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Engine quits while driving

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  #1  
Old 03-13-2006, 09:10 PM
wye1 wye1 is offline
 
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Default Engine quits while driving

1994 Dodge B250, 5.2L V-8, AT. Engine sometimes quits while driving, not speed related or distance related. It just dies (no gasping, no lurching, no sputtering), then may restart in an hour, in a few hours or overnight but it always restarts easily after passage of enough time (however long that may be). Have replaced fuel filter, ASD, fuel module, crankshaft sensor, coil, pickup plate in distributor and removed after-market alarm system. Could the ECU be involved? If so, where can I get one tested (lots of places for Japanese cars)? Other suggestions for next try?
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  #2  
Old 03-16-2006, 01:49 PM
chopper chopper is offline
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Default RE: Engine quits while driving

These mystery problems are usually a fault in the engine computer.They can fail due to a broken connection in the circuit board that opens and closes with vibration or heat.This will be nearly impossible to diagnose without having the problem manifest itself while at a shop with computer diagnostic capabilities.
I would try a different computer either from a junker with the same computer code or get a new one from the dealer.Expensive but [:@]
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  #3  
Old 03-23-2006, 04:10 PM
wye1 wye1 is offline
 
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Default RE: Engine quits while driving

Chopper, thanks for your response. I came to the conclusion that the computer was at fault. So, I removed the computer cover and discovered that the heat sinks and components were covered with a thick coat of grime. I tried cleaning without much success in removing the grime but did not know what solvents were acceptable. The heat sinks had to be limited in their function - just too much buildup. My limited cleaning revealed lots of cracks in whatever "sealant base" covered much of the components - looked like heat related. I have just installed a rebuilt computer ($165) and will test drive it later today. It cranked up right away (as usual), ran a little rough for a couple of minutes, then smoothed out. If this appears to fix the problem (500 miles w/o failure is my benchmark), it will be awhile before I post else I will post failure when that occurs.
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  #4  
Old 04-10-2006, 07:19 PM
wye1 wye1 is offline
 
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Default RE: Engine quits while driving

Well, I'm not ready to declare victory but I've driven my van over 500 miles without the engine quitting! Solution was to replace the ECU. I found a good source for rebuilt ECUs on the web; lots less costly than a new one!
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  #5  
Old 04-19-2006, 10:23 AM
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stev stev is offline
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Default RE: Engine quits while driving

wye1,

So what is the link for this ECU on the web?

Stev
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  #6  
Old 05-22-2006, 12:57 AM
deadbeatdodge deadbeatdodge is offline
 
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Default RE: Engine quits while driving

I have similar problem with my demon possessed 88 ram 250 van. I discovered and replaced a bad fuel pump relay and it started up and ran perfectly. Then it died again while driving! I suspected the relay once again but isolated it and it tested out OK. When I jumpered 12-Volts from the battery to the relay directly, it started up 1st time and ran great. One of the wires (blue/white stripe) to the relay comes directly from the ECU. I removed the ECU to find tons of debris and dirt inside. It's air cooled by a vent hose in the grille which will suck up rocks and dirt if you ever drive on a dirt road. Anyhow, once I cleaned out the ECU, the condition seemed ok. However, there were lots of hairline cracks in the amber resin coating over the circuitry. Not sure how to repair this at the component level, so I will try to replace with a rebuilt ECU. This has to be the problem, I've already tried everything else possible. My mechanic was stumped too! Any info on where to buy a rebuilt or used ECU would be appreciated. I will post results once I swap out the ECU.
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  #7  
Old 05-25-2006, 10:08 PM
kethc77 kethc77 is offline
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Default RE: Engine quits while driving

i've got the same problem with my 93 B350 with a 5.9, where is the website for the rebuilt ECM's?
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  #8  
Old 05-30-2006, 12:43 PM
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stev stev is offline
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Default RE: Engine quits while driving

Hey guys, I PM'ed wye1. He's been very busy. But, did provide the info to me.

http://www.acdelcocomputers.com/comp...rycomputer.htm

Per his e-mail ...

--- clip in ---

Stevan:

Sorry it took so long to get back to you.

I bought my computer from:
http://www.acdelcocomputers.com/comp...rycomputer.htm

They charged me for a "core" which I returned; however, I have yet to

get credit for the core. You might want to check that closely with them.

Let me know if this solves your van problem.

Earl
ehillard@arbbs.net

stev from Dodge Forum wrote:

>Earl,
>
>You had posted in the Dodge Forum about finding a place on the interent that
sells ECM's for Dodge Ram Vans. Please post in the forum under your topic or
you can e-mail me back at blanked@juno.com
>
>Thanks!
>
>Stevan
>

--- clip out ---
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Last edited by stev; 04-20-2009 at 11:22 PM..
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  #9  
Old 06-20-2006, 09:38 PM
killerdad killerdad is offline
 
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Default RE: Engine quits while driving

thats funny i had the same problem with a 92 b-250 3.9 v-6 van i changed the computer,fuel pump (that was lots of fun) fuel filter, coil,ogs and cat converter. no luck! it would run like a champ but now and then just quit, but restart after time AND THEN someone told me about the hayes switch! the hayes switch you ask? (me to) well the hayes switch is like a tilt switch on a pinball mach. if the vehicle flips over it shuts off the fuel and elc. my hayes switch was bad
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  #10  
Old 08-07-2006, 04:46 PM
kethc77 kethc77 is offline
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Default RE: Engine quits while driving

where would i look for that hayes switch?
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  #11  
Old 08-21-2006, 08:01 PM
bnm4805 bnm4805 is offline
 
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Default RE: Engine quits while driving

Does anyone know if this has happened to any Dodge Caravans? I have a 2006 Caravan that has died out 3 times in the 4 months that I have owned it and the dealership keeps telling me nothing is wrong with it because it will not die out when they are looking at it. Please advise as soon as possible due to the fact that we are fighting the Lemon Law with the dealership and Chrysler directly.
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  #12  
Old 10-12-2006, 01:21 AM
tampasailor tampasailor is offline
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Default RE: Engine quits while driving

a used computer from ebay for 30.00 fixed my problem on my 87 Ram 250 van. discount auto have them too and you may be able to return it if turns out it is not the problem. I have had a bad capacitor do similar in the past.. even new ones can be tempermental with heat. put a new cap in and find you still have problems will cause some head scratching... many made in china these days. they dont make em like they used to!
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  #13  
Old 10-12-2006, 09:05 PM
hillsoftn hillsoftn is offline
 
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Default RE: Engine quits while driving

Same problem here with 92 ram van. Have already replace computer. What exactly is the Hayes Switch and where is it located. Is it the same as the auto shutdown relay? Thanks for any help!
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  #14  
Old 10-15-2006, 01:25 PM
steve05ram360 steve05ram360 is offline
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Default RE: Engine quits while driving

could be the crank position sensor. they are also a culprit for motors dying.
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  #15  
Old 10-19-2006, 08:10 PM
TwistedEX TwistedEX is offline
 
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Default RE: Engine quits while driving

Having what I think is a similar problem. My van starts and runs OK, but both my check engine lights are on (there's one on the speedo board and one next to the radio, go figure). I've checked the codes and replaced a sensor that I thought was the problem, but now *I can't get the PCM to reset*. I've disconnected the battery with the lights on for an hour, and when I reconnect it still has the same codes in it. It been a couple of months and the check engine light is still on, so its not the battery disconnect error. Is my PCM bad? Can somebody tell me where its located in the cabin?
1992 Ramvan 350 Cargo 390ci Auto w/OD

P.S. about 4 years ago I had the transmission rebuilt and I think the mechanic put the wrong speedo gear in, because my speedo is off by 5 mph...
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  #16  
Old 10-23-2006, 04:23 PM
MuskratJames MuskratJames is offline
 
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Default RE: Engine quits while driving

You know, my Mom's '96 Caravan (with that awful 3.0 Mitsu V6) had the same problem, except it would always start right back up. It would just stall with no warning and for no reason, even did it once on the freeway during rush hour. Dealer never could find it, after the third occurance we gave up and bought something else. I suspect something in the ECU itself had gone haywire.
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  #17  
Old 10-23-2006, 07:23 PM
steve05ram360 steve05ram360 is offline
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Default RE: Engine quits while driving

probably the crank position sensor... i've heard of this failure on alot of other cars too... sometimes they'll start back up, other times it takes a while for things to cool downa nd satart working agian.
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  #18  
Old 11-14-2011, 12:44 PM
FL_Bill FL_Bill is offline
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Default Hey Killer Dad....don't kill me!!

Quote:
Originally Posted by killerdad View Post
thats funny i had the same problem with a 92 b-250 3.9 v-6 van i changed the computer,fuel pump (that was lots of fun) fuel filter, coil,ogs and cat converter. no luck! it would run like a champ but now and then just quit, but restart after time AND THEN someone told me about the hayes switch! the hayes switch you ask? (me to) well the hayes switch is like a tilt switch on a pinball mach. if the vehicle flips over it shuts off the fuel and elc. my hayes switch was bad
Hey Killerdad, that is funny because I am a certified Automotive Tech with over 20 years professional experience and 3 years working at a dodge dealership, 92-95, and I never heard of this “hayes switch”. So I called and talked to a few of my friends that currently still work in the parts departments at a local dodge-ship and they too never heard of such a thing.

??

Maybe you are calling it the wrong thing? I know of an ASD relay which it job is to shut down ever thing. It powers up the field of the alternator, the fuel injectors, the ignition coil, the heated oxygen sensor, and the PCM.

Hopefully you can supply a part number to this mysterious switch??


I am not really trying to call you out, just hoping to verify your post.


FL Bill
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  #19  
Old 11-14-2011, 07:34 PM
alloro alloro is offline
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Default

Quote:
Originally Posted by FL_Bill View Post
Hopefully you can supply a part number to this mysterious switch?
Since you did quote him, I trust you read the part about the purpose of this switch is to shut off the fuel supply should the vehicle roll over? I would think that a "certified Automotive Tech with over 20 years professional experience and 3 years working at a dodge dealership", as well as those currently employed in a Dodge dealership part department, would know what a Fuel Cutoff Switch (a.k.a. Inertia Switch) is!
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  #20  
Old 11-15-2011, 10:50 AM
FL_Bill FL_Bill is offline
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Default Well I did not claim to know everything....

Here we go...
One of the reasons I hardly post on public forums.

But they do have such great icons, like this one:
and this one:

Not to mention this one:

But my favorite:
And my sons favorite:

Quote:
Originally Posted by alloro View Post
Since you did quote him, I trust you read the part about the purpose of this switch is to shut off the fuel supply should the vehicle roll over? I would think that a "certified Automotive Tech with over 20 years professional experience and 3 years working at a dodge dealership", as well as those currently employed in a Dodge dealership part department, would know what a Fuel Cutoff Switch (a.k.a. Inertia Switch) is!

But I have yet to hear of an "inertia switch" on Mopar products. Thank for letting me know that they have them. (which I still cannot find a listing for them.) I know Ford Motor Company (aka FoMoCo) has been using IS for years, but have yet to have to replace one. I have had to reset a few in my time and have even triped them for testing. Also I have not seen them act intermitant. Either they work or they do not...

General Motors has been using a 3 pin oil pressure switch to kill the fuel pump. (useless triva, I know)

That is why I asked him if maybe he had a part number? Or maybe he was calling it by the wrong name?

I hope you have a great week! I am looking forward to one my self.

FL Bill
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Old 11-15-2011, 10:50 AM
 
 
 
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2001, 94, b350, couple, cummins, dakota, dies, dodge, driving, fuel, miles, pressure, pump, quit, quits, ram, restart, running, test, v8

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