Hey,
I have a Q-jet on my 350 87 camaro and i swear when the air cleaner is off i hear a kind of high pitched clicking sound comming from the carb. at first i thought it was just a linkage rattling around but i put my hand on every moving part on that carb and i still heard the sound. I have thrown a rod before and it sounds nothing like that. but it is bugging the hell outa me.
Any help would be great!
Thanx

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keep the stang's far behind u and the cops even farther

 

Mixture Control Solenoid.

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ASE Mechanic/Machinist/Smog Tech

1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R

GO #3

 

Thanx for the help. Is it internal or External And do i need to replace it or what? O yea i think im running a little on the lean side could the solenoid be the problem? Well thanx!

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keep the stang's far behind u and the cops even farther

 

Does it do it even when the car is off and the key turned on? if so it is the mixture control solnoid, and don't replace it, if it stops doing this then replace it.

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Taylor Spiro-pro wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

 

It's supposed to do that. That's how the computer adjusts the mixture. Like the other post said, if it stops, you've got a problem.

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"So many Mustangs, so little time..."

 

A expensive problem, actually if it goes out. I had rebuilt the Q-jet on my '84 T/A recently - I had looked into how much a replacment mixture solenoid would run. Dealer was the only one who had it and they wanted $125 for it. Fortunately I didn't need one, and hopefully you or I won't need one for a loooong time

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Original owner - '84 T/A w/stock 305HO 5-speed