Bad Grounds Can Do Crazy Things! (Low Fuel PSI)

Рет қаралды 17,014

Күн бұрын

Пікірлер: 60

@mr.technician2638 10 ай бұрын

Rules of governing on parallel= adding another resistance on a parallel circuit, increases total current flow...it seems this is what's happening here, pump alone it will good when you add head lamps another load, ground path can't handle anymore due to current increases making the shared ground thats already loose or corroded gets hot, temperature affects current flow and this is the example.

@dantheman1106 10 ай бұрын

Old Ford Truck had starting problem. Somehow the headlight switch is tied into the ignition system. Replacement of light switch fixed all the weird crap that was going on. 35 years ago so I don't remember how I figured that one out. Crazy things can happen.

@chrisspear3551 10 ай бұрын

Funny you say that becuse I had the same problem on a 1995 Ford F250 I w as so happy the switch was the fix

@petem6291 10 ай бұрын

My father had a 53 ford you would have to pull the headlight switch out to start the car??

@mostlymoparih5682 10 ай бұрын

That is crazy. Good stuff Professor.

@DestDroid 10 ай бұрын

Wait so the customer actually described the problem correctly? That's insane.

@ScannerDanner 10 ай бұрын

He did! And he smelled like alcohol when he came in and I thought he was just drunk lol

@mr.technician2638 10 ай бұрын

😅@@ScannerDanner

@goinhot9133 10 ай бұрын

@@ScannerDanneris this a main ground from the block to chassis/battery? Or a bad ground somewhere else? I’ve had my chassis ground do weird stuff but always wondered if a bad ground ina separate circuit would do the same thing..

@ScannerDanner 10 ай бұрын

@@goinhot9133check out the full video linked in the short. It's only 11 minutes long. Thanks so much!

@lakesautomotivediagnostics6509 10 ай бұрын

Crazy stuff

@careyautorepairs 10 ай бұрын

Saving this to my playlist.

@JaySosaNY 10 ай бұрын

That’s wild I would have never guessed that could even be possible

@isalmankhan1 10 ай бұрын

Amazing this one is really different, it sure must be a corroded block ground, but that's my opinion😅 Thanks for sharing SD, STAY BLESSED🙏🏻🙏🏻🙏🏻

@nateb.1568 10 ай бұрын

Thats wild 😂. Thats about as bad as my lawnmowers ignition being grounded through the headlights lol.

@homealone5087 9 ай бұрын

I had the same thing. While signaling, while braking, and headlights. It was the alternator.

@ScannerDanner 9 ай бұрын

Check out the full case study linked in the short. Thanks!

@timothyball3144 10 ай бұрын

Thats crazy. Thanks for bringing the weirdness.

@spelunkerd 10 ай бұрын

Although the bad ground title of the video explains it well, to be honest that would not have been my first thought. Just like headlights dim when a starter is used with a weak battery, the fuel pump may get less juice when lights test a weak battery, too. And this might be a first clue with a failing alternator, where the alternator can't keep up with high demand. I remember limping home one cold winter night like this with a bad alternator. Those wise enough to do further testing might show another clue, like voltage drop on the ground line. The bad ground could mess up alternator charging, so I can see how the unwary might get a new alternator by mistake! The take home message is not to have tunnel vision. It makes me wonder why some are so quick to call the alternator bad, without drop testing each side.

@ScannerDanner 10 ай бұрын

For sure! I'm hoping with time that people understand these shorts have the links to the original video they're pulled from and when they have questions or judgements lol that they'll start watching the full video first.

@lanwickum 10 ай бұрын

Had headlights and blinkers cause a pickup to do all sorts of stuff. The dash had all the lights on. Traced to corrosion in fuse box.

@nunya2814 10 ай бұрын

First thought might be something to do with the alternator or maybe bad grounds.

@معاذابوسعد-ر7غ 10 ай бұрын

Oh my God, the video was posted before 11 I really thank you for all the love from Yemen ❤

@SuperSecretSquirell 10 ай бұрын

Just don't drive at night 😂

@ScannerDanner 10 ай бұрын

😂😂

@gnomiefirst9201 10 ай бұрын

Turn up the radio.

@sb350allday 10 ай бұрын

lol awesome thanks for sharing

@2491kridge 10 ай бұрын

Just wire in a secondary fuel pump and tie it into the headlight switch, that way when you turn on the headlights it kicks on your secondary pump and makes up for the lost power, easy peasy

@ScannerDanner 10 ай бұрын

😂

@TheCanadianBubba 10 ай бұрын

Chassis grounds rotted off, lots of that up here.

@eliezerramosjr1017 10 ай бұрын

If his control sided systems like lights causing these misfires then most likely sounds like a load issue potentially a wire issues like an open or short ground.

@ScannerDanner 10 ай бұрын

Check out the full case study linked in the short!

@bosaadbosaad6792 10 ай бұрын

i think short to grond in headlight wiring

@ronvessells1356 10 ай бұрын

I would say check the fuel pump ground with the headlight off then test with headlight on.

@ScannerDanner 10 ай бұрын

I did that exact thing! Check out the full length video linked in the short. Thanks!

@aranhaydar9195 10 ай бұрын

I think that's probably a weak ground somewhere, But i actually had a Nissan brought to me around 1 year ago with the same complaint but the cause for that was a burnt out tail light, some Nissans do weird stuff when there's something wrong with the tail lights 😵‍💫

@kenmelrose3429 10 ай бұрын

trying to find a path to ground

@Mr.Walker994 10 ай бұрын

What make would tie the fuel pump with lighting? Im gonna guess saab?

@ScannerDanner 10 ай бұрын

Grounds!

@chrisspear3551 10 ай бұрын

Well you could look at it this way .when ever you have to use any of those lights you probably should be Slowing down any how lol

@marksavastano8339 10 ай бұрын

Find the ground wire more than likely it’s dirty and not doing its job I clean mine with battery cleaner my car was not starting next day Evan with brand knew battery it took me a while to figure all the fuses I checked them all no dropping voltage so just for the hell of it I clean the battery cables real good tape them up cleaned all the grounds so far so good only when I put the air conditioner on does it get a little funny the ants go down but that’s normal but are you gonna 96, 4.6 with 160,000