voltage and can be switched or B + (hot) at all times. Terminal number 87A is connected (a circuit is formed) to terminal 30 in the de-energized (normally OFF) position.
Terminal number 87 is connected (a circuit is formed) to terminal 30 in the energized (ON) position. Terminal number 87 then supplies battery voltage to the component being operated.
Terminal number 86 is connected to a switched (+) power source.
Terminal number 85 is grounded by the Engine Controller.
PROCEDURE

Remove relay before testing.
Using an ohmmeter, perform a resistance test between terminals 85 and 86. Resistance value (ohms) should be 75 5 ohms for resistor equipped relays.
Connect the ohmmeter between terminals number 87A and 30. Continuity should be present at this time.
Connect the ohmmeter between terminals number 87 and 30. Continuity should not be present at this time.
Use a set of jumper wires (16 gauge or smaller). Connect one jumper wire between terminal number 85 (on the relay) to the ground side (-) of a 12 Volt power source.
Attach the other jumper wire to the positive side (+) of a 12V power source. Do not connect this jumper wire to relay at this time. CAUTION: Do not allow the ohmmeter to contact terminals 85 or 86 during these tests. Damage to ohmmeter may result.
Attach the other jumper wire (12V +) to terminal number 86. This will activate the relay. Continuity should now be present between terminals number 87 and 30. Continuity should not be present between terminals number 87A and 30.
Disconnect jumper wires from relay and 12 Volt power source.
If continuity or resistance tests did not pass, replace relay.
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Friday, October 31st, 2008 AT 12:47 AM
Tiny
ERNEST CRAWLEY
  • MEMBER
1. THERE ARE KNOW DTC CODE

2. REPLACE AUTO SHUTDOWN

3. REPLACE FUEL PUMP RELAY

4. REPLACE FUEL PRESSURE REGULATOR

5. MECH STATED THAT BULKHEAD CONNECTOR CAN NOT BE REPLACE

6. PICK UP VAN ON FRIDAY NIGHT AND ENGINE STALL ON SAT 30MIN LATER RUNNING LIKE A NEW CAR

THIS IS WHAT MY MECH THANKS
NOT A FUEL PROBLEM MECH SAID HE THANKS IF IT WERE COMPUTER WE WOULD LOSE BOTH FUEL AND SPARK MECH STATED IT WOULD NOT DIE ON HIM BUT WOULD NOT START ONE MORNING. STILL HAD FUEL PRESSURE

THANK YOU
LOOKING FOR SOME HELP
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Saturday, November 1st, 2008 AT 2:16 PM
Tiny
BMRFIXIT
  • EXPERT
Thanks for the email
Was the crank sensor checked
also the coil was famous for it failures


http://www.2carpros.com/forum/automotive_pictures/99387_Graphic1_26.jpg

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Saturday, November 1st, 2008 AT 10:33 PM

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