V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

What are idle RPMs for the 3.1 V6?

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Old May 1, 2024 | 10:26 AM
  #1  
drabina's Avatar
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From: NJ
Car: 92 Camaro RS
Engine: V6 3.1
Transmission: 5 speed
What are idle RPMs for the 3.1 V6?

My 92 RS with 3.1 V6 idles around 1000-1100 RPMs when fully warmed up. Starts around 1800-2000 when cold. Isn't the idle RPM a bit high? It is a stick shift.
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Old May 1, 2024 | 01:22 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
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Re: What are idle RPMs for the 3.1 V6?

Is your tachometer correct ? Checked for vacuum leaks ?
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Old May 6, 2024 | 02:03 AM
  #3  
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Car: Firebird
Engine: 3.1
Transmission: 700r4 /borg warner t5
Re: What are idle RPMs for the 3.1 V6?

specs for a manual should be 800-900 operating temp cold start i think ~1500
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Old May 6, 2024 | 08:35 AM
  #4  
drabina's Avatar
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From: NJ
Car: 92 Camaro RS
Engine: V6 3.1
Transmission: 5 speed
Re: What are idle RPMs for the 3.1 V6?

Thanks. I may actually have a vacuum leak. Just need to find time to check it.
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Old May 11, 2024 | 05:09 PM
  #5  
drabina's Avatar
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Joined: May 2013
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From: NJ
Car: 92 Camaro RS
Engine: V6 3.1
Transmission: 5 speed
Re: What are idle RPMs for the 3.1 V6?

I connected my smoke pump to the hose by the brake booster. The only smoke that came out was by the air filter. Noting in between. The tach still shows about 1200 as the running (engine warmed up) RPMs. To my ear, the car does run at high RPMs so the tach could be correct but I am not an expert. Any other ideas?
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Old May 13, 2024 | 01:51 AM
  #6  
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Car: Firebird
Engine: 3.1
Transmission: 700r4 /borg warner t5
Re: What are idle RPMs for the 3.1 V6?

check for a dirty iac valve maybe it cant seat annymore
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