All the lights (head lights/interior lights) flicker when I'm not moving. But as soon as I give it gas all the lights are steady on what can the problem be? I'm thinking that alt is bad what do you guys think??

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David Higgins
1986 Black Iroc-Z
305 TPI
Edelbrock Cat-Back
K&N Air Filters

 

Sounds like the voltage regulator or a grounding problem. Check the woven copper ground strap between the chassis (fire wall) & the pass side head & the strap between the battery neg. terminal & the chassis.

Tim

 

Do u have underdrive pulleys??

 

I hope I dont' sound stupid but what is an under drive pully?

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David Higgins
1986 Black Iroc-Z
305 TPI
Edelbrock Cat-Back
K&N Air Filters

 

An underdrive pulley is a replacement crank pulley (and sometimes a new alternator pulley).. By putting a smaller pulley on the crank to drive the belts, you can take some load off the engine... Freeing up some extra HP..

On the other hand, your alternator, power steering, a/c, water pump, and whatnot now all spin slower. This really doesn't matter if you're moving, BUT it could cause a problem if you idle for a long time, in that there's a lot of electricity drain, but not much power being made...

Many people have no trouble with it tho... Try just revving your engine if you're at a light for a long time... should help keep a charge.

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91 T/A 305
STB, Airfoil, Hooker cat-back, pseudo-cold air to K&N, Accel coil, !cat, !smog pump.
300 lb*ft of rice churning power.