Thank you so much man! I have a 98 mustang gt and randomly yesterday my speakers started making popping noise when id break or even random so i looked at the G203 & G204 and both had been covered in rust as well as the wall for them so i had disconnected the battery and loosen the bolt and used a brass brush to clean the areas free from rust. Now the speakers are back to perfect
I’m having a issue where my car shut off and went into antitheft mode so I thought it was a wiring or ground issue after replacing my alternator battery and starter diddnt work so I completely redid both the grounds under neath the starter and the one that grounds engine to frame I also ran a whole new positive wire to the starter I’m so confused on what’s causing the brand new starter just to click in ceartain it’s a problem with my key or pcm but I have no way of checking if anyone has anything or has has a simalar problem please let me know
@@chilled2023 I think it’s a loose or bad ground , the voltage is at 12.3 and when I turn the key over it drops low. We replaced starter and battery and bypassed the clutch safety switch & tested the battery terminals
Just got a 98 manual GT. Was driving fine when it suddenly cut off on me. No electrical power at all not even dash lights. Got it boosted off n when I got home it cut off again same thing no dash lights or any electrical power won’t jump off now. Replaced the alternator and ignition switch already and battery terminals got the battery tested they said the battery is good. Any suggestions?
I would check all of the grounds then the condition of the ground wires (look for cut wires, pierced insulation). If you're losing ALL electrical then that sounds like a fault in between the battery and fuse boxes.
driver's side, above the oil pan near its corner Here's another view of it (look at 1:33 of the following video) ua-cam.com/video/xRGUsM-302k/v-deo.html
@@OldSchoolNoe Gotcha, thanks. The ground closer to the oil filter housing grounds the engine to the negative battery terminal, correct? And then the ground further away grounds the engine to the frame/chassis?
@@bg1617 there's only 1 ground there, I was talking about studs and had them in the white circle. The bottom left circle, that's where the ground is, it grounds the engine to the chassis. The other circle is showing where the bracket for that wiring loom is.
Thanks so much I don’t have the motor mount to frame ground wire it broke off when I swapped the motor? Could that be the reason the car won’t even try to start?
YES, the starter motor gets its ground at the engine block, and that wire grounds the block to the frame, which reaches the negative post on the battery.
Good video! I just found out today that my wife's '98 convertible is missing the strap from the motor mount to the unibody and also missing the strap on the starter. Where does the other end of the strap at the starter connect to?
@@OldSchoolNoethis one has the negative to the driver's motor mount and an empty stud holding the starter on. Then there is no strap from the motor mount to the unibody. We know the engine was swapped in the past, but it was done by a Ford dealership. I would hope that they would do better work than that. Looks like they didn't though.
@@OldSchoolNoeI was checking all the grounds because the car would click once and then go completely dark when trying to crank. I found a bad connection at the positive replacement cable end, but not before finding the factory grounds missing. I have it fixed now and it starts, but now I need to add a ground strap from that motor mount for sure. Some hotshot mechanic probably shortened that negative cable and put a new end on it and bolted it to the motor mount instead, thinking the starter would ground fine through the block, which it does seem to be doing.
Which specific fuse, Is that Fuse #14 in the engine bay fuse box? (Feeds Fuel Pump Driver Module) Fuse #26 feeds the PCM Fuse Pump gets power from the instrument cluster (shown in a wiring diagram) Fuel pump grounds at G203/G204 ( 2:19 in the video). The Fuel Pump Driver Module Grounds at G400
@@Camille-d8b Ok if fuse #14 keeps blowing when you try to start it, then most likely there is a short circuit somewhere. This is how the circuit looks like: Fuse #14 (Hot at all times) feeds into the CCRM (Constant Control Relay Module). This module is (NO) (normally-open, so power won't flow by unless commanded). This module has the "fuel pump relay" internal to it. That feeds into the Inertia Fuel Shutoff Switch, then it goes into the fuel pump driver module. That feeds in 2 directions, 1 to the fuel pump and the other to the PCM. The circuit uses the PCM as ground and G400. There is a fault with one of those items or there is a fault in the wiring to one of those items. I would check pin 2 of the inertia fuel shutoff switch for voltage as you crank the vehicle. If it does not and the fuse blows, then I would suspect the CCRM
Weird things happening to my 2001 mustang. Just had to repair some rot in the strut towers so the motor came out. It’s all back together but now when I turn my headlights on, the turn signal light on my drivers side goes very very dim along with the drivers headlight and also the left turn signal on my dash stays on when the headlights are on. Also the car won’t even turn to start it if the headlights are on. I can’t figure this out
1. Before the motor came out the lights were normal? 2. Are the terminals clean? 3. How old is the battery? Does it have a voltage of 12.6? 4. How are the other electronics? Radio, for example, does it dim out too? 5. Did you put back the engine to chassis ground?
My 2003 was working fine when suddenly it got no power when trying to turn it on. Pulled the car home & when I arrived it turned on. After that hasn’t gotten any power since. Could it be G105 to the starter? Or the ground strap from the engine to frame? TIA
@@OldSchoolNoe basically yes put the key in and turn but no crank or power comes on. Before that electronics were working fine maybe some slight dimming when turning on the lights and turn signals
@@diegodl2310 check the condition of the battery, (voltage), battery terminals. If battery is at least 12.6 and the terminals are clean and secure, then start checking the main fuses.
driver's side, above the oil pan near its corner Here's another view of it (look at 1:33 of the following video) ua-cam.com/video/xRGUsM-302k/v-deo.html
Hopefully G203 & g204 fix my radio not powering on, stupid cousin wired in a sub and radio before i got the mustang from him and i put in a different radio i liked more and it refused to power on
The fuel pump is on the 205 splice, which grounds at G204. I'm not seeing the components you asked for in the wiring diagrams that I have. Are you troubleshooting a no fuel pressure or inactive gas gauge?
@@Camille-d8b did the old fuel pump have some pressure before you replaced it? Can you hear the fuel pump "prime?" Whenever you insert the key and put the vehicle in "Run Mode" (Position before you crank the vehicle) you should hear a humming-type noise coming from under the vehicle. Can you hear that?
This is exactly what I’ve been looking for. I’ve poured over grounding diagrams til my eyes bleed but none of them show detail like this. Thank you!
Fantastic video. This info is not the easiest thing to find, even in a manual. Much appreciated.
Thank you so much man! I have a 98 mustang gt and randomly yesterday my speakers started making popping noise when id break or even random so i looked at the G203 & G204 and both had been covered in rust as well as the wall for them so i had disconnected the battery and loosen the bolt and used a brass brush to clean the areas free from rust. Now the speakers are back to perfect
awesome!
Very well done video. Thanks!
Awesome video
I’m having a issue where my car shut off and went into antitheft mode so I thought it was a wiring or ground issue after replacing my alternator battery and starter diddnt work so I completely redid both the grounds under neath the starter and the one that grounds engine to frame I also ran a whole new positive wire to the starter I’m so confused on what’s causing the brand new starter just to click in ceartain it’s a problem with my key or pcm but I have no way of checking if anyone has anything or has has a simalar problem please let me know
I’m having the same problem, did you end up finding anything ??
Theft mode? Probably your key
@@chilled2023 I think it’s a loose or bad ground , the voltage is at 12.3 and when I turn the key over it drops low. We replaced starter and battery and bypassed the clutch safety switch & tested the battery terminals
Have you found a fix yet? My antitheft light goes on but my cars starts and drives but everything inside doesnt work
I'm having the same problem.
Just got a 98 manual GT. Was driving fine when it suddenly cut off on me. No electrical power at all not even dash lights. Got it boosted off n when I got home it cut off again same thing no dash lights or any electrical power won’t jump off now. Replaced the alternator and ignition switch already and battery terminals got the battery tested they said the battery is good. Any suggestions?
I would check all of the grounds then the condition of the ground wires (look for cut wires, pierced insulation). If you're losing ALL electrical then that sounds like a fault in between the battery and fuse boxes.
@@OldSchoolNoe okay thanks doing that now. Will give an update !
Did you happen to find out what was causing your problem?
The ground at timestamp 0:54, can you provide more details of where that ground strap from the engine to the frame is located, exactly? Thanks
driver's side, above the oil pan near its corner
Here's another view of it (look at 1:33 of the following video)
ua-cam.com/video/xRGUsM-302k/v-deo.html
@@OldSchoolNoe Gotcha, thanks. The ground closer to the oil filter housing grounds the engine to the negative battery terminal, correct? And then the ground further away grounds the engine to the frame/chassis?
@@bg1617 there's only 1 ground there, I was talking about studs and had them in the white circle. The bottom left circle, that's where the ground is, it grounds the engine to the chassis. The other circle is showing where the bracket for that wiring loom is.
@@OldSchoolNoe Ok, understood. So what is the G# for the ground that connects the engine block to the battery?
@@bg1617 it does not have a #, Ford just calls it the ground strap
Thanks so much I don’t have the motor mount to frame ground wire it broke off when I swapped the motor? Could that be the reason the car won’t even try to start?
YES, the starter motor gets its ground at the engine block, and that wire grounds the block to the frame, which reaches the negative post on the battery.
That junkyard location looks familiar with that In-n-Out next door, lol.
2:13 what's that red wire behind the clutch connected to. Mines disconnected and I don't know where it goes
it connects to an aftermarket stereo system
Good video! I just found out today that my wife's '98 convertible is missing the strap from the motor mount to the unibody and also missing the strap on the starter. Where does the other end of the strap at the starter connect to?
Starter should connect directly to the negative battery terminal
@@OldSchoolNoethis one has the negative to the driver's motor mount and an empty stud holding the starter on. Then there is no strap from the motor mount to the unibody. We know the engine was swapped in the past, but it was done by a Ford dealership. I would hope that they would do better work than that. Looks like they didn't though.
@@elburno454 sounds like a rushed job, what kind of issues does the vehicle have?
@@OldSchoolNoeI was checking all the grounds because the car would click once and then go completely dark when trying to crank. I found a bad connection at the positive replacement cable end, but not before finding the factory grounds missing. I have it fixed now and it starts, but now I need to add a ground strap from that motor mount for sure. Some hotshot mechanic probably shortened that negative cable and put a new end on it and bolted it to the motor mount instead, thinking the starter would ground fine through the block, which it does seem to be doing.
Are there any grounds for the fuse box ? My fuel pump fuse keeps blowing when I try to start it
Which specific fuse,
Is that Fuse #14 in the engine bay fuse box? (Feeds Fuel Pump Driver Module)
Fuse #26 feeds the PCM
Fuse Pump gets power from the instrument cluster (shown in a wiring diagram)
Fuel pump grounds at G203/G204 ( 2:19 in the video).
The Fuel Pump Driver Module Grounds at G400
@@OldSchoolNoe yes it’s #14 my interia isn’t getting any power
@@Camille-d8b Ok if fuse #14 keeps blowing when you try to start it, then most likely there is a short circuit somewhere.
This is how the circuit looks like:
Fuse #14 (Hot at all times) feeds into the CCRM (Constant Control Relay Module). This module is (NO) (normally-open, so power won't flow by unless commanded). This module has the "fuel pump relay" internal to it. That feeds into the Inertia Fuel Shutoff Switch, then it goes into the fuel pump driver module. That feeds in 2 directions, 1 to the fuel pump and the other to the PCM. The circuit uses the PCM as ground and G400.
There is a fault with one of those items or there is a fault in the wiring to one of those items.
I would check pin 2 of the inertia fuel shutoff switch for voltage as you crank the vehicle. If it does not and the fuse blows, then I would suspect the CCRM
Where would the g101 ground be located on the 4.6 2004 model
follow the connector from the A/C Compressor, black wire, should ground nearby.
Thank you!
Going to see if the fuel sending unit ground runs to the trunk...swapped the pump and sending unit...keeps reading full. Disconnect and it drops to e.
Thank you sir 🤘
Great video. I’m sure I can find my issue with this
Ford or GM. OldSchoolNoe Does not discriminate. Great video.
I had a lot of fun making it! Apparently a few motorists used to believe that UFOs used to shut down cars, interesting.
@@OldSchoolNoe Its true. Happens all the time. .
Weird things happening to my 2001 mustang. Just had to repair some rot in the strut towers so the motor came out. It’s all back together but now when I turn my headlights on, the turn signal light on my drivers side goes very very dim along with the drivers headlight and also the left turn signal on my dash stays on when the headlights are on. Also the car won’t even turn to start it if the headlights are on. I can’t figure this out
1. Before the motor came out the lights were normal?
2. Are the terminals clean?
3. How old is the battery? Does it have a voltage of 12.6?
4. How are the other electronics? Radio, for example, does it dim out too?
5. Did you put back the engine to chassis ground?
My hero
My 2003 was working fine when suddenly it got no power when trying to turn it on. Pulled the car home & when I arrived it turned on. After that hasn’t gotten any power since. Could it be G105 to the starter? Or the ground strap from the engine to frame? TIA
So its in a no crank condition? yes those 2 grounds could cause something like that. Are the electronics working fine such as the radio?
@@OldSchoolNoe basically yes put the key in and turn but no crank or power comes on. Before that electronics were working fine maybe some slight dimming when turning on the lights and turn signals
@@diegodl2310 check the condition of the battery, (voltage), battery terminals.
If battery is at least 12.6 and the terminals are clean and secure, then start checking the main fuses.
@@OldSchoolNoe got a new battery and terminals before it happened. I’ll check the main fuses and the ground locations
@@diegodl2310 also check all black ground cables that go to the battery terminal, maybe one of them got disconnected.
So g203 and g204 could possibly be causing my cluster to flicker?
Go take a look at the ground, clean it and snug it up. If that doesn't fix your issue then its something else.
Where exactly is the ground from the engine to the frame I look at the driver side and can’t seem to find it is it under the dash?
driver's side, above the oil pan near its corner
Here's another view of it (look at 1:33 of the following video)
ua-cam.com/video/xRGUsM-302k/v-deo.html
@@OldSchoolNoethank you
Would this work for a 98 mustang gt??? Any help would be greatly appreciated!
should be similar grounds
Would a loose ground cause a parasitic draw?
No
Where does the ground in the starter lead to?
G105 , it should go straight to the negative battery terminal
Hopefully G203 & g204 fix my radio not powering on, stupid cousin wired in a sub and radio before i got the mustang from him and i put in a different radio i liked more and it refused to power on
How can contact you i have a few question about my 2000 mustang gt or how do inbox you
Just post them right here, that way it might be helpful to someone else in the future.
can you do a foxbody
Got a location for S230? Splice ground for sending units and fuel control module.
All I see is S451 splice that goes to the fuel pump driver module. That one is grounded at G400
The fuel pump is on the 205 splice, which grounds at G204. I'm not seeing the components you asked for in the wiring diagrams that I have. Are you troubleshooting a no fuel pressure or inactive gas gauge?
@@OldSchoolNoehow do you do that ? I’m not getting any fuel pressure I just replaced my fuel pump
@@Camille-d8b did the old fuel pump have some pressure before you replaced it?
Can you hear the fuel pump "prime?"
Whenever you insert the key and put the vehicle in "Run Mode" (Position before you crank the vehicle) you should hear a humming-type noise coming from under the vehicle. Can you hear that?
@@OldSchoolNoe I’m not sure I would have to use starter fluid for it to work. I can hear the pump when I turn the key .
Does this apply to 95 Gt 5.0?
The '94-'95 5.0 should have similar grounds, maybe an extra not shown in the video. I would love your feedback on the engine grounds.
@OldSchoolNoe thanks, Yes informative. Btw.
Thank you for this video (Subs not included) 😂