Topic: engine labor when a/c turned on
in Forum: C3 Engines
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Lifetime MemberIndianapolis, IN - USA
Joined: 9/3/2006
Posts: 2429
Vette(s): Silver 1974 Convertible - L82 4 speed
Low miles (was only 8,900 when I bought it in March 2006) - Now 54K miles. Original owner bought it as an investment for son's college expenses.
2008 Jetstream Blue Convertible
Must be a '74 thing Keith - mine does the same thing! I just keep the top down!
Seriously, welcome to the site!! Always glad to have another 74 here!! I'm sure someone here will have a better response for you than me. I'm not much of a wrench turner myself.
I wanted a Corvette my whole life, but I never dreamed of all the wonderful people I would meet because of it!
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Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
Welcome to C3VR!
First, make sure the idle stop/anti-diesel solenoid is working properly, and the idle speed is correct for the car. If not, then adjust the A/D solenoid plunger to set the idle speed with the engine running. If it continues to stall, or almost die when put in gear, with the A/C on, it's possible the A/C compressor is putting too much of a load on the engine, due to internal damage, pulley bearing damage, or even too much freon charge.
What is the idle speed without the A/C on, in park?
First, make sure the idle stop/anti-diesel solenoid is working properly, and the idle speed is correct for the car. If not, then adjust the A/D solenoid plunger to set the idle speed with the engine running. If it continues to stall, or almost die when put in gear, with the A/C on, it's possible the A/C compressor is putting too much of a load on the engine, due to internal damage, pulley bearing damage, or even too much freon charge.
What is the idle speed without the A/C on, in park?
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
in Forum: C3 Engines
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