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Old 01-30-2013, 03:39 PM   #1
4Cornered
Scooby Newbie
 
Member#: 229028
Join Date: Nov 2009
Location: Southwest Montana
Vehicle:
1984 GL 4WD Wagon
Silver

Default Poor performance while cold

I was finally able to reproduce a problem reported by my wife with our 1984 GL. When the car is cold (left out in roughly 25 degrees for 8 hours) it starts fine, runs OK in 1st and 2nd gears, but won't pull 3rd until the temperature guage shows it has reached normal operating temperature. Once normal operating temperature is reached, car runs normally. I've done an initial check of vacuum lines without any leaks being detected. This car has a Hitachi carb which has a number of termperature dependent parts. Any suggestions on what order to troubleshooting?
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Old 02-18-2013, 01:09 AM   #2
Kevint143
Scooby Newbie
 
Member#: 332258
Join Date: Sep 2012
Chapter/Region: SCIC
Location: Bakersfield, CA
Vehicle:
1979 BRAT
alpine green/black

Default

My 79 brat did this same thing...I bought a weber
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Old 02-18-2013, 01:32 AM   #3
kingbobdole
Scooby Newbie
 
Member#: 85055
Join Date: Apr 2005
Location: colorado
Vehicle:
1989 XT-6

Default

That sounds almost normal, those old hitachi carbs are not usually very cold friendly. First thing to look at is to see when the choke opens. It's meant to enrichen the fuel mixture when cold, but it stays closed too long it can be an issue.
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Old 02-27-2013, 07:01 PM   #4
argonsoon
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Member#: 348503
Join Date: Feb 2013
Default

Mine does something totally different, when its cold it doesnt like to shift out of first gear :P
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Old 02-27-2013, 07:54 PM   #5
TurboneX
Scooby Specialist
 
Member#: 21676
Join Date: Jul 2002
Chapter/Region: NWIC
Location: Pacific Northwet
Vehicle:
RX 02Foz,05OB
Black

Default

Try changing the gear fluid.
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