car dies.....help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

fuzzydice · 08-10-2011, 11:40 PM

i just put in my pbm coilovers into my s13 and suddenly my car/battery will die while driving. my brother had this problem on his s13 and we never found the cure... i rubbed into 2 wires in my front left fender due to me putting it to low but i fixed those and it hasnt changed.... i tested the load (12.9v while the car is off) (12.3v while running) i dont think it is the alternator because when this happend to my brother i swapped him alternators and it worked fine on my car but his car still had the same problem.... any advice as to where i should start would be great

Mountain_Man · 08-11-2011, 12:16 AM

if im not mistaken you should have more voltage when its running. it sounds like an alternator to me. but before you do that just check the alternator fuse.

fuzzydice · 08-11-2011, 02:53 AM

i did check it and its fine.. im just going to take it to a mech to find out what it is and ill just fix it

mxexux · 08-11-2011, 03:43 AM

Alternator should definitely be charging the battery at more than 12.3v. With the car on, the battery voltage should be ~13.5v. Take the alternator to your local autoparts store to check it for free. Or you can start checking the charging cables for high resistance. Also, another trick to checking the alternator: turn the car on and measure the battery under AC voltage on the DVM. If its higher than 0.5VAC then the regulator/rectifier on the alternator is bad.

REALIZE. · 08-11-2011, 04:13 AM

ever check if u have any exposed wires? sometimes they will ground together.

08-10-2011, 11:40 PM	#1
fuzzydice Join Date: Apr 2011 Location: BC Age: 31 Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	car dies.....help i just put in my pbm coilovers into my s13 and suddenly my car/battery will die while driving. my brother had this problem on his s13 and we never found the cure... i rubbed into 2 wires in my front left fender due to me putting it to low but i fixed those and it hasnt changed.... i tested the load (12.9v while the car is off) (12.3v while running) i dont think it is the alternator because when this happend to my brother i swapped him alternators and it worked fine on my car but his car still had the same problem.... any advice as to where i should start would be great

08-11-2011, 12:16 AM	#2
Mountain_Man Leaky Injector Join Date: Dec 2007 Location: Panama City, Fl Age: 35 Posts: 59 Trader Rating: (3) Feedback Score: 3 reviews	if im not mistaken you should have more voltage when its running. it sounds like an alternator to me. but before you do that just check the alternator fuse. __________________

08-11-2011, 02:53 AM	#3
fuzzydice Join Date: Apr 2011 Location: BC Age: 31 Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	i did check it and its fine.. im just going to take it to a mech to find out what it is and ill just fix it

08-11-2011, 03:43 AM	#4
mxexux Zilvia Junkie Join Date: Jun 2008 Location: SoCal 949 Posts: 363 Trader Rating: (9) Feedback Score: 9 reviews	Alternator should definitely be charging the battery at more than 12.3v. With the car on, the battery voltage should be ~13.5v. Take the alternator to your local autoparts store to check it for free. Or you can start checking the charging cables for high resistance. Also, another trick to checking the alternator: turn the car on and measure the battery under AC voltage on the DVM. If its higher than 0.5VAC then the regulator/rectifier on the alternator is bad.

08-11-2011, 04:13 AM	#5
REALIZE. Zilvia Member Join Date: Aug 2011 Location: Inland empire Posts: 153 Trader Rating: (3) Feedback Score: 3 reviews	ever check if u have any exposed wires? sometimes they will ground together.