I have a problem - Hemi Truck Club
 
Go Back   Hemi Truck Club > HEMI | Performance Zone > Engine | Modifications, Repairs and Performance

Like Tree16Likes
Reply
 
Thread Tools Display Modes
 
Old 10-02-2018, 04:13 PM   #1
Senior Member
 
chefred112's Avatar
 
Join Date: Jan 2007
Location: Tracy, CA
Posts: 4,307
Garage
I have a problem

Hey all...I have an issue that came up today...not sure when the symptoms started. Simply put, battery died out because alternator wasn't charging it, so it seems. I happen to be in the same parking lot as an autozone when my check gauges warning light came on and the gauge showing charging was all the way to the left. Had Autozone check battery, said it was good but needed charging, so I started truck and they said it wasn't getting any volts so we assumed alternator. Bought Alt and drove back to office where the battery totally ran out. Installed new alternator and had a fellow member come by and give it a jump. Started but the gauge didn't go all the way to middle and when I removed jumper cables the gauge went to the left again and drain out. Is there a voltage regulator on our trucks? thanks in advance fellas..

__________________
__________________________
-fast freddie- 392 hemi :)
http://www.dragtimes.com/Dodge-Ram-1500-Timeslip-23591.html?r=1"]2005 Dodge Ram 1500 SLT: 12.10 @ 113.96 MPH
chefred112 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-02-2018, 04:44 PM   #2
Mark G Senior Member
 
bada44's Avatar
 
Join Date: Jul 2006
Location: St Augustine FL
Posts: 1,631
Garage
As far as I know voltage is controlled in the PCM... But I may be wrong. this would be a good question for one of the true mechanics I'm sure one of them will chime in...
__________________
Every 2 minutes a new child is diagnosed with cancer & 1 in 5 children diagnosed with cancer will not survive!
Please Donate today!
https://www.stbaldricks.org
I stand for the flag!

Engine built by Go For Broke performance
[email protected]
bada44 is offline   Reply With Quote
Old 10-02-2018, 04:50 PM   #3
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,009
Garage
Seems my first post didn't make it. The pcm provides a field voltage to regulate the output voltage. I believe I have read there is a work around for installing a external regulator.
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-02-2018, 05:21 PM   #4
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,009
Garage
Here is a diagram.
Attached Images
File Type: jpg 20181002_191839.jpg (61.9 KB, 7 views)
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Old 10-02-2018, 07:53 PM   #5
2012 Truck of the Year
Engine Specialist
 
charged392's Avatar
 
Join Date: May 2011
Location: Fort pierce, FL
Posts: 17,238
Garage
The alternator is controlled by the pcm to duty cycle the alternators output. Make sure the battery is good it can also cause the pcm to not charge. The pcm will run about a 35-55% duty cycle to the alternator.

Make sure you have battery voltage at the big wire on the alternator itself. If you have voltage there then make sure you have power on pin 1 of the alternator plug brown and white wire. If you have power here then your good so far. The next part is testing for pcm control by which you need a logic probe or a power probe. You will want to probe the pin 2 wire truck running and look for a pulsed ground signal. A test light for this will not work as it will simply create a ground and show you nothing or fry the pcm completely. The logic probe or power probe will simply show you what the wire is doing. If you have nothing happening on this wire then make sure every single fuse is good in the fuse box and also make sure no wires got melted anywhere that you can see.
__________________
"CMR TUNER" [email protected] 1/4 with a 7.32 1/8 custom long/short bars by "Me" Turbocharged 392 on 9psi S475/96/1.32 . Running thru an A518! [email protected]
charged392 is offline   Reply With Quote
Old 10-03-2018, 08:31 AM   #6
Senior Member
 
chefred112's Avatar
 
Join Date: Jan 2007
Location: Tracy, CA
Posts: 4,307
Garage
Thanks for all the info and advice my friends, im bringing a freshly charged battery to work to bring her home. I think my 1st step is to install an external regulator for now and then check the advice in last post..
__________________
__________________________
-fast freddie- 392 hemi :)
http://www.dragtimes.com/Dodge-Ram-1500-Timeslip-23591.html?r=1"]2005 Dodge Ram 1500 SLT: 12.10 @ 113.96 MPH
chefred112 is offline   Reply With Quote
Old 10-03-2018, 10:36 AM   #7
Senior Member
 
chefred112's Avatar
 
Join Date: Jan 2007
Location: Tracy, CA
Posts: 4,307
Garage
I have another problem that seems to be coincidental. Does the issue in any way affect powersteering? I can start the truck (still has enough juice as I charged it a little bit) but when I go to re-park it the steering is totally manual and I have to move and muscle the wheel at the same time. Maybe it's just me but it seems the belt is moving slower than usual at idle...clutch fan not engaged so it seems slow.


https://youtu.be/R78-GdHW8so
__________________
__________________________
-fast freddie- 392 hemi :)
http://www.dragtimes.com/Dodge-Ram-1500-Timeslip-23591.html?r=1"]2005 Dodge Ram 1500 SLT: 12.10 @ 113.96 MPH
chefred112 is offline   Reply With Quote
Old 10-03-2018, 10:37 AM   #8
Senior Member
 
chefred112's Avatar
 
Join Date: Jan 2007
Location: Tracy, CA
Posts: 4,307
Garage
I was going to drive it home on the battery but at this point I think I'll just AAA it.
__________________
__________________________
-fast freddie- 392 hemi :)
http://www.dragtimes.com/Dodge-Ram-1500-Timeslip-23591.html?r=1"]2005 Dodge Ram 1500 SLT: 12.10 @ 113.96 MPH
chefred112 is offline   Reply With Quote
Old 10-03-2018, 10:50 AM   #9
Senior Member
 
chefred112's Avatar
 
Join Date: Jan 2007
Location: Tracy, CA
Posts: 4,307
Garage
could my power steering pump go bad? its just coincidence that is happening at the same time...
__________________
__________________________
-fast freddie- 392 hemi :)
http://www.dragtimes.com/Dodge-Ram-1500-Timeslip-23591.html?r=1"]2005 Dodge Ram 1500 SLT: 12.10 @ 113.96 MPH
chefred112 is offline   Reply With Quote
Old 10-03-2018, 10:55 AM   #10
Greg
 
Redtruck-VA's Avatar
 
Join Date: Jan 2011
Location: Virginia
Posts: 19,009
Garage
Sounds like something is dragging the belt slowing charging and pump down.
__________________
2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
Redtruck-VA is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Premium Vendor Showcase
n2 Speed Edge InTune Edge OCPerformance Parts

All times are GMT -6. The time now is 03:58 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.