Truck Not Charging Quick Diagnosis and Temp Fix | 1st Gen Cummins
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- เผยแพร่เมื่อ 6 ก.ย. 2024
- Today I show you how to do a quick diagnosis and fix for a no-charge situation in my 1st gen cummins. If your truck is not charging this is a TEMPORARY solution. This is also a good diagnosis tool to rule out a bad relay, as well as a bad alternator. If you jump the ASD relay like in this video and your truck still does not charge, chances are your alternator has gone out.
Stay tuned for more videos!
Tyler,
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Marine grade connectors: amzn.to/3q7lEFS
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Thank you sir
Sometimes it’s not even that the Crank Position Sensor is actually bad and needs replaced, sometimes it just gets rattled loose by the Cummins engine and needs to be readjusted to the right position and tightened back down will eliminate the failure to charge problem when it’s caused by the Crank Position Sensor so check for proper alignment before ordering the part
You should do a video on diagnosing the crank position sensor going bad and replacing it. For me this was the problem. I thought it was my PCM and did all the cap replacements, but it turned out to be a bad CPS. It presented similar to a bad PCM. It only happened in the winter and especially on damp days. My tach wouldn't work. Sometimes about 20 minutes into my drive the tach would start bouncing and becoming erratic. Charging would resume. I thought it was the PCM and replaced the caps but that didn't fix anything. My wait to start light always worked and the grid heater always worked. It took years because every spring when it warmed up the CPS would be fine all summer. I finally said it must be it and diagnosed it on a wet frigid day and sure enough the CPS was bad. I think the heat of the engine block would make it work again. Took forever to fix. I used the jumper lead for years in the winter.
Interesting. Yeah it's difficult to diagnose sometimes what could be a CPS problem versus a PCM problem. Glad you got yours fixed though!
Thank you, fixed my charging issue.
Cheers glad it helped!
Good one bro…
I had a boss who always kept a jump wire in his truck.
Doesn't hurt to have a boonie bucket...with some mechanics wire and some zip ties too!
Good evening Tyler. I replaced Crank Position Sensor (CPS) With a new plug & install part from NAPA. Not the most fun job to change out part but it is done and charging system is working as it should 👍. I will provide p/n later for those that my need same part. AC clutch not engaging still. Might be a simple fix of wires not connected. Will look later.
Glad to hear you got it working Eric! Ac is probably something minor
Hey Eric, did you ever find a fix for your ac clutch?
🎉🎉🎉❤❤❤. Great temporary ECM bypass.
Now, on to fix the capacitors!
Good luck!
I had a horrible time with batteries draining and charging issues. I installed a voltage regulator and found 2 bad grounds that were painted over by PO. A quick strike with the dremel fixed that
I have enjoyed and learned so much from your videos. Thank you for posting. I have a 93 with a gremlin inside. I have replaced the cps(oh fun). I sent off and have had the pcm rebuilt. I still don’t show a charge on my battery gauge and no speedo. Occasionally I will get a hiccup shifting(it’s an automatic).
Speedo isn't controlled by PCM, most likely a VSS issue and it needs replaced. Charging gremlin may be hard to fix. If my vids don't get you to a solution good luck with finding the issue!
@@OvensGarage VSS?
@@msoul3248 variable speed sensor. It takes the mechanical action turns it to an electronic signal and sends it to the gauge cluster.
Hi Tyler. An Update to my current "No charge" issue. I installed new remaned alternator. Same issue exists. I tried the jumper wire- still no charging. Next I will swap out PCM from my other 93 T/D Ram which has no issues...I will give feedback after doing the work with results..stay tuned.
I suspect it won't be the pcm but I will be surprised if it is!
@@OvensGarage my gut says I may have a bad ground or broken wire. I will ck PCM ground before swapping out part's.
@@OvensGarage code still comes up 42. Lack of power to relay or PCM
Another thing is the voltage regulator, the voltage regulator is definitely something that has caused my truck to not charge.. It was sucking out more power than it was supposed to be using. Sometimes this happens and it simulates your hraights are on when the truck isnt running, happens a lot.
Great hack, I saw you the FB group. Looking for the PCM rebuild video.
Great Tip ! One for the Sticky.
NAPA P/N for CPS Is
CSS1256.
Cheers!
Good information thank you
When I do this my truck tries to start itself when plugging 2nd paddle in
Mine did too my dumbass put the wire in the wrong block thing(idk the technical term)
I know i have a bad pcm, which i was avoiding fixing for now. I tried this, aswell as grounding the blue w yellow striped wire. And still no charge and my wait to start light stays on.
Seems like im going to have to dig at the pcm and follow your vid exactly
EDIT
I wired wired the wrong end of the blue wire to the ground (my stupidity) but its working now. Will update how it acts for a few days.
Yes if you ground out the ASD relay its a temp fix for the charging problem if your PCM is bad, but the good fix is to replace the caps in the PCM.
Great information!!!
Thanks!
Good video man
Cheers!
Hi Tyler. Latest update. I swapped out current PCM from Another truck that works in same yr & model as my issue truck. 1993 T/D Cummins auto. No change. Same issue exists. I haven't swapped out crank sensor yet. I Will do that next. Silver lining is I'm finding what's Not the problem little at a time..cheers
Very odd! Let me know if it's the CPS. I would have thought that wouldn't interfere with the charging but I guess it does tell the pcm the truck is running.
@@OvensGarage I will update you with each part change or check I perform. I wish I could send pictures to show you my truck and pictures, videos as I go thru this process.
@@ericfinch9642 you can always email me! My contact info is in the description
@@OvensGarage I will look
1990s don't have any of that stuff or atheist mine doesn't and hasn't been a problem for 6 months but I put a new alt and ne voltage reg because the truck died on the high way I cannot figure it out
Was it the fuel shutoff solenoid
Hmmm! 🤔 I don’t seem to have an asd relay
Me aswell
I just wanna say thanks for posting these types of videos for these dinosaurs. I have a 93’ and it’s currently not charging going to try swapping relays I have access to a few parts trucks. Guys that are into these trucks and don’t get pissed off and sell it the first time it shows it’s age. It’s hard to hold onto these trucks I have had some very patience testing endeavours with Mine over the 10 years I’ve owned it. I’m really thankful you take the time to post these videos to the select few of guys who appreciate and own one of these beautiful trucks everytime I see one in public I get more excited than a teenage for a lambo. Lol
Glad they help and happy when people like you take the time to comment. That's what I do it for! Thanks for watching.
@@OvensGarage much obliged, take care now.
I have a question I have. a 93 d250 and no matter what I do I can't get it to charge I've replaced alternator and even installed tranpo 8315 and jumped relay but can't get it to charge any ideas what I should do
It doesn't charge when you do this?
@@OvensGarage nothing
Same scenario here lmk if you figured it out
@@tinorocha591Same here. No charge when jumping the ASD relay either. We need a video that shows where all the grounds are located and how to test if it’s a ground problem. 😣
Yes exactly new alternator new voltage regulator even tried transpo one wire kit and nothing and also mine doesn’t have those relays you have
I just tried this to get me by until my pcm repair. No dice for me.
Sorry it didn't help!
@@OvensGarage I did jump the red to green on the relay and run it through a remote regulator for now. PCM repair tomorrow night.
@@WWRT88w good luck 👍
Now why would be the reason that relay even exists. Is there a scenario where you wouldn't want the alt charging when running the truck?
I thought the same thing... there's really no good reason in my mind. Maybe chrysler was just lazy and used the same provisions from the gasser trucks. The "automatic shutdown relay" doesn't exactly shutdown the truck when the ignition is off...so what's the point??? LOL
Curious as to how much you paid for your truck camper?
Wasn't listed online. For sale sign on the road was 1000 OBO! It's not perfect by any means but it's kept us dry!