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Discussion Starter · #1 ·
I drive a 1975 280 with the Bosch L-jet fuel injection
I will periodically have problems with the car when I turn on the headlights. I was thinking that this might be due to a poor ground somewhere so I ran secondary grounds to the front of the engine compartment. This worked well for a while, but sometimes the car still dies-when I turn on the lights the ammeter pins along with all of the other gauges. The lights die and the car stops. Iused to have a high current draw stereo so I installed a beefy battery and a 60 amp alternator. Could the battery be the problem? I replaced the dash with that of a 77 so I had to re-wire the wole thing and I was thinking that this might also have caused the problem. Please Advise.
 

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RE: Your Car Is FUBAR

That's an expression that means "[Fouled] Up Beyond All Recognition." If you're serious about getting it on the road again, sit down and make a list of all the various tweaks you've done to it and get the car and the list to a shop that specializes in resurrecting the victims of serious electronic sabotage. That's the smartest and cheapest thing you can do at this point.
 

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Slim is Right

One of the foremost techniques in troubleshooting a problem is to ask "What has changed?" sounds like you may have a very long list. Haven't a clue what to advise when no one has a clue of what you have any more. Give one last shot at it and have your battery load tested at a local parts store - you may have a dead cell.
Phantom
 

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<b>RE: A dead cell will not hold a charge but will

jump start and recharge enough to start the car right after it is shut down. It will, however die in a short period of time. A weak battery will exhibit the symptoms you described, though and it will even test good but low charge on a load tester. Install a known good battery and see if this cures your problem. I've tested about 400 batteries in the past year. Good luck.
p.s. If you recharge your battery, wait about one hour before testing it as this will yield a better test result. If it still says good battery low charge --- it is expiring, whether you have another problem or not. It is bad.
 

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sounds like you have an intermittant short in the head light circuit ( if the car dies only sometimes).
Without knowing the particulars it is hard to diagnose but what i'd do when it dies next time, I'd start removing (isolating parts of head light circuit) parts of the suspected circuits one at a time then seeing if car still dies. If you remove a part then if the car does not die then you have isolated the trouble to that area, and go on from there. It helps to have a good circuit diagram. If you need diagram, email me .
Tom
 

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There's No Such Thing As An Electrical Problem.

When some poor soul says he's got an electrical problem, what he's really got is a shop manual deprivation problem, a lack of comprehension problem, a lack of electrical testing equipment problem, or a plain old stubborn ignorance problem. We can't correct any of those problems here.

After an older car's been tweaked, jury-rigged, rewired and screwed up by a succession of half-baked owners, wrenches and "stereo installation specialists," there's no way on earth the respondents to an auto forum are gonna be able to diagnose what's wrong with it. If a guy's too fuzzy-headed to figure out what's wrong with his own car, he's probably also too forgetful to mention in his post that he's got a few electrical components from a '51 Dodge Wayfarer hooked up in it. ESP won't tell us that.

Sure, some genius is always gonna say "Get a new battery." That fixes things for about a week, sort of like giving a heart transplant to a patient who's dying of an acute kidney infection. A new battery most often corrects the symptoms while leaving the underlying condition untouched. That's why about 80% of trade-in batteries are tested and found to be perfectly good.

Guys who post headings here like "Electrical Problem" or "Why the %@#^! won't my %@#!ing car start" are wasting everyone's time, including their own. They might as well get out granny's ouija board and look for an answer.
 

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<b>RE: Ask away,thank God everybody doesn't knowit

No insults to your intelligence, no false references or bad attitudes ever fixed anything. Everybody has there own individual level of expertice at a given point in time. If you want to know, ask. If someone doesn't want to tell you, they can ignore your post. Maybe they don't have a clue what the answer is and don't like you reminding of that.
 

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Electronics Tech Opinion

I am not going to touch this with a 10 foot pole except to say that "trons" are for us chipheads and not the uninitiated to the "tron" god. I, for one, can't tell if piston number one is at top dead center to install a timing chain or whatever... Therefore I rely on you guys for assistance.
 

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Huey Long Said It Best.

And what he said was, "Blessed is the man with nothin' to say who don't mind sayin' it." In other words, the guys who keep asking for advice on electrical problems on the internet don't mind if it's dead wrong, which a lot of it is; or if it comes from prison inmates, paint sniffers and 12 year-old kids, which much of it does, as long as the askers don't have to read a book or do any hard thinking.

Man, I'm glad I own a piece of an auto parts chain. Half-smart advice, and the people who take it, keep ol' ZX Slim riding the gravy train.
 

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<b>Ted, Do yourself a favor.</b>

Try your best to get your hands on a good wiring diagram. You do not have to be a tech-head to follow a line on a piece of paper. That's how I started. It is really easy to find out what wires are what color, originate where, go where ect. It is easier than you think. Once you do this take the time to rewire some of the "worst case" spots you can find, even if it is not directly connected tothe problem. Take a weekend and dedicate it to this. The proper tools for wiring are cheap. Get them, you will use them more and more.
Good luck

Craig76Z
 

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Car dies for no reason. When it does gauges dont work and injectors wont open. But plugs are firing. Starts working when gauges do by it self.
 
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