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rpm,s up

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Old Oct 23, 2005 | 11:31 AM
  #1  
thirdbirds's Avatar
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Joined: Dec 2003
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From: ohio
Car: 87gta 88notch 89 5spdgta 92 vert
Engine: 5.7
Transmission: 700r4
rpm,s up

ok, have a question? i have tbi. when you turn on the heat,defrost,or air. it revs up and idles back down ? can feel this while at low speed what is the problem ?anyone ! thanks
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Old Oct 23, 2005 | 01:19 PM
  #2  
firebird45331's Avatar
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From: greenville, OH
Car: 86 Firebird, 2002 Monte Carlo, 91 v
Engine: 350
Transmission: 700R4
no problem, the ecm adjusts for the increased load. It's normal
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Old Oct 23, 2005 | 01:20 PM
  #3  
firebird45331's Avatar
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Joined: May 2005
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From: greenville, OH
Car: 86 Firebird, 2002 Monte Carlo, 91 v
Engine: 350
Transmission: 700R4
what part of ohio are you from?
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Old Oct 23, 2005 | 06:04 PM
  #4  
thirdbirds's Avatar
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Joined: Dec 2003
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From: ohio
Car: 87gta 88notch 89 5spdgta 92 vert
Engine: 5.7
Transmission: 700r4
brookville. just down the road from you !
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Old Oct 23, 2005 | 10:36 PM
  #5  
91ChevyRS's Avatar
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Car: 1998 Volvo S70
Engine: B5254S Engine
Transmission: Automatic
Axle/Gears: It's a volvo?
Re: rpm,s up

Originally posted by thirdbirds
ok, have a question? i have tbi. when you turn on the heat,defrost,or air. it revs up and idles back down ? can feel this while at low speed what is the problem ?anyone ! thanks

normal, its your a/c clutch clicking on and off, it goes away after about 5 minutes of normal driving, not a big issue at all.
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Old Oct 24, 2005 | 05:43 PM
  #6  
thirdbirds's Avatar
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Joined: Dec 2003
Posts: 34
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From: ohio
Car: 87gta 88notch 89 5spdgta 92 vert
Engine: 5.7
Transmission: 700r4
ok thanks! are you guys sure ? this thing will lunge forward with the brake on at a stop !
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Old Oct 24, 2005 | 07:09 PM
  #7  
91ChevyRS's Avatar
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Joined: Jul 2005
Posts: 566
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Car: 1998 Volvo S70
Engine: B5254S Engine
Transmission: Automatic
Axle/Gears: It's a volvo?
It could be that its because the car is cold and the fact that the a/c clutch is chiming on and off, if you drive it for about 5 minutes it will stop doing that and drive normally, its nothing serious...
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