1992 B350 Van No spark, ignition module? - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
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#1 Old 06-25-2005, 09:31 AM
chuddy117
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1992 B350 Van No spark, ignition module?

Hey guys, i'm new to this site and HOPING someone can help me. I've got a 1992 Dodge B350 15-passenger van. I hit a HUGE bump in the road and the van just totally shut off. I took the coil wire off the distributor side and I found there is no spark. I replaced the coil but was told to try replacing the ignition module. The only problem is I can't find the thing! After searching this site, some people say it's built into the computer but when I went to the parts store they gave me that squareish box with a diamond shape connector. Any ideas?
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#2 Old 06-25-2005, 08:34 PM
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ignition module is built into computer. return part it will not work on your vehicle. check fuseable links on drivers side fender well and check connections on relays on left inside fender and connection at ecm aside of battery under fender. also check to see if ground on battery is connected. where are you located.

DIESEL POWER RULES. list of projects: 92 d250 86K.93 W250,360 Mag,24K. 92 W250 4X4 CUMMINS 76K. 92 W350 4X4 dually CUMMINS 100K. 4 RAMCHARGERS. 88 W350 4X4 dually dump. 73 CUDA 340-6pak. hope to get em all done before i die
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#3 Old 06-26-2005, 10:13 AM
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The parts store gave you the incorrect part. It is built into the computer....I suspect that it possible that the crank sensor decided to fail.

The crank sensor is located on the transmission bellhousing on the passenger side. You'll need to remove the engine box to get to it.

Nate Breece

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#4 Old 06-26-2005, 10:19 AM
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I am located in Duluth, Minnesota. Last night I had my Voltmeter and I tested the + and - on the coil. It read nothing, whether the engine was cranking or not. So now I know the coil isn't getting any signal. I have the doghouse off, however I can't seem to find that crank sensor you mentioned. I am seriously considering joining alldata so I can find out the location of all these components. It's only $25 a year for a vehicle, so I figure it'd be worth it. Anyway, on the right side of the engine bay is the A/C unit and the left side is the Battery. There is absolutely no room to work on this van! Does the crank sensor control spark or provide the coil with power? Like I said before, i'm getting no voltage at the coil while cranking. Thanks for your replies!
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#5 Old 06-26-2005, 10:36 AM
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You should get yourself a factory service manual for your van. It's a depth of knowledge.

Looking at the right side of the engine where the bellhousing meets the engine block, you'll see the crank sensor. It goes down through the bellhousing.

Nate Breece

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2008 Grand Caravan SXT
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#6 Old 06-26-2005, 10:37 AM
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Thanks! I will check it out today. You've been MORE then helpful
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#7 Old 06-26-2005, 10:43 AM
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Here's a scan out of my '94 Van service book. It should be identical to what you have.
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File Type: jpg cranksens.jpg (540.7 KB, 27 views)

Nate Breece

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2008 Grand Caravan SXT
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#8 Old 06-26-2005, 02:07 PM
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Hi, thank you very much for the scan. Unfortunately, I ran back home to look for the crank sensor and there isn't one! I see the spot your talking about, however there is just a rubber plug over it. Now i'm REALLY confused! I also went to NAPA and took a look at the crank sensor, there definitely isn't one on this engine. I'm 99% sure this is the factory original engine, too.
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#9 Old 06-27-2005, 06:02 AM
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What engine do you have?

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2008 Grand Caravan SXT
3.8L




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#10 Old 06-27-2005, 08:32 AM
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engine is a 360 TBI i bet with a bad ASD relay

DIESEL POWER RULES. list of projects: 92 d250 86K.93 W250,360 Mag,24K. 92 W250 4X4 CUMMINS 76K. 92 W350 4X4 dually CUMMINS 100K. 4 RAMCHARGERS. 88 W350 4X4 dually dump. 73 CUDA 340-6pak. hope to get em all done before i die
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#11 Old 06-27-2005, 11:02 AM
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Ahhh okay....No Magnum 360 until 1993. That would explain the no crank sensor thing.

Yes it's possible that the ASD relay decide to crap out. Are you getting fuel? In other words are the fuel injectors pulsing? If they are then the ASD relay is probably okay.

Another possibility would be the pickup module inside the distributor.

Nate Breece

1994 B250 Ram Van Conversion by Elk
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2008 Grand Caravan SXT
3.8L




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#12 Old 06-27-2005, 12:32 PM
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This van has the 360 engine in it. You know, now that you mention it, I cranked it the other day and looked into the TBI, I didn't see any fuel coming out of the injectors. I wasn't sure if the gas stream was too fine for me to see or what, but I definitely did not see any fuel. What/where is the ASD relay? I've never heard of that before. So should I definitely go ahead and return that ignition module I got? Thanks for all the help guys, you've been a godsend
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#13 Old 06-27-2005, 01:09 PM
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3 things could be wrong 1) fuel pump failed 2) fuel pump relay 3) ASD relay. sorry i dont know where they are located on a van but i believe there is another post with similar problem. if it is your fuel pump( located in tank with sending unit) just replace the pump and not the whole sending unit. turn your key on and off 3 times real fast and read how many times the check engine flashes. flash flash pause flash would be code 21. post results when done.

DIESEL POWER RULES. list of projects: 92 d250 86K.93 W250,360 Mag,24K. 92 W250 4X4 CUMMINS 76K. 92 W350 4X4 dually CUMMINS 100K. 4 RAMCHARGERS. 88 W350 4X4 dually dump. 73 CUDA 340-6pak. hope to get em all done before i die
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#14 Old 06-27-2005, 02:23 PM
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My only thought is that, even IF the fuel pump or relay were shot, that wouldn't explain the lack of spark. From what I understand, the ASD relay WOULD account for the lack of spark AND fuel, correct? I don't know a lot about Dodges, as i'm sure you can tell
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#15 Old 06-27-2005, 03:10 PM
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ASD and fuel pump are 2 different relays. bad ASD relay= no spark. bad fuel pump relay=no fuel. could be bad pickup in distributor. did you check the codes yet. it will help us to help you.

DIESEL POWER RULES. list of projects: 92 d250 86K.93 W250,360 Mag,24K. 92 W250 4X4 CUMMINS 76K. 92 W350 4X4 dually CUMMINS 100K. 4 RAMCHARGERS. 88 W350 4X4 dually dump. 73 CUDA 340-6pak. hope to get em all done before i die
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#16 Old 06-27-2005, 03:13 PM
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I will check the codes as soon as I get home, however i'm not totally sure if the check engine light even works anymore. Looking into the distributor, there is a black plastic piece in the bottom. It is cracked in a few places, would this account for something?
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#17 Old 06-27-2005, 03:27 PM
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Here's a scan showing exactly where the ASD relay is and what it does. The scan is from a 1990 manual, but yours should be identical.
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File Type: jpg asd90.jpg (418.4 KB, 35 views)

Nate Breece

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2008 Grand Caravan SXT
3.8L




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#18 Old 06-27-2005, 03:29 PM
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Quote:
Originally Posted by chuddy117
I will check the codes as soon as I get home, however i'm not totally sure if the check engine light even works anymore. Looking into the distributor, there is a black plastic piece in the bottom. It is cracked in a few places, would this account for something?


Well, it's certainly a starting point. Does it look something like this?
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File Type: jpg LX127.jpg (15.7 KB, 91 views)

Nate Breece

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2008 Grand Caravan SXT
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#19 Old 06-27-2005, 04:46 PM
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if that has cracks in it change it now. it is probably original and could be part of the problem.

DIESEL POWER RULES. list of projects: 92 d250 86K.93 W250,360 Mag,24K. 92 W250 4X4 CUMMINS 76K. 92 W350 4X4 dually CUMMINS 100K. 4 RAMCHARGERS. 88 W350 4X4 dually dump. 73 CUDA 340-6pak. hope to get em all done before i die
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#20 Old 06-27-2005, 05:30 PM
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Yep, that is definitely the unit. I'm going to pick up the ASD relay tonight and tomorrow order the pickup coil.
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