Car dies in neutral.. Bad alternator?

[vpr131]

I know I've posted about this before, but a around a month ago I was driving around and when I put the car in neutral the rpm's fell down past idle all the way to 0, the battery light came on, and the car completely shut off when I was still going about 40mph. Since then, its done it a couple more times, but recently I was playing music and blasting the a/c and it was shutting off every couple minutes when I threw it in to neutral. At first, I thought there was a weak connection with the battery so I checked the wires and I changed both of the terminals but it is still dying even more often now. I'm thinking its the alternator but I just wanted to see what you all thought

 

[IBoughtASupra]

Have you checked the ISCV?

Get a meter and put it on the battery poles when the car is running to see the voltage you are getting. It should be 14-14.7 when it is healthy.

 

[IndigoMKII]

Is the car running any mods? Dying in neutral could be several more things than just a bad alternator..

 

[Nick M]

If his car stalled from a bad alternator, that means the battery had to discharge, and the car would not restart, let alone crank over.

 

[k20maniac]

do this, start the car and undo your positive terminal, if the car shuts off then your alternator isnt working.

 

[vpr131]

i did what k20 did and it dies after about a minute.. but in that time the afr was way low at around 10, and i now have white smoke out of the exhaust and my manifold is so hot its turning red and smoking too.. So potentially a bhg even though its a mhg and been retorqued among other things that are messed up.....

 

[hvyman]

That's not a good way to test the alternator. ..

 

[Maple191]

Is it a stock exhaust?

 

[jetjock]

What a sad thread. Then again it is Florida.

That's not a good way to test the alternator. ..

It is a good way to fry all of the electronics in the car though...

 

[IBoughtASupra]

I did ask him about ISCV. No response. :-/

 

[Turbo Habanero]

i did what k20 did and it dies after about a minute.. but in that time the afr was way low at around 10, and i now have white smoke out of the exhaust and my manifold is so hot its turning red and smoking too.. So potentially a bhg even though its a mhg and been retorqued among other things that are messed up.....

I've never seen a manifold or CT26 turbo glow red on a 7M. Although I've seen it on a 3S.

If it was happening at idle you have some issues for sure. Start by checking your coolant level and hooking your battery back up...

 

[Turbo Habanero]

As for the car dying. You can get your battery and alternater tested for free at autozone.


Check your grounds
Iscv
Cps
Tps

Are you thowing any codes if you don't know check.

 

[SideWinderGX]

Check your timing, your manifold shouldn't glow red at idle and I bet its off.

 

[IndigoMKII]

AFR's in the 10's and a glowing manifold? So much for richer engines running cooler..

 

[vpr131]

thanks for the help guys but I'm probably just going to sell/part out because I dont have the money to put in to it and I know someone else will.

 

[Turbo Habanero]

Lol well in that case I need a oil pressure sender on the block and the knock sensors

 

[AJ'S 88NA]

What a sad thread. Then again it is Florida.




QUOTE]

What's sup with Florida???

I live there...does that mean we can't be best buddies JJ...:cry:

 

[Maple191]

AFR's in the 10's and a glowing manifold? So much for richer engines running cooler..

The unburnt fuel from the low AFR is be ignighted in the exhaust. Or the exhaust is partail plug and cant breath at Idle. But can breath under load.

 

[jetjock]

AJ, since you live there you must know what I'm talking about but that doesn't mean there aren't exceptions. You'd be one of them :icon_bigg

 

[vpr131]

Jj you must be really bored that you have the time to come on here and make comments that are of no help. Thanks again for your input.