truck issues

new-colorado · 06-22-2012, 01:04 AM

so ive been hunting around for issue resolution and havent found any yet. when my rpm drops below 1000 when i let of the gas my heaters powers down, my subs crackle and pop with music on, my headlights will dim aswell. has anyone had this issue and found a resolution? any help will be appreciated. plus new k and n air filter is solid on the 05 3.5 litre!

442_mike · 06-22-2012, 04:52 PM

Low voltage? Bad/weak alternator? I don't understand the phrase "heaters power down", you mean your blower fan slows down? Yeah, I'd check voltage, first!

new-colorado · 06-22-2012, 06:25 PM

sorry by power down i mean it seems like the fan speed drops from 3 setting to 1 setting and then back up to 3 when i press on the gas. my battery and alternator checked out fine and my buddy with the same truck changed his alternator thinking that was the issue because he is having the same problem with his truck but that hasnt fixed the problem for him yet either

hmmbagodden · 06-22-2012, 07:46 PM

What else do you have running? Sounds like the power draw for your truck is too high & the battery/alternator can't keep up?

Tweek · 06-22-2012, 07:47 PM

Sounds like it idels so low that it can not produce enough juice to power all that electrical stuff running at the same time...All that would be a pretty good draw on the system....Good luck with the fix !!

08Canyon · 06-22-2012, 08:55 PM

I would agree with tweek until I realized you say it's a problem under 1000rpm, when idle is 650. Alternator probably not producing enough power.

Head over to your local auto parts store and have the load test your battery. They can determine the status of the battery conditioning. Otherwise, they can possibly check the alternator output on the vehicle to be sure it's producing enough power to properly charge the battery.

new-colorado · 06-22-2012, 11:18 PM

the problem originally started a year ago but wasnt to worried about it until subs were installed and then i could hear the crackling. ill check the alternator tomorrow but im not sure if that. my buddy changed his alternator when he had this problem and the problem still persists with him. my truck is stock other than the subs right now

retired2001 · 06-22-2012, 11:33 PM

Sounds like a "bad" ground, but above sugestion to have parts store check the battery sounds good.

08Canyon · 06-22-2012, 11:49 PM

What size amp are you running? Maybe you can't provide enough power to the amps with your stock charging system?

What other symptoms do you have. I doubt that "crackling subs" is really something you can push back on the charging system. With everything else you have going on though, it's definitely a charging issue, you're drawing power more quickly than you can produce it.

new-colorado · 06-23-2012, 01:31 PM

what do you mean by check the battery? just the voltage across it or the amps? i have a meter at my house that could check that stuff. its a 800 w amp but the issue was going on before the amp and sub install. and ya just my rpm drops below 500 now and everything just seems to power down or the headlights dim. ive heard a few people talk about bad grounds and thats an endless hunt for that issue i feel haha

06-22-2012, 01:04 AM	#1 (permalink)
new-colorado Member Join Date: Jul 2010 Posts: 70	truck issues so ive been hunting around for issue resolution and havent found any yet. when my rpm drops below 1000 when i let of the gas my heaters powers down, my subs crackle and pop with music on, my headlights will dim aswell. has anyone had this issue and found a resolution? any help will be appreciated. plus new k and n air filter is solid on the 05 3.5 litre!

06-22-2012, 07:46 PM	#4 (permalink)
hmmbagodden Senior Member Join Date: Apr 2007 Location: Anchorage, AK Posts: 493	What else do you have running? Sounds like the power draw for your truck is too high & the battery/alternator can't keep up? __________________ '06 Z-71 Crew Cab -- Sold. '12 5.3 LT2 - Wicked.

06-22-2012, 07:47 PM	#5 (permalink)
Tweek Senior Member Join Date: May 2011 Location: Crossville,TN Posts: 564	Sounds like it idels so low that it can not produce enough juice to power all that electrical stuff running at the same time...All that would be a pretty good draw on the system....Good luck with the fix !! __________________ SPIDEY 2005-Z85-4x4 REG.Cab 2.8 I-4 5-Speed Victory Red

06-22-2012, 11:33 PM	#8 (permalink)
retired2001 Senior Member Join Date: Nov 2011 Location: Canyon Lake, Texas Posts: 498	Sounds like a "bad" ground, but above sugestion to have parts store check the battery sounds good. __________________ *" retired2001 "* *2010 Colorado LT* *Crew Cab Z/71* *5.3 V8 W/4:10 Gears* *2007 Winnebago* *" Adventuter " 39'* *8.1 V8 / 6 Speed Allison*

06-22-2012, 04:52 PM	#2 (permalink)
442_mike Senior Member Join Date: Sep 2011 Location: Washington, DC Posts: 282	Low voltage? Bad/weak alternator? I don't understand the phrase "heaters power down", you mean your blower fan slows down? Yeah, I'd check voltage, first!

06-22-2012, 06:25 PM	#3 (permalink)
new-colorado Member Join Date: Jul 2010 Posts: 70	sorry by power down i mean it seems like the fan speed drops from 3 setting to 1 setting and then back up to 3 when i press on the gas. my battery and alternator checked out fine and my buddy with the same truck changed his alternator thinking that was the issue because he is having the same problem with his truck but that hasnt fixed the problem for him yet either

06-22-2012, 08:55 PM	#6 (permalink)
08Canyon Senior Member Join Date: Oct 2011 Posts: 2,913	I would agree with tweek until I realized you say it's a problem under 1000rpm, when idle is 650. Alternator probably not producing enough power. Head over to your local auto parts store and have the load test your battery. They can determine the status of the battery conditioning. Otherwise, they can possibly check the alternator output on the vehicle to be sure it's producing enough power to properly charge the battery.

06-22-2012, 11:18 PM	#7 (permalink)
new-colorado Member Join Date: Jul 2010 Posts: 70	the problem originally started a year ago but wasnt to worried about it until subs were installed and then i could hear the crackling. ill check the alternator tomorrow but im not sure if that. my buddy changed his alternator when he had this problem and the problem still persists with him. my truck is stock other than the subs right now

06-22-2012, 11:49 PM	#9 (permalink)
08Canyon Senior Member Join Date: Oct 2011 Posts: 2,913	What size amp are you running? Maybe you can't provide enough power to the amps with your stock charging system? What other symptoms do you have. I doubt that "crackling subs" is really something you can push back on the charging system. With everything else you have going on though, it's definitely a charging issue, you're drawing power more quickly than you can produce it.

06-23-2012, 01:31 PM	#10 (permalink)
new-colorado Member Join Date: Jul 2010 Posts: 70	what do you mean by check the battery? just the voltage across it or the amps? i have a meter at my house that could check that stuff. its a 800 w amp but the issue was going on before the amp and sub install. and ya just my rpm drops below 500 now and everything just seems to power down or the headlights dim. ive heard a few people talk about bad grounds and thats an endless hunt for that issue i feel haha

Remove Advertisements Sponsored Links
ColoradoFans.com Advertisement