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Re: dead dakota.........still [Re: rhad] #2693297
08/31/19 11:06 PM
08/31/19 11:06 PM
Joined: Aug 2003
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garnett kansas
rhad Offline OP
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i pulled out the CPS today i got from my local chrysler dealer 3 days ago,it tested bad!!,what the H is goin on ???,i did not test it before install,guess i should have?looked around and found one i had replaced a year or so ago,it tested ok,put it in went for a drive,everything ok!!,i also looked over the wiring at the back on the drivers side,some of the injector wires had some cracking in them,so i applied some liquid tape (ever hear of that?)i also changed the ecm back to a used one i had,im getting really gun shy about getting more than a block away from the shop!!!


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2693330
09/01/19 01:57 AM
09/01/19 01:57 AM
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Ca
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76440 Offline
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Originally Posted by rhad
,2 of the wires hook to the auto shutdown relay and the fuel pump relay,


Did you change this auto shutdown relay or swap it with another relay?

Re: dead dakota [Re: 76440] #2693547
09/01/19 11:04 PM
09/01/19 11:04 PM
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garnett kansas
rhad Offline OP
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ive changed relays at least twice!,drove fine today with the old CPS,im wondering if mopar had a bad batch of them?,they are from south of texas!!


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2694155
09/03/19 10:31 PM
09/03/19 10:31 PM
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Buford, GA
I_bleed_MOPAR Offline
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Hoping you had found something. Going to look at a '94 in the morning that has an "electrical" problem. blush



Tim


'71 Charger 383/727
'17 Challenger SXT (Wifeys car wink )
Re: dead dakota [Re: I_bleed_MOPAR] #2695398
09/08/19 10:16 AM
09/08/19 10:16 AM
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garnett kansas
rhad Offline OP
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i really thought it was fixed!!,started and ran good for a couple of days,then died this morning,i havent installed the newest cps yet,its time for someone else to look at this thing!!!
if the system is overcharging will that cause the CPS to go bad-burnout,etc???????????


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2695564
09/08/19 08:44 PM
09/08/19 08:44 PM
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Posts: 10,483
Freeport IL USA
poorboy Offline
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Every electrical component has a voltage range within which it can safely operate. The possibility exists that a voltage spike could damage any electrical component present on your Dakota, but I would have to suspect that with as many things as you have replaced, things like the battery would have been damaged had an electrical spike been involved. Then again, one never knows what the tolerance voltage level might be for each electrical component, nor how long, or high of voltage a damaging voltage spike may have been or lasted.
I'd check this one off as a pretty wild possibility, but then again, this whole deal falls into the wild possibility situation. I've owned several Dakotas and maybe its been my fortune not to have experienced all the trouble you have experienced. My apologies go out for all the trouble you have experienced with this Dakota. I have no words of wisdom to offer. Sorry. Gene

Re: dead dakota [Re: poorboy] #2695687
09/09/19 09:36 AM
09/09/19 09:36 AM
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ky.
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kenworth_goose Offline
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I believe it's time to sell it or do a V8 swap.

Re: dead dakota [Re: kenworth_goose] #2695881
09/09/19 05:37 PM
09/09/19 05:37 PM
Joined: Jul 2005
Posts: 727
Cleveland Ohio
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My dad had a 95 that would start sometimes, sometimes not. If it did it may die at any time. I dont know how he found it, but it ended up being a corroded wire on drivers side of truck. He cut out the bad area and spliced in a piece of wire and ran it over 200k. Never died again.

Re: dead dakota [Re: rhad] #2696297
09/10/19 08:24 PM
09/10/19 08:24 PM
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USA
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360view Offline
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Still sounds like the fuel pump cavitation problem I had, and others have had.
If it runs good when the weather is much colder that will be another clue.

Re: dead dakota [Re: 360view] #2696360
09/10/19 11:22 PM
09/10/19 11:22 PM
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garnett kansas
rhad Offline OP
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i put in a new mopar CPS today and took the truck to a shop thats said to be good at fixing things,checked the old CPS and sure enough it showed bad after 3 days???????,he said it might be 2 weeks,just about has to be a shorted wire or a corroded connection somewhere


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2696690
09/11/19 08:36 PM
09/11/19 08:36 PM
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Freeport IL USA
poorboy Offline
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Back to the wiring? At least you have an idea which circuit to follow if it keeps taking out the CPS. Think I would start at the last point anything else is on that circuit. Good luck. Gene

Re: dead dakota [Re: poorboy] #2696753
09/11/19 11:17 PM
09/11/19 11:17 PM
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garnett kansas
rhad Offline OP
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i talked to a long time mopar tech today,he suggested that the CPS might be touching the flexplate/flywheel causing a transfer of fine metal shavings causing a short?,also said to double check the dist under the cam sensor to see if the wheel on the main shaft was tight,and a slight possibility that the flexplate was cracked?,tho he said it would make a BIG racket,which its not!,so i might have to shim the CPS just a little bit ????


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2697018
09/12/19 09:27 PM
09/12/19 09:27 PM
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ky.
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kenworth_goose Offline
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Originally Posted by rhad
i talked to a long time mopar tech today,he suggested that the CPS might be touching the flexplate/flywheel causing a transfer of fine metal shavings causing a short?,also said to double check the dist under the cam sensor to see if the wheel on the main shaft was tight,and a slight possibility that the flexplate was cracked?,tho he said it would make a BIG racket,which its not!,so i might have to shim the CPS just a little bit ????


I've never had to shim one of them. There is plenty of room to pull it up a little bit.

Re: dead dakota [Re: kenworth_goose] #2697031
09/12/19 10:27 PM
09/12/19 10:27 PM
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garnett kansas
rhad Offline OP
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no adjustment on a 92 3.9,it just bolts to the back of the block with 2 bolts, look it up on rockauto for a picture,i made a 30 thou shim today out of some alum flashing,time will tell


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2701263
09/26/19 10:31 PM
09/26/19 10:31 PM
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garnett kansas
rhad Offline OP
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I TOOK IT TO A SHOP WITH A YOUNG SMART GUY,HE SAID HE DROVE IT 15 MILES AND IT DIED,AND HE COULDNT TALK TO the computer??,so it must not be the cps??,he still has it!!
sorry for the caps!


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2701336
09/27/19 09:29 AM
09/27/19 09:29 AM
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Buford, GA
I_bleed_MOPAR Offline
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How can he "talk" to the PCM with OBD1? work All the scan tool can do is read the code(s) on OBD1, right? No data stream or other info available? shruggy


Tim


'71 Charger 383/727
'17 Challenger SXT (Wifeys car wink )
Re: dead dakota [Re: I_bleed_MOPAR] #2701410
09/27/19 01:33 PM
09/27/19 01:33 PM
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ky.
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kenworth_goose Offline
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Originally Posted by I_bleed_MOPAR
How can he "talk" to the PCM with OBD1? work All the scan tool can do is read the code(s) on OBD1, right? No data stream or other info available? shruggy


Tim


Nope. You are limited as to what you can see but there will be some data available with obd1

Re: dead dakota [Re: kenworth_goose] #2701520
09/27/19 07:19 PM
09/27/19 07:19 PM
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Buford, GA
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up


Tim


'71 Charger 383/727
'17 Challenger SXT (Wifeys car wink )
Re: dead dakota [Re: I_bleed_MOPAR] #2701591
09/27/19 11:32 PM
09/27/19 11:32 PM
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garnett kansas
rhad Offline OP
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i m,ay have used the wrong wording,he said something like he couldn't get anything from the ecm,i dont remember the exact phrase,it just seems like if the ecm shows dead there must be a bad connection,corroded wire,or something overheated?,after it sets for a few minutes it will start and drive,it never shows a check engine light??


my ladder of success is missing some rungs
Re: dead dakota [Re: rhad] #2705727
10/10/19 10:27 PM
10/10/19 10:27 PM
Joined: Aug 2003
Posts: 954
garnett kansas
rhad Offline OP
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went to get it today,guy said he found a loose correded connector in the ecm plug,i drove it about 10 miles and it died!,waited a couple minutes and it restarted like always,took it back to him for more work?,after all this i dont now think its the crank sensor,the ones i took out tested ok when not testing them on a metal top bench!!!!


my ladder of success is missing some rungs
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