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94 dodge truck wont start
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Discretesignals
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May 21, 2012, 6:39 PM
Post #76 of 113
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Re: 94 dodge truck wont start
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Go to the fuel pump relay and check it the same way you just checked the ASD relay. PIN 86.
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r.foust
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May 21, 2012, 6:43 PM
Post #77 of 113
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Re: 94 dodge truck wont start
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fuel pump is the same way at pin 86 no power without jumper and when i hook jumper up then i have power jon
thanks Ron
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Discretesignals
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May 21, 2012, 6:46 PM
Post #78 of 113
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Re: 94 dodge truck wont start
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Last but least. The AC compressor clutch relay. The same 86.
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r.foust
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May 21, 2012, 6:54 PM
Post #79 of 113
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Re: 94 dodge truck wont start
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and it is the same as the other two jon without jumper no power and with jumper i have power
thanks Ron
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Discretesignals
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May 21, 2012, 7:08 PM
Post #80 of 113
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Re: 94 dodge truck wont start
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That means that the splice is good, unless the feed from firewall broke off it.
The next place to go is the firewall connector. It's not uncommon to have problems in the firewall connectors on these.
You'll probably have to seperate the two connectors from each other, so you can inspect the pins and terminals inside the firewall connector. There are a lot of wires in this connector. Sometimes ones that carry a lot of current will burn up the terminals and pins and melt the plastic around it.
Number 30 is where the light green/black wire passes through.
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r.foust
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May 21, 2012, 7:15 PM
Post #81 of 113
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Re: 94 dodge truck wont start
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jon on the fire wall connector which one do i need to inspect the side coming from fuse box or the side going threw then firewall i hope its the side comeing from fuse panel because i have had it pulled of bracket and the side coming threw firewall i cant se the backside of it to inspect it
thanks Ron
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r.foust
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May 21, 2012, 7:17 PM
Post #82 of 113
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Re: 94 dodge truck wont start
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i will go inspect this and let u know
seeing it is getting later for u i will let u go to bed jon
thanks Ron
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Discretesignals
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May 21, 2012, 7:21 PM
Post #83 of 113
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Re: 94 dodge truck wont start
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I honest don't remember how it comes apart. I think there is a bolt that you have to loosen, so you can separate the halves. I'm not sure if the bolt is on the outside or inside the cab. If dodge was nice it should be on the outside.
Yep, need my beauty sleep. LOL. Good luck and see ya later.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on May 21, 2012, 7:22 PM)
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r.foust
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May 21, 2012, 7:35 PM
Post #84 of 113
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Re: 94 dodge truck wont start
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well jon the bolt u r talking about is on the inside but easy to get to not much in the way like some vehecals
anyway i inspected the wire and tirmmunal and the seem do be in tack because with moving wire the pin will move inside as well
just to let u know i tried to get a volt reading from that pin with connector hooked up but i didnt get a volt reading from it jon because before i started talking to u that i went out after work and checked all the wires from 9-12 that ran down to the firewall connecter and i didnt get any volt reading from any of them jon. just thought i would let u know if this helps any. because like i said im not any good at electrical stuff
thanks again for ur help talk to u later
thanks Ron
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Tom Greenleaf
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May 21, 2012, 10:57 PM
Post #85 of 113
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Re: 94 dodge truck wont start
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No harm meant and won't lock thread but 75 now 85+ posts and going is reason to take this problem to a pro who can handle it!
Tom
(This post was edited by Tom Greenleaf on May 21, 2012, 10:59 PM)
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Discretesignals
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May 22, 2012, 4:29 PM
Post #86 of 113
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Re: 94 dodge truck wont start
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Don't worry Tom. If it takes a 1000 posts, so be it. I believe we are getting close to figuring out this part of the problem. I don't think the forum is going to blow up.
Ron, as you can see what your test results are determine which direction you take when diagnosing a problem. Ain't no thing and that is how you learn. Your doing fine.
Now you have no voltage at the fire wall connector on the fuse block side? You do have voltages at those fuses themselves with the ignition on, right?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on May 22, 2012, 4:33 PM)
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r.foust
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May 22, 2012, 4:51 PM
Post #88 of 113
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Re: 94 dodge truck wont start
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yes jon that is right no power at block but i cant really tell if im making good contact with plus when i insert the T pin into it so deeing i just got home i was going to go out and and check the block that comes through firewall and see if i have voltage their or not with or without jumper connected to pcm
thanks Ron
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Discretesignals
Ultimate Carjunky
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May 22, 2012, 4:53 PM
Post #89 of 113
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Re: 94 dodge truck wont start
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Hey, I doing the best I can with what I have. If you have any suggestions on how to resolve Ron's problem using 4 pages or less, let me know.
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Hammer Time
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May 22, 2012, 5:02 PM
Post #90 of 113
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Re: 94 dodge truck wont start
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Hell no, that would require reading all that.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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May 22, 2012, 5:08 PM
Post #91 of 113
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Re: 94 dodge truck wont start
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Let me summarize it for you.
Ron had no power to the crank sensor from the PCM
Ron has no ignition voltage to the PCM.
Ron is trying to isolate where the power is being lost
Ron is now looking for voltage at the bulkhead connector to determine if voltage is lost between the fuse panel and the bulkhead.
What should Ron do next?
Ron may have another problem other than ignition voltage to the PCM because Ron jumpered battery power directly to the PCM which powered up the PCM, coil sides of the ASD and fuel pump relay. Engine should of started, but it didn't.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on May 22, 2012, 5:11 PM)
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r.foust
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May 22, 2012, 5:12 PM
Post #92 of 113
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Re: 94 dodge truck wont start
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thank u jon
jon i check the plug with the black/green wire from fuse 9 and with the just the jumper wire hooked up to pcm i have power to the from the firewall sid and then i plug the inside back up and i have power coming through the block with the jumper wire connect bust as soon as i take jumper wire off i lose the power and when i trun the key on without jumper wire i have nothing
i hope i exsplained this well enough for you to understand what im trying to say back to u
thanks Ron
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Discretesignals
Ultimate Carjunky
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May 22, 2012, 5:15 PM
Post #93 of 113
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Re: 94 dodge truck wont start
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Ron, with the ignition off and the bulkhead connector connected, when you connect your jumper, do you have power to the fuses 9-12?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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r.foust
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May 22, 2012, 5:19 PM
Post #95 of 113
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Re: 94 dodge truck wont start
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yes i do jon
thanks Ron
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Discretesignals
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May 22, 2012, 5:23 PM
Post #96 of 113
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Re: 94 dodge truck wont start
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You have no power to your fuses if you turn the ignition on with the jumper removed?
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r.foust
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May 22, 2012, 5:31 PM
Post #97 of 113
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Re: 94 dodge truck wont start
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with jumper connected and the key off i have power just to the pin of the fuse which is where the green/black wire connects
with jumper disconnected and just the key on i have power to the bottom pin of fuse which is where the power from the switch is connected to the bus in this side. hope im making since to just trying to give enough info possible
thanks Ron
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Discretesignals
Ultimate Carjunky
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May 22, 2012, 5:38 PM
Post #98 of 113
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Re: 94 dodge truck wont start
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Check your fuse again. From what your typing the fuse is bad.
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r.foust
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May 22, 2012, 5:43 PM
Post #99 of 113
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yes the fuse was bad jon my bad never checked it and when i put new fuse in we are good all the way to pcm but it still wont start because i tried to start it after i put new fuse in because i have that high pitch wine with key on coming frompcm like before
thanks Ron
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Discretesignals
Ultimate Carjunky
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May 22, 2012, 5:54 PM
Post #100 of 113
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Re: 94 dodge truck wont start
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Ron that fuse blew out for a reason. The whining PCM isn't a good sign.
Do this with your ignition:
on-off-on-off-on
Then watch the check engine light. It should flash some codes. Write them down.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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