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94 dodge truck wont start
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r.foust
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May 22, 2012, 5:56 PM
Post #101 of 113
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Re: 94 dodge truck wont start
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jon i went back out and messed with black/ green wire on pin at pcm its not keeping contact because when i move it around i hear clicking and i went ahead and checked the 7 pin and 6 pin on connecter and as long as i keep the 9 pin making contact i have 8 volts to pin 7 and 6 volts to pin 6 but i still have the high pitch noise coming from pcm with pin 9 making contact. so do i need to have pcm sent back out and have it recheck u think.
thanks Ron
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r.foust
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May 22, 2012, 6:02 PM
Post #102 of 113
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Re: 94 dodge truck wont start
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i have an obd 1&2 scan tool can i use it instead of counting flashes and trying to write at the same time jon lol
thanks Ron
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Discretesignals
Ultimate Carjunky
/ Moderator
May 22, 2012, 6:05 PM
Post #103 of 113
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Re: 94 dodge truck wont start
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You need to check your connection and make sure that terminal is tight for pin 9. Also inspect the wire for pin #9 at the connector to be sure it doesn't have broken strands inside the insulation.
If you can keep the computer on, do both checks using your code reader and the key method.
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, 6:09 PM
Post #104 of 113
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Re: 94 dodge truck wont start
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ok is their a way to remove pin 9 from the connection block
thanks Ron
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Discretesignals
Ultimate Carjunky
/ Moderator
May 22, 2012, 6:18 PM
Post #105 of 113
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Re: 94 dodge truck wont start
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There is a way. I don't know how that connector is configured, but it should have some type of retaining device that you have to remove. Then you need to unlock the terminal from the connector using a small pick or even a special terminal tool.
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, 6:19 PM)
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r.foust
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May 22, 2012, 6:50 PM
Post #106 of 113
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Re: 94 dodge truck wont start
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ok jon we got pin 9 to keep contact and with the codes i got from off the dash is , 12, 42,37,55 from count5ing the flashes
and from my scan tool i got 42 and 45 and that is it from the scan tool
which i already know 45 is for the temp sensor on transmition and the reason it comes up is because someone before me took the sensor out of the line i beleive
thanks Ron
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Discretesignals
Ultimate Carjunky
/ Moderator
May 22, 2012, 6:59 PM
Post #107 of 113
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Re: 94 dodge truck wont start
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Code 42 has to do with the ASD relay circuit being open or shorted. Is the ASD relay plugged in? If not, plug it back in and clear your codes out. Then recheck to see if that code comes back.
Code 45 is the overdrive solenoid circuit for the transmission shorted or open. That may be what took out fuse #9.
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, 7:02 PM)
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r.foust
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May 22, 2012, 7:25 PM
Post #108 of 113
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Re: 94 dodge truck wont start
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ok new reading from dash is ,12,37,55
from scanner is, 45
thems the only codes i am getting
but i still have whining from pcm
thanks Ron
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Discretesignals
Ultimate Carjunky
/ Moderator
May 22, 2012, 7:51 PM
Post #109 of 113
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Re: 94 dodge truck wont start
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37 is the transmission temperature sensor open or shorted.
Check for spark and injector pulse while cranking now that you have your PCM powered back up.
If you have no spark or injector pulse, your going to have to check for a crank and cam signals. Check the crank sensor like you were doing in the beginning of this thread.
Just want to make sure that you have a crank and cam sensor signal to the computer. If you do, then it is concluded the PCM is the culprit.
Gotta get some rest. 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 22, 2012, 7:52 PM)
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r.foust
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May 22, 2012, 8:12 PM
Post #110 of 113
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Re: 94 dodge truck wont start
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jon seeing it was dark outside i checked to see if i had pulse at the injector in which i didnt jon.
so when i get home from work i will check my voltage at the crank sensor and at cam sensor
my question is should i do this with them still pluged in or with them unplugged jon
thanks Ron
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
May 23, 2012, 3:15 AM
Post #111 of 113
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Re: 94 dodge truck wont start
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110 posts!! A site record. Time to finish this and DS will always have my support,
Tom
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Discretesignals
Ultimate Carjunky
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May 23, 2012, 4:58 AM
Post #112 of 113
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Re: 94 dodge truck wont start
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You want to make your voltage measurements with the sensors plugged in. T pin the connector. Don't use more than one T pin though because you don't want them touching. Check each terminal one at a time. Just like in the beginning of this thread.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Tom Greenleaf
Ultimate Carjunky
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May 23, 2012, 5:36 AM
Post #113 of 113
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Re: 94 dodge truck wont start
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Time for some "T" pins. They don't cost crap - hair salon or places that supply the hair biz or any dept. store TMK,
Tom
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