* car does not tuen over *

[SundanceKid805]

First off lemme say this forum is the most helpful I've been on so thanx guys.

I saved this car from a junk yard, had too I got to many memories with a 96' Talon n couldn't pass it up. The car is bone stock, everything works n all the bells n whisltes are there. I noticed that the car had been sitting for a while and they did change some stuff before selling it. It has a new or rebuilt head and they changed the fuel pump.

So heres the deal, I go to gas up n I see this dude with his hood up, naturally I go over n ask if I can help, grandad was a mechanic so I know my way around a car. So his car won't start up, its a stock boosted Jetta, so I got some cables n I go over. So I hook it up, let it run so it charges a lil n he goes to crank it, nothing. So we wait a lil, he cranks it again but this time my car seems to lose some juice, like the battery went low. So I start to get worried n before I tell em to jus wait, he cranks it again n my car completly shuts off. I unhook em n go over to start my car n now I need a jump. So I get one n it start but its revvin at like 5-600 rpms, super low. I'm thinking its jus the batt. I go home n replace it, car starts right up. So next day I go to the store and I park, go in and when go to start it it doesn't turn over, nothin, even the lights go off. So I get another jump n get home, and its like idleling very rough n low, I get home turn if off n never started up. I tried it today and I use to jump it.

When it was on it seemed like it wasn't gettin fuel or somethin, I go to rev it n it like wanted to die n then it revs, but turned off right after. I already checked out some places here locally but there all Honda nerds so they don't have an idea n don't really trust em. Any idea anyone what it might be?? Need some serious help

 

[vingasoline]

Get it running and test the voltage from the alternator. It's probably bad.

Never boost someone with your car running.

 

[Dsmkauai]

What's does this mean bro?? If your talking about jumping someone else's car with yours, and not having your car running than your wrong my friend. You have to have your car running to get more juice over to the dead battery your jumping. Sure you could try with the car off and rely on your battery to do all the work. But this usually doesn't work there just isn't enough juice to flow to the other car, and it certainly won't charge the the battery. Which is the whole point of jumping someone you want to charge there battey back up enough so it will start.
Anyway o.p. start with the basics. Check fuses, check belts, check connections around battery and starter and alternator to make sure they are tight, check for corrosion. I simple test to see if your battery is getting juice from the alternator is. Take a multimeter and check the battery with the car off and see what it reads. Then turn the car on and check again, the battery voltage should have raised and stay higher than 12.7 normally on a good charging alternator you would see anywhere from 13.5-14 volts while the car is running. If this is low check the connection at the alternator and test voltage there if again it is low than the voltage regulator is bad on the alternator and needs to be replaced. If it is high at the alternator and low at the battery than most likey it is a bad cable or loose connection. It sounds like your battery terminals are dirty and your not getting a good ground. Here's a tip for keeping the battery terminals corrosion free. Get those red and black round felt pieces that go under the battey terminal and soak them in oil or even wd40. The oil will prevent corrosion from ever starting, I also spray the terminal for even extra protection. Hope this helps let us know!!

 

[vingasoline]

If the car being boosted has a serious electrical problem, like a short, and you boost it with your car running, your alternator gets smoked.