348 can't start after 2 weeks

The click, click, click sound normally means that the battery needs to be replaced. It doesn't have enough juice to crank up the motor.

 

+1

Battery probably can't hold a charge anymore.

 

DO NOT jump start the car! I know you already did, but don't try that again. That is the fastest way to fry an ecu.

Okay first, could you fill out your profile please?

Second what year is your car? If it is an early model 348 check the bullet connectors. There is one under the air box, going to the starter from the battery. The other one is on the negative cable coming off the battery going to the ground on the frame. Check to make sure those are clean and connected properly. That is if you have them.

 

Just go buy a new battery tomorrow (or today). Per above, yours is dead. Mine did the same thing...click click. Replaced battert...then Vroom Vroom.

Remember to let her sit for 15 minutes at idle after starting up after turning the battery off or replacing it. Do not remember what this does - I think it lets the mixture retune itself to current conditions.

 

A battery with a good charge should be at least 12.5 amps.

Since your car is a '90 definitely look at the bullet connectors. They looks like this. http://ferrarichat.com/forum/showpost.php?p=136065730&postcount=11

 

It lets the Motronic ecu's relearn the warm up parameters.

 

In future, leave the battery on the tender when the car is going to be left idle.

This saves the hassle in disconnecting it and letting the ECUs re-learn the air/fuel maps upon re-connecting and start up.

 

If you connected that battery to another car and it did not start it's obvious that you have a bad battery. Most battery chargers do not give accurate feedback as to the state of charge. When we test them in the shop we put a large draw on them (200-300Amps) and watch to see that the voltage does not drop below 10V. With out it you can measure it with your multimeter. After you charge it let it sit for a day and measure it. Do not overcharge as it will kill a battery. Use a 1-2A charge setting for 24 hours. 10-40Amp settings is for quick charge and starting(Don't do it with this car as Ernie said), and for that matter you should disconect both terminal while charging. A good lead acid battery should sit between 12.6-12.8 Volts. If It's down around 12-12.2V its lifetime is short. Parasitic draws should be less than a milliamp. It's common to measure it and find that you have 0.5-1 amp from a light/alarm system/audio. Pull fuses one at a time until it goes away, and then trace that circuit. Ernies right about bullet conectors, and conectors in general, but you said you tried it in another car with a no go!

 

I sure do.

Get rid of the stupid thing altogether, put in a solid cable. You can get one made cheap, about $10. When I made mine I put a marine style quick disconnect on the negative terminal. Be sure to change both the +/- cables out.

 

Hey Mark, hows the rebuild coming along?

 

It's going great! I'll start a thread soon. Valves are out and I am measuring everything. Guides appear to be in good shape. I hope to start reassembly soon.

 

If you feel like paying more for quality/lifetime then get an Optima.

 

I have a light weight Odyssey battery in my car. Only weighs 15.5 lbs.

 

Coolness, I'll be looking for it.

 

Hey if in So Cal. The stooges will come get your car running but you'll owe three of us lunch.

 

Oh yeah, I'm game for a "free" lunch. But I think he's got this one handled.