Dont know whats wrong

SupraMKIV2jz-GTE · 08-17-2005, 05:39 PM

The other day i went to start my car and the battery was dead. So i jumped it and took it for a spin. It was idling really funny and it was making a skeaking noise. So when i took it for a spin, when i shifted gears the car felt like it was stumbling or wantig to stall. At a stopsign the car just cut out on me and stalled. I started it back up again and i found out that if i let off the gas the car would stall even if i was moving at 25 mph. So i limped the car home and the problem still persists. Does anyone have an idea of why the car would be doing this.

Makavelli · 08-17-2005, 09:06 PM

Alternator? Voltage Regulator? Bad battery connection? Try these first, as they are quite common problems, especially in older cars.

SupraMKIV2jz-GTE · 08-17-2005, 09:43 PM

I have checked the alternator output and it checks out ok and the battery connections dont have any visible problems. Im going to check the vaccum hoses and see if there is any leaks.

SupraMan1784 · 08-17-2005, 10:21 PM

that happened to me once with another car...try cleaning up the motor itself like the head and the cylinders...that did the trick for me...theres a lot of buildup in the motor and it causes some interference so it has to be cleared away once in a while

Poodles · 08-18-2005, 12:31 AM

It was making squeeling noise? That's your alternator belt slipping, or the bearings in the alternator going out, either one will kill a battery, and the car. Check the belt first, and then if it's not that, take the alternator off and have it tested...

SupraMan1784 · 08-18-2005, 02:23 AM

oh damn i dint read that there was a squealing noise...yea its the alternator....like poodles said its either the bearings or the belt...i think it sounds like hte belt

suprra_girl · 08-18-2005, 09:41 AM

if the check engine light is coming on when this happens (just before it stalls) you can do a diagnostic.. this may have a solution

how to... is in the faqs

SupraMKIV2jz-GTE · 08-18-2005, 01:31 PM

Thanks guys for the info im going to check on the alternator.

SupraMKIV2jz-GTE · 08-18-2005, 02:52 PM

Everytime my car makes that skeaking niose the needle on the tach moves when the car is idling. Does this further prove that it is the alternator. Someone on another forum said that it could be the coil packs. What do you think about that?

Poodles · 08-18-2005, 10:39 PM

which way does it move? Yeah, it could move if it's binding and bogging the engine down, or it's slipping so bad it's not supplying enough power to keep it running right. I really doubt it's the coil packs since it's squeeling, and the alternator is a far cheaper thing to replace first...

08-17-2005, 09:06 PM	#2
Makavelli 3" Exhaust Join Date: Jul 2005 Posts: 70	Alternator? Voltage Regulator? Bad battery connection? Try these first, as they are quite common problems, especially in older cars. __________________ <span style='font-size:14pt;line-height:100%'>Stock...for now</span>

08-17-2005, 10:21 PM	#4
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	that happened to me once with another car...try cleaning up the motor itself like the head and the cylinders...that did the trick for me...theres a lot of buildup in the motor and it causes some interference so it has to be cleared away once in a while __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

08-18-2005, 02:23 AM	#6
SupraMan1784 SP58GT Join Date: Jun 2005 Location: Dirty Jerz Posts: 691	oh damn i dint read that there was a squealing noise...yea its the alternator....like poodles said its either the bearings or the belt...i think it sounds like hte belt __________________ Now: Saving for an MKIV Broken Rides: (Sold) 91 supra turbo 5speed with a 1jzgte motor 421whp 400(399) ft*lbs of torque on tap @ 15 psi "Always outnumbered, never outgunned."

08-18-2005, 09:41 AM	#7
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	if the check engine light is coming on when this happens (just before it stalls) you can do a diagnostic.. this may have a solution how to... is in the faqs __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

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08-17-2005, 05:39 PM	#1
SupraMKIV2jz-GTE Stock Join Date: Jul 2005 Location: Westminster, Maryland Posts: 13	The other day i went to start my car and the battery was dead. So i jumped it and took it for a spin. It was idling really funny and it was making a skeaking noise. So when i took it for a spin, when i shifted gears the car felt like it was stumbling or wantig to stall. At a stopsign the car just cut out on me and stalled. I started it back up again and i found out that if i let off the gas the car would stall even if i was moving at 25 mph. So i limped the car home and the problem still persists. Does anyone have an idea of why the car would be doing this.

08-17-2005, 09:43 PM	#3
SupraMKIV2jz-GTE Stock Join Date: Jul 2005 Location: Westminster, Maryland Posts: 13	I have checked the alternator output and it checks out ok and the battery connections dont have any visible problems. Im going to check the vaccum hoses and see if there is any leaks.

08-18-2005, 12:31 AM	#5
Poodles 12psi boost Join Date: Jul 2005 Posts: 348	It was making squeeling noise? That's your alternator belt slipping, or the bearings in the alternator going out, either one will kill a battery, and the car. Check the belt first, and then if it's not that, take the alternator off and have it tested...

08-18-2005, 01:31 PM	#8
SupraMKIV2jz-GTE Stock Join Date: Jul 2005 Location: Westminster, Maryland Posts: 13	Thanks guys for the info im going to check on the alternator.

08-18-2005, 02:52 PM	#9
SupraMKIV2jz-GTE Stock Join Date: Jul 2005 Location: Westminster, Maryland Posts: 13	Everytime my car makes that skeaking niose the needle on the tach moves when the car is idling. Does this further prove that it is the alternator. Someone on another forum said that it could be the coil packs. What do you think about that?

08-18-2005, 10:39 PM	#10
Poodles 12psi boost Join Date: Jul 2005 Posts: 348	which way does it move? Yeah, it could move if it's binding and bogging the engine down, or it's slipping so bad it's not supplying enough power to keep it running right. I really doubt it's the coil packs since it's squeeling, and the alternator is a far cheaper thing to replace first...