 car not starting after running ac for long times |
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 Aug 31, 2007 - 3:09 PM
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 Enthusiast  Joined Apr 10, '07 From lodi, ca Currently Offline Reputation: 9 (100%)  |
i live out in cali and it seems that if i take a drive while its really hot outside and have the ac going which works really well when i turn my car off it wont turn over the battery is totally dead. it happened to me 3 times this year and it sucks! any one know the cause of this or how to fix this? thx in advance
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Sep 2, 2007 - 7:17 PM
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 Enthusiast Joined May 5, '05 From New-Brunswick Canada Currently Offline Reputation: 3 (100%) |
sounds like you have a bad alternator or a crapped out battery that won't charge. or in rare case a combination of both.
If you have a volt meter, measure the voltage when the car is running w/o AC on and then with AC on. You should get 13.x to 14.x volts. If you get something lower than 12.5V, you might have a bad alternator and/or battery. -------------------- ----------------------6GC's FIRST V6----------------------
 JDM 96 MR2-T Faster - 94 Celica GT 3MZFE Funner - 99 Rav 4 AWD Handy |
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Sep 5, 2007 - 4:42 PM
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 Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
i should get 13.x volts at idle with the a/c on??
wow i seen mine as low as 10.5 idle w/ a/c and head lights on. usually at about 11.7 idle with the a/c on though. headlights are ALWAYS on. btw, i do have the HID lights.. i have a relatively new(~6months) spiracell yellowtop.. i think i have a bad alt.? i should get 13.x volts at idle with the a/c on?? wow i seen mine as low as 10.5 idle w/ a/c and head lights on. usually at about 11.7 idle with the a/c on though. headlights are ALWAYS on. btw, i do have the HID lights.. i have a relatively new(~6months) spiracell yellowtop.. i think i have a bad alt.? -------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
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Sep 5, 2007 - 9:41 PM
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Enthusiast Joined May 5, '05 From New-Brunswick Canada Currently Offline Reputation: 3 (100%) |
QUOTE(stephen_lee @ Sep 5, 2007 - 6:42 PM) [snapback]593659[/snapback] i should get 13.x volts at idle with the a/c on?? wow i seen mine as low as 10.5 idle w/ a/c and head lights on. usually at about 11.7 idle with the a/c on though. headlights are ALWAYS on. btw, i do have the HID lights.. i have a relatively new(~6months) spiracell yellowtop.. i think i have a bad alt.? i should get 13.x volts at idle with the a/c on?? wow i seen mine as low as 10.5 idle w/ a/c and head lights on. usually at about 11.7 idle with the a/c on though. headlights are ALWAYS on. btw, i do have the HID lights.. i have a relatively new(~6months) spiracell yellowtop.. i think i have a bad alt.? It really looks like your alternator is gone. You should get it checked soon. You may also have a defective battery or loose connections. -------------------- ----------------------6GC's FIRST V6----------------------
JDM 96 MR2-T Faster - 94 Celica GT 3MZFE Funner - 99 Rav 4 AWD Handy |
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Sep 5, 2007 - 9:56 PM
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 Enthusiast Joined Aug 23, '05 From Princeton, Minnesota Currently Offline Reputation: 7 (100%) |
take the alternator to the parts store and they can check it. then replace if needed
-------------------- -Brian
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Sep 6, 2007 - 7:01 PM
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
Well, my old battery was actually going deaf, like what the topic starter mentioned, so i got a new battery.. solved the dead problem, but still kinda low. anyway, i get 14.3 at about 2,500RPM though..
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
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Sep 6, 2007 - 7:47 PM
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Enthusiast Joined May 5, '05 From New-Brunswick Canada Currently Offline Reputation: 3 (100%) |
QUOTE(stephen_lee @ Sep 6, 2007 - 9:01 PM) [snapback]594026[/snapback] Well, my old battery was actually going deaf, like what the topic starter mentioned, so i got a new battery.. solved the dead problem, but still kinda low. anyway, i get 14.3 at about 2,500RPM though.. do you have a under drive pulley? -------------------- ----------------------6GC's FIRST V6----------------------
JDM 96 MR2-T Faster - 94 Celica GT 3MZFE Funner - 99 Rav 4 AWD Handy |
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Sep 6, 2007 - 10:08 PM
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
no i do not.. stock pully
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
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Sep 7, 2007 - 6:14 AM
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Enthusiast Joined May 5, '05 From New-Brunswick Canada Currently Offline Reputation: 3 (100%) |
I'd get the alternator machine tested, you should be getting much more than 10.5V at idle with AC and headlights. The ECU is suppose to up the idle to compensate for the extra load w/ AC + park lights on (idle up trigger on ECU).
-------------------- ----------------------6GC's FIRST V6----------------------
JDM 96 MR2-T Faster - 94 Celica GT 3MZFE Funner - 99 Rav 4 AWD Handy |
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Sep 7, 2007 - 6:59 AM
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 Enthusiast Joined Aug 18, '04 From Silverdale, WA Currently Offline Reputation: 0 (0%) |
It sounds to me that you need to get your alternator "Load" tested. If it can't handle a load at any engine speed then it is bad. Also the idle up when the AC is on is more for the ac compressor, so that it doesn't kill the engine.
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