what possible is gone on ,//
cluster flickers ,

 

Disconnect the ground wire from your battery. Connect a test light between the ground terminal and the disconnected wire. If it is lit, then there is a cuurent draw. Pull fuses one at a time until the bulb goes out. Then you have found the faulty circuit.

 

Can you jump the car, and have no flickering, when its running. Are you trying to start the car and it flickers, cause there isnt enough juice to start it. Most automotive places will check your alternator and battery for free.

http://www.oreillyauto.com/site/c/he...reservices.oap

 

Did you find the issue? I have an 87 conv and I'm have the same problem

 

Could be one of many possible problems
Either do a search or start a new thread outlining what tests you have done so far ?

 

Ghoghos: Ya need your own thread methinks; this one = 3+ years ago, and offers very little in the way of help or feedback.

In the mean time, a couple basic things you can do easily to narrow the focus a bit:

Are the battery terminals clean?

Before starting the car, measure the voltage between the battery posts. 12.8+ (approx) = fully charged, more or less. 12.2 = discharged, and < 12.0 = battery is under duress for various reasons.

Alternator check: If car starts, measure voltage between the battery posts. Normal range = 13.5 to 14.7 volts; 13.5 when fully charged/warm, and 14.7 discharged/cold

If the alternator is charging, but the battery is not holding a charge, have it tested and replaced if tests prove it is beyond salvaging.

With engine off, everything turned OFF including doors closed (courtesy lights and under hood lights OFF) measure the current between the battery and the (disconnected) negative cable. Should be 50mA (0.050A) or less, typically tho closer to 25mA is nominal. If current draw is higher than 50mA, then pull each fuse, one at a time, and note the current change, and reinstall the fuse. If you pull a fuse and current falls sharply to within the 25-50mA range, that may likely be the circuit with the load.

Then start your own thread, let us know what you discovered, and we can go from there!

 

Great idea thanks

 

Better to start a new thread this one is five years old.