95Blackhawk

All,

Do the alternators need to be turning before our cars will fire up?



Took down my Hawk over a month ago on an opti issue. I have replace the opti and have done a complete diagnostic on the ICM, fuel pressure, and opti signal. All check out good.

I did not want to put the dampener on yet to check to see if it will fire up. However since all is checking out, it makes me think that the aternator needs to be turning for these things to fire.

This is the last thing I have before I change the computer (however, the computer checks out in all circumstances so why change).

white97T/A

I've started mine before with no belt on.

white97T/A

But as you mentioned you "took it down" over a month ago, you might need to put a battery charger on it to get it to start.

95Blackhawk

It was charged and cranking the engine great. Do you have another suggestion? Any ideas appreciated.

Pontiac_97

i started mine without a alternator or belt on. i ran it for a good 1-2 minutes with the fog lights on. charge the battery and see if it fires

94CamaroZ28

Reseat the PCM connectors. One loose connector prevented my car from firing. even though fuel pump came on and all else looked fine. Unplugged pcm, plugged it in again, all was well.

GreasyB

It should be fine to fire it up without the alternator. But dont run it for too long or else you will probly ruin your battery.

Z95m6

You don't have a racetronix fuel pump booster setup do you? If so that wiring harness hooks directly to the back of the alternator and thats where it gets its power from. I've fought starting my car with out the alternator so I could adjust the rockers and it took me forever to figure out that it wouldn't fire because the fuel pump harness was unhooked.