Stereo tries to kill truck

[walker01s10 1]

Need some help and thoughts. When I crank my system and it starts hitting the low bass notes the engine idle falls and it almost kills the truck. It never did this with my old system. Here is a break down of the old system and the new sytem. I've asked around and no one seems to have an idea other than that the pg amps are power hungry.

Old system

JL 1000/1

2 JL 12W6

JL 300/4

200 amp alt

2 awg from batt to the fuse block and 4 awg to amps.

New setup

2 Pg ti600.2

2 JL 12W6

Ti 500.4

200 amp alt

Yellow top under hood all charging wires with 0 awg (big 3)

0 awg wire to a second batt in the truck (kinetik 1800) with 4 awg wire to amps.

My voltage doesn't seem to drop and I just had my alt freshened up. The only thing I can think of is the voltage regulator might be going bad which is my next thing to try since my regulator is external.

Any one have any thoughts. Thanks

Edited January 14, 2010 by walker01s10

[audiolife 14]

Need some help and thoughts. When I crank my system and it starts hitting the low bass notes the engine idle falls and it almost kills the truck. It never did this with my old system. Here is a break down of the old system and the new sytem. I've asked around and no one seems to have an idea other than that the pg amps are power hungry.

Old system

JL 1000/1

2 JL 12W6

JL 300/4

200 amp alt

2 awg from batt to the fuse block and 4 awg to amps.

New setup

2 Pg ti600.2

2 JL 12W6

Ti 500.4

200 amp alt

Yellow top under hood all charging wires with 0 awg (big 3)

0 awg wire to a second batt in the truck (kinetik 1800) with 4 awg wire to amps.

My voltage doesn't seem to drop and I just had my alt freshened up. The only thing I can think of is the voltage regulator might be going bad which is my next thing to try since my regulator is external.

Any one have any thoughts. Thanks

Check the wires, when I move things and switch them around sometimes I do not get everything as tight as I think I do. Especially if the grounds/connections are in the same place.

[shizzzon 461]

that's typical a sign the alt is pulling too much horsepower out of the vehicle and may also not be strong enough at idle.

because of this, i'd also start testing your batts and see if they are staying charged.

[walker01s10 1]

Just an update. I figured it out. The problem was that the alt brackets had shifted causing the belt to be to big and the belt tennsioner couldn't keep the belt tight so it would cause the belt to slip. I went back and made a new bracket that will never slip. Now the only thing that happens on low notes is that my idle will drop ever so slightly. But my lights do not dimm.

[jcarter1885 995]

Just an update. I figured it out. The problem was that the alt brackets had shifted causing the belt to be to big and the belt tennsioner couldn't keep the belt tight so it would cause the belt to slip. I went back and made a new bracket that will never slip. Now the only thing that happens on low notes is that my idle will drop ever so slightly. But my lights do not dimm.

I would try an add another ground wire, when I had more runs of ground wire (bigger ground wire then my power wires) it helped avoid idle droppage in my vehicle and if it did drop maybe .1volt. Hows everything coming along?