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Author
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Topic: Car dies when coming to a stop,...what could it be?
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JdubO7
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Member # 1973
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posted
 
 
The car will die only when the ac or heater is on while coming to a stop? At night the headlights are a little dim at a stop and when I rev a little they will light up more. Could this be a week altenator? Are there "beefier" altenators I can buy to stop this?
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Dynomax Mufflers/Headers/Pullies
65mm TB/76mm MAF System w/K&N
Hurst Short Shift/MSD Ignition
Electric Fan/3 Core Radiator
Ford 3.55's
Waiting in living room for install:
King Cobra Cluth
Looking for deals on:
Pony Rims w/tires
130 - 200 amp alt.
Posts: 65 | From: CA | Registered: Oct 2002
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99gt-UJSTLST
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Member # 584
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posted
what year car is it couse I now older 5.0 cars have that problem when you change pullies
it sounds like the alternator is spining to slow
I see you have put pullies on your car that could be the start of the problem
you could put back the stock alternator pully that should help, or you an buy a more power full alternator
[ October 22, 2002, 08:42 AM: Message edited by: 99gt-UJSTLST ]
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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JdubO7
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Member # 1973
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posted
Sorry should have provided better info. 89 lx 5.0 I don't even have the old pullies and would rather go for a more powerful alt. How will I know what type of altenator to get?? I thought they were made for specific models
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Dynomax Mufflers/Headers/Pullies
65mm TB/76mm MAF System w/K&N
Hurst Short Shift/MSD Ignition
Electric Fan/3 Core Radiator
Ford 3.55's
Waiting in living room for install:
King Cobra Cluth
Looking for deals on:
Pony Rims w/tires
130 - 200 amp alt.
Posts: 65 | From: CA | Registered: Oct 2002
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99gt-UJSTLST
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Member # 584
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posted
im not sure where you can buy a better alternator but I now if you check a 5.0 mag their should be add with some one selling better alternators
or ask around on this site im sure a few guys have upgraded their alternator on hear
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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Wildfire532FB
CAFords OG
Member # 1482
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posted
i heard you can use the 94-95 alternators which are 130amp but you need to do some mods. i have a 160amp but its only at high RPM and kinda sucks for me cause i need one for low rpm.
[ October 22, 2002, 02:13 PM: Message edited by: Cobra-Jeep ]
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68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid
Posts: 17580 | From: 530 | Registered: Jun 2002
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chosen1
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Member # 1906
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posted
on your amp meter on your dash, does it register a charge similar to what it did before you changed the pulleys. changing one pulley, ie the one on the alternator, is not the way to go. get a bigger 130 amp alternator -doesnt matter what its out of as long as it fits or make it fit. an alternator is an alternator -all it does is charge, so re-wiring should not be that challenging
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1967 Fastback. Should go 10's -but doesn't
1993 Cobra
2003 Suzuki SVS
1966 Coupe -For Sale
Posts: 2205 | Registered: Sep 2002
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Hungry Hippo
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Member # 537
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posted
sounds like your idle is too low to me. try cleaning the IAB valve or turning the set screw on it counter-clockwise
Posts: 2959 | From: east bay | Registered: Nov 2001
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JdubO7
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Member # 1973
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posted
Thanks for the info. I found a new Ford alternator 100 amp for $105 one year warrenty. Regarding the pullies...they were on the car when I bought it there is also an electric fan with adj. thermostat. It wouldn't die when coming to a stop UNTIL I put on the 76mm MAF and used the heater or ac. So we'll see what happends with the 100 amp.
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Dynomax Mufflers/Headers/Pullies
65mm TB/76mm MAF System w/K&N
Hurst Short Shift/MSD Ignition
Electric Fan/3 Core Radiator
Ford 3.55's
Waiting in living room for install:
King Cobra Cluth
Looking for deals on:
Pony Rims w/tires
130 - 200 amp alt.
Posts: 65 | From: CA | Registered: Oct 2002
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99gt-UJSTLST
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Member # 584
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posted
hmmm if you changed the MAF and thats when the problems started then i would swap out the MAF and see if it goes away you might have a bad MAF
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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JdubO7
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Member # 1973
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posted
quote:
Originally posted by 99gt-UJSTLST:
hmmm if you changed the MAF and thats when the problems started then i would swap out the MAF and see if it goes away you might have a bad MAF
Thanks for the suggestion. I tried that out last night. Put the stock shit back on and drove around a while and was fine. Then turned on the heater full blast came to a stop....died. Tried the same thing with ac on...died. I wonder if maybe even the electric fan is set to come on to often thus causing the alternator to have a hard time keeping up with the power supply needed.
--------------------
Dynomax Mufflers/Headers/Pullies
65mm TB/76mm MAF System w/K&N
Hurst Short Shift/MSD Ignition
Electric Fan/3 Core Radiator
Ford 3.55's
Waiting in living room for install:
King Cobra Cluth
Looking for deals on:
Pony Rims w/tires
130 - 200 amp alt.
Posts: 65 | From: CA | Registered: Oct 2002
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