Engine noise

makaveli956 · 31st May 2007, 12:56 AM

I have a Lanzar 4000 watt 2 channel amp and i am getting engine noise through my speakers does anybody know what can be causing this problem please help

BWRX · 31st May 2007, 01:18 AM

Noise from your alternator is being coupled into your signal wires. Do you have the input wiring running right next to the power wire? Is the amp's ground connection electrically and mechanically solid?

audiobahnkid592 · 31st May 2007, 01:41 AM

As stated above make sure you RCA's are NOT near the power wire also good, solid grounds are a must.

I Am An Idiot · 31st May 2007, 01:46 AM

Pioneer Radio?

makaveli956 · 31st May 2007, 05:18 AM

yes i have an pioneer head unit

I Am An Idiot · 31st May 2007, 06:13 AM

If your engine noise is very loud, chances are the problem is the shield of your RCA cables have lost their ground refference.

To make sure this is your problem we need to remove our radio from the dash so we can get to the RCA cable that goes to the amp. Then we need to take a length of small wire a couple feet long, we need to ground one end of the wire and with the engine running and noise present, touch the other end of the wire to the outer part of your RCA cable. The shiny part you can still see when the cable is plugged into the deck. This should make a little pop and the noise should go away.

If this gets rid of the noise let me know and we can help you get it repaired.

makaveli956 · 31st May 2007, 07:29 AM

Quote:

Originally posted by I Am An Idiot
If your engine noise is very loud, chances are the problem is the shield of your RCA cables have lost their ground refference.

To make sure this is your problem we need to remove our radio from the dash so we can get to the RCA cable that goes to the amp. Then we need to take a length of small wire a couple feet long, we need to ground one end of the wire and with the engine running and noise present, touch the other end of the wire to the outer part of your RCA cable. The shiny part you can still see when the cable is plugged into the deck. This should make a little pop and the noise should go away.

If this gets rid of the noise let me know and we can help you get it repaired.

tried it and the noise is still there i even tried different rca's my ground wire is an 8 gauge

zzzzzzz · 31st May 2007, 02:35 PM

your ground is bad some where in the car and have you done the big 3 yet ?

makaveli956 · 31st May 2007, 03:22 PM

Quote:

Originally posted by zzzzzzz
your ground is bad some where in the car and have you done the big 3 yet ?

whats the big 3

y8s · 31st May 2007, 07:33 PM

do you get the noise with just one RCA connected?

31st May 2007, 12:56 AM	#1
makaveli956 diyAudio Member Join Date: Mar 2007	Engine noise I have a Lanzar 4000 watt 2 channel amp and i am getting engine noise through my speakers does anybody know what can be causing this problem please help

31st May 2007, 01:18 AM	#2
BWRX diyAudio Moderator Emeritus Join Date: Jan 2005 Location: Pennsylvania	Noise from your alternator is being coupled into your signal wires. Do you have the input wiring running right next to the power wire? Is the amp's ground connection electrically and mechanically solid? __________________ Brian

31st May 2007, 01:46 AM	#4
I Am An Idiot diyAudio Member Join Date: Mar 2007	Pioneer Radio? __________________ If it ain't broke Don't fix it

31st May 2007, 06:13 AM	#6
I Am An Idiot diyAudio Member Join Date: Mar 2007	If your engine noise is very loud, chances are the problem is the shield of your RCA cables have lost their ground refference. To make sure this is your problem we need to remove our radio from the dash so we can get to the RCA cable that goes to the amp. Then we need to take a length of small wire a couple feet long, we need to ground one end of the wire and with the engine running and noise present, touch the other end of the wire to the outer part of your RCA cable. The shiny part you can still see when the cable is plugged into the deck. This should make a little pop and the noise should go away. If this gets rid of the noise let me know and we can help you get it repaired. __________________ If it ain't broke Don't fix it

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

31st May 2007, 01:41 AM	#3
audiobahnkid592 diyAudio Member Join Date: Mar 2007	As stated above make sure you RCA's are NOT near the power wire also good, solid grounds are a must.

31st May 2007, 05:18 AM	#5
makaveli956 diyAudio Member Join Date: Mar 2007	yes i have an pioneer head unit

31st May 2007, 02:35 PM	#8
zzzzzzz diyAudio Member Join Date: Apr 2007	your ground is bad some where in the car and have you done the big 3 yet ?

31st May 2007, 07:33 PM	#10
y8s diyAudio Member Join Date: May 2006	do you get the noise with just one RCA connected?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
engine noise - bad amp??	Dan2	Car Audio	43	5th November 2008 10:26 AM
engine noise problem, HELP!!!!	TheStape	Car Audio	2	14th November 2007 05:29 AM
Engine noise (tried almost everything) please help!	wally91chevrole	Car Audio	34	26th February 2006 06:41 AM
engine noise HELP!	st33lownz	Car Audio	6	4th November 2004 07:35 PM
noise in right speaker when engine on	crazyinjun	Car Audio	13	7th May 2004 12:34 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read