2003 Tahoe Loose Ground Wire causing ABS, Park Brake, Door Locks, AC, issues
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- เผยแพร่เมื่อ 6 มิ.ย. 2018
- Brief video showing the repair for a ground wire that has come loose or corroted and broke off. This could cause intermittent electrical issues triggered by hitting a bump in the road.
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This fixed the symptoms described (ABS, Brake light, door locks, temporary loss of power when going over a bump) on my 2003 suburban 1500. Thanks for the video, I suspected G103, but was having all kinds of trouble locating it. The ground wire popped off as soon as I pulled on it. That wire is supposed to connect to a stud on the back of the engine, but the stud is difficult to access, and using the body ground instead as you show was a great suggestion that got me back on the road quickly.
Thank you so much, my car was becoming underivable and this youtube video feels like it revived my car. It feels brand new thanks.
Thank-you so much!! I went on a fishing trip 600 km from home. We towed our boat to the lake. At the lake we hit some potholes and the symptoms you described happened. The engine died many times on the way to the cabin. It got to the point where my 2003 Tahoe would not even crank. After a whole bunch of troubleshooting I finally gave up and was making arrangements for a tow truck (300 km tow paid by CAA), my son was going to take off work and bring a flat deck trailer to bring it the last 300 km from home. Another friend was going to bring his truck to pick up my family and boat. I saw your video and I fixed it as per your instructions!!! It saved me so much trouble and money! If you are ever in Alberta, drop by, I owe you a refreshment! Thanks again!!
Im having the same exact problems. I've been through the fuse box and everything. Then i decided to watch a few videos to figure out what was going on. After a month of searching and having problems its finally fixed. Thank you for the great video.
I can’t thank you enough for taking the time to share this. Been having the same problem for months. Drives great sometimes until the locks start going off by themselves and I lose power/acceleration. I have a 2003 Chevy Tahoe as well. When I finally came across your video last night I went straight to my mechanic this morning and when I popped the hood and he reached in there he pulled out the same wire, just dangling. He did exactly what you did and my truck runs beautifully! I knew it was something simple, just didn’t know where to start! Thank you, thank you, thank you!!!
I had the same problem 03 GMC Yukon 1st I clean the under the driver side cleans with a sand paper and now I just did this one just like he said it’s there just welded to the motor block on the back side 2/3/22 I’ll keep you posted in a couple of days hope it works thanks .
@@djcarlos52it’s been 10 months did the problem come back after doing this? I’m assuming it fixed since you haven’t responded.
Had one in my shop I searched TH-cam ended up here and tugged on the wire and it practically fell off. THANK YOU SIR!
2003 Chevy suburban 🎉🎉🎉 thank you so much for this video!!! I was ready to get ride of my truck that only had 82,000 miles. Every time I would hit a bump my car would loose power
Great & Valuable Info! Thank you SIr!!!
After new ABS parts and checking all the ABS sensors on my 2003 Suburban, my mechanic and I could not figure out why ABS lights were on and all the warning bells were being triggered. Well, I was scheduled to go to an electrical auto shop this very morning, but last night I saw your video and this morning I copied what you did. Bam, Wam, Slam! It worked!!!
Furthermore, I found two loose ground wires under frame area driver's side (one under driver's door and one under the headlight area that is connected to the battery negative cable). Tightened them up & also put new terminals on ground wires on top driver's side near hood.
Thank you & I thank the Lord for you.
My car started with it going into reduce engine power mode every now and then for a few months. Until one day it started doing what your car did and then finally quit that afternoon. Most of the stuff I read pointed to a bad bcm so I replaced that and it still didn’t work. I checked a few ground connections that I could locate and everything looked good. I gave up and was literally about to call a mechanic until I did one more google search and found this video lol. It was still connected but when I tugged on it. It came right off. It was corroded really bad. I did exactly what you did and it worked. Thanks for making this video. You really helped me out a lot.
I wish to express gratitude to your for this fix; I traveled from the rockies to the east coast and had this issue when I arrived there needless to say the mechanics were stumped and about to send me on my way until I saw another TH-camr with the same issues, she intern shared your video and I zeroed in on it at the garage then boom! it kicked over; thank you friend. it was a great help!.👏
05 Tahoe, same issue. Followed your video and my wire was broken, I think it was just making contact with the block. I fixed it using your method and it worked fantastically! It was the ECM ground wire and its all good now. Thank you
Thanks MP Contracting, fixed the problem today.... Saved me a lot of money!!! Greatly appreciated!!!!
Thank you for going to the trouble to put this video together. I appreciate the help.
Finally found this video after months of searching, thank you!
I have a 2003 Tahoe 4.8L 4wd and have an issue with lights and security system which I was not able to start the vehicle at intermittent times I found out that there is a Ground wire behind the drivers side engine that runs to the negative lead of the was partially worn and gave me issues, I re-ran a new ground wire and works great it fixed the issue! Also the silver braided ground wire on the fire wall must be checked ! Thank you for the excellent video !!
Thanks you sir for finding out what need too be done to fixes this problem had the same problem for a couple of weeks and been driving my truck less everyday because of this problem I did exactly what you did and everything is back to normal thank you for posting this video help me not getting rid of my truck and buy a new one lol
HELLO! TOTALLY FIXED MY PROBLEM SO FAR! DID THE SAME THING YOU DID. THE CHECK ENGINE LIGHT EVEN WENT OFF! THANKS MAN!
2003 GMC YUKON DENALI 6.0 AWD- ABS/BRAKE/ TCS LIGHT AND CHECK ENGINE LIGHT WAS ON FOR SOME REASON. I did clean the abs sensors up front though. :)
Thanks just saved my parents some $$ with your video
I just wanted to thank you as well I watched your video after having the same symptoms did the repair and Wala problem fixed,thank you so much!!!
For further clarity, this ground wire goes into your instrument cluster (A8). I actually just grounded mine to the steel "cage" inside the dash and that works just fine for me. But I also had a bad A9 connection, which is a constant battery positive. So I ran another wire straight to the red box in the engine compartment and spliced that into A9 and my gauges work again. Hope this helps others. I discovered there was an issue by checking voltage between A8 and A9. I also did a continuity test between A8 and ground and that's how I found _that_ issue.
Thanks for sharing this video it helped me fix my suburban
This was perfect! Helped me out alot after replacing parts left & right.
Thanks for the video. This was my exact issue. Super ease fix.
I’ve been having the same issue. Thanks for the video.
Same symptoms, same wire condition, same repair. Thank you!
Hey your video is awesome it work for me
Thanks saved a lot of testing check your other grounds also the wire can break inside at the connection crimp but you can't see it from the outside and the ground connection looks good but its not .I use shrink wrap over butt connectors to stop connector corrosion thank again
I have the same problem with my 03 yukon first I cleaned the ground wires underneath the driver side seat but the didn’t work ( as I saw in another video ) now I did it this way , the wire is welded to the motor block on the back side . I put the two connectors just like this video and I hope it works . I’ll keep you posted in a couple of days if it works or not I gave it a test drive and it didn’t show any lights so far 2/3/22 crossing my fingers .one more thing as I was doing it my truck didn’t turn on and once I did it the truck turned on again .
Update: nothing works for me the abs/ brake light keept on coming I found out it was my abs module so a bought two different ones from eBay and now the trac light stayed on but the abs/ brake light turned off . I found a place to fix my original abs module and problem solve and cost me $125 no more abs / brake or traction light on it tcost me $ 125 I have 03 Yukon
In GM speak, that’s your G103 ground. It is the only ground wire for your ECM. (All Underhood grounds are 100 series) You’re lucky it broke off. If you were going to remove the 13mm bolt to clean, the only way to do it properly is to remove the intake manifold. The ground must connect to the engine block but you’re achieving that by mating it to the braided G107 strap.
this is a man who knows his stuff
QUick question PLZ... On that hood-to-body ground that breaks. (not the subject of this video).... How important is it.??? At first I was just thinking why the hell would someone need to ground the hood??!? But I am starting to wonder if it does not serve as some sort of "Bridge" across front quarters to even out vehicle electrical system ground RESISTANCE and now wonder if its critical to any negative switch feedback readings.??
@@shillpolice7981 I need to know the same thing
From my understanding the ground going from firewall stud to hood serves as an antennae type of ground. It evens out and spreads the grounding of certain components as to eliminate frequency. Perhaps if you've ever heard the buzzing from the small round grate above drivers head in 99-06 tahoe/yukon etc also cleans up radio signal and also helps with the passlock and other crucial communication circuits to avoid feedback. My guess from the spark plug wires voltage resistance maybe alternator whine, etc. This is just my understanding
My radio, ac and right side of the cluster go out then come back. I’ve gone over all the grounds I can find. Can you tell me what location controls that issue?
I had same symptoms, at first I thought it was the ABS module, by luck I found this video and checked that ground wire, literally fell off in my hands. Attached new ground wire like shown in video and no more ABS or Brake lights.
I’ve done this and it worked for awhile and returned as of now I’m battling with the low power issue. I’m avoiding replacing the actuator but that may be the answer. Im going to redo the grounds again and see what happens.
Extremely helpful 👍
I AM GOING TO GO CHECK IT OUT! THANKS
I have a 04 Tahoe the check engine light cuts on but it goes off once I get a jump off plus my dash light comes on and off and I think something might be wrong with my fuel pump also it only crank if it’s on half or full
Holy cow. My 2004 Silverado, Years, I mean years of having this same issue. I replaced so many sensors, brakes, and even my wheel hubs with new speed sensors. Now I know the previous owner had same issue because I have always, since 2009, had this display come up and no door chime, means chimer got pulled out..
Thanks for sharing worked for me! 04 GMC Sierra 2500 👍
Is it in the same location on the 6.6L?
Hood to chassis ground make sure that's good also. For some reason it matters
I tried it but use speaker wire I used for my sub would it be better to use the 16 gauage wire like u did
So did this fix the abs and brake light problem...Im having the same issue
JC R old turd didn’t do shit! And he was scared to switch the LED’s to white! He said all the guages worked again 😂 I plugged it in and it looked the same, no wonder he didn’t charge me anything... I think it has to do with the actual BCM I think it’s called? It’s under the steering wheel and it’s kind of like a mini brain for the truck. My speedometer works plus I have an aftermarket “Digital” speedometer which calculates the miles amd that’s what I care about the most cause then I keep track of my gas 😉 I messed with some soddering and fixed a few more LED’s but that’s all. Go on Instagram and look up “gmguagerepair” or google someone local to you
Could this wire being completely disconnected cause the truck to completely lose power?
While at a stop light my 04 kept wanting to bogged forward even when foot was on the brake almost like stuttering to go forward to where i almost bumped the car in front of me, same thing when i put it in reverse to park? Any idea of what this could be ?
Can it cause the traction control to kick in while accelerating from a stop?
So does the ABS work when the light says it should be (when light is off)?
And this video reminds me of something else I need to do. Find and remove that chime, set it on the ground, and run over it about a dozen times.
Milk Manson that’s funny the chime annoyed the hell out of me found the box and took that out and threw it out the window. I did have peace and quiet until this weird roaring noise started happening. One thing after another
I have a question, I found that wire but it’s located on the drive side, is it the same wire?
Would this make my drivers side rear door unable to lock?
When I turn my key my Silverado won't crank. The headlights, radio and cluster work fine nothing dims I need help. The only ground I found loose was the one connected to the rack and pinion
2004 Tahoe I have same issue but my battery gauges drops and goes back to normal could this be the same issue???
Will this allow the battery to start on its own after fixing the negative battery connection? Or will I still need to call for a jump?? My battery died trouble shooting this lol
Thank u helpful video
My 04 Silverado shut off doing 55, and now won't even start, but is showing the "service brake booster" randomly, and also won't prime the fuel pump even though it's a new pump. Also randomly won't even turn over. Going to search for this loose ground. 19-year-old truck, hoping that's all it is. Everything else has been replaced within 6 months.
Was that ground the problem or a different one? I have an '04, Z71, Burb and did this same fix.
I tugged on that same wire and seems secured, could it be that it seems secured but just not making good contact?
Same thing 4 me
Did you guys try this method?
Only GM can persist making the same mistakes decade after decade and stay in business. I had a '76 Chevy van and was driving down a road past a K mart around 1984. The engine quit and would not restart. I kid you not, the mechanic at the K Mart yells out from across the street that he knows what's wrong and comes running over with a length of wire. Tells me the ground failed and in 1 minute had it fixed. Surreal experience. Now I have a GMC Pickup truck with a ground problem that makes all the gauges flatline. Where is that kid with his hunk of wire? Guess I have to do it myself this time. :)
Update nothing from YT help, I found out it was my abs module. so I ordered 2 different abs modules from eBay and they didn’t work but I found a company to redo my original abs module and no more abs / brake lights on fix the problem for $125 in have a 03 Yukon
Good evening. Just a few questions for you GM mechanics on the page. I have a 2006 Sierra. All my cluster lights and gauges are irratic at times, battery light on (alt and battery test perfect) have now lost my tow capability, power door locks and windows, but truck runs fine. Could this ground be the cause of all these electrical issues too? Any help would be much appreciated. Thanks
Bro I am currently dealing with the same thing you are! Im usually pretty good with auto electrical stuff but this issue has me stumped!! O4 gmc sierra 2500
@@stevethompson5092 I work in an automotive shop but am an import (honda/mitsu) technician lol. I know GM had a lot of electrical ground issues on the 2004-2007 GMC and Silverado trucks. I have been stumped on it and have cleaned all the grounds and it will fix for a few weeks and then back to the same issues. Hope i can figure it out soon. Thanks
@@EricEveritt516 I have an 09 silverado and pretty much doing the same thing. I cleaned the grounds and was fine for about two weeks but now it does it worse than before. Happens more when I use my turn signals or switching from high to low beam and sometimes wanting to kill the engine. If you figured it out please reply back.
@@stevethompson5092 same here I'm a retired GM mechanic and I always got the electrical problems and fix all that was handed to me but this 04 GMC has really had me pulling my hair out I'm not giving up and I will concur it one day every time I put the key in I sit there wondering what's it going to be today!!!
@@jonperley7304 any fix, yet?
Holy shit we have the exact same radios... but I replaced wheel bearings in the front speed sensors got power in the loomz etc only thing left is either I’m missing a ground strap somewhere or my abs pump is shot at 90k miles
Wow, that sounded like the Self Destruct warning.
My speedometer bounces up and down or will stay at zero when driving, I've replaced to speed sensor and its still not working the abs still says on too
GM gauge issues are usually a stepper motor on the instrument cluster itself.
when doing this repair on the ground wire, do you have to disconnect the battery or anything like that?
No you shouldn't need to
don't you still need a fire wall ground to engine ground ?
Did it solve the issues you were having?
You didn't say so in video or in video description
Where does that wire strap go to where you attached that little black 14 gauge wire to? My wire strap burnt and I don't know where it connected.
Behind the engine block. You have to lay on the engine once its cool and look directly behind it and you will possibly see it sticking out like I did.
Does it have to be grounded there? If so just get to it from topside?
I have a 2003 tahoe. My gauges don't work, my mirrors and seat adjustment on their own etc. I was told it's either blown fuse, bad ground or instrument cluster. I'm going to check fuse and ground first. Also none of my gauges work. Speedometer, odometer etc. I'm no mechanic but trying. Any help?
I just had my cluster rebuilt and my speedometer still doesn’t work but I looked at my rear view mirror and saw my outside temp and direction going crazy so now ima check my grounds
I wonder if the 07 and up trucks have the same wire?? As soon as mine gets back from the shop I'll take a look 😂🤣. Having similar but different issues and I'm thinking what the mechanic is fixing won't actually fix my issue. Lol. I'll post back later
I have an '05 and I can't find that wire on mine.
What is your issue??? My truck just dies and sometimes it’ll start and sometimes it won’t. Make the service air bag and service 4x4 come up on the cluster. I can shake my wiring harness and it starts. It’s also kill all power to my obd2 plug when the truck dies.
@@brandongrant5343 bro im having similar issues now I hate when they don't say the answer to the problem when u ask
@CJ Tha God my whole engine wiring harness and fuse box ended up getting replaced. Someone prior to me sauderd like a 3” wire in and the sauder was causing a blockage in communication. Even worse, warranty wouldn’t cover it and I didn’t even do it!
I was having the same problem and re grounded the wire on the back of the engine block and problem completpy solvee
Can’t seem to find dat ground wire anywhere
DId you try to start it after the wire broke loose?
I broke the wire by lightly pulling it. Now my car won't start period. What do I do
Was your Voltage dropping to about 10 on the dash also with this problem or it didn't affect it mines runs fine but my voltage drops to almost 10 on my dash when i at idle with my ac on and front and back AC i just upgraded to a 220 amp alternator from a 145
Did you find the problem and solution? Mine is doing the same thing!
@@garyschwalm4842 ni t yet doing a big three upgrade this weekend and getting agm battery replacement for my crappy O'Reilly's brand
Will it fix the service brake booster and service 4wd??
Did you fix 4wd light I have same issue
My 04 sierra does the exact same thing but says engine reduce power and stalls out, and won't crank back over till it cools down some, I've noticed it only does it when it gets around normal running temperature. Any ideas that might help?
I've seen a video where this ground wire fix did fix another guy's. This flippin ground wire causes alot of probs. Did you try it?
If the ground wire fix doesn’t help, Check this out: m.th-cam.com/video/2SCIRSBejA0/w-d-xo.html Particularly between min. 17:50-20:50 for easy diagnosis of failing fuel pump with a multimeter. PO 300 obdII engine computer code implicated as well.
Also possible signs that uoupl be replacing crank position sensor in the future it will start and stall randomly, then more and more then over and over time you get so pissed youd wish itd run just 1 more time, just long enough to ram the truck full speed into the side of a boat, going up and over the boat mangling driveshaft but correcting the sensor issue
i have abs light doors locking and unlocking
Si no hiso la prueba al final quiere desir que la Luz siguio prendida
Entonses no lo agas y asi de fasil
Why not find a place on block to ground to ?
my 2006 chevy colorado hit a pothole and now the ac will not come on
This wire was grounded to the block. Why would you ground it to the body? I grounded it to the body and it didn't help my problem so I will move it to the block and see if that works.
FSCM.
???? I didnt move it and try yet.
Check the Fuel System Control Module.
The truck runs fine. Just abs and brake lights are on and tack wont work either.
The fscm sends signal to the bcm and all other modules. Due to its location under the bed of the truck it is prone to corrosion. It's a simple check. Unplug it and clean with contact cleaner if a simple pin out is too much to do. Let it dry and reconnect. Worst case scenario you still have an issue. Or do nothing that's fine as well.
Anyone know why on a 1999 obs chevy tahoe none of the gauges work except the tachometer, I replaced the cluster and same thing
Where you able to fix it? I have the same issue
@@marcoslupio8009 unfortunately no, I've just learned to drive by watching the rpms so I know how fast I'm going and making sure it has plenty of gas
Does it have a circuit board instrument cluster? Could be bad solder
I can’t see the wire on my truck I don’t think it has one
If it comes from the engine block... why not reattach to engine block?
He’s attaching it to the firewall ground point that has the strap that goes to the engine block. So in essence he is attaching it to the engine block the way he did it
My abs, service 4wd, and air bag would come on. Plus my speed control on my AC quit working. I’m gonna try this and see if it works or not
Did it work for you? Same damn issue with mine lol
I have an '05 and I can't find that wire on mine.
I have 4 cluster motors not working, abs, and brake light on
Anthony Butterfield i have the same thing any changes on that ?
@@joshuabustamante7894 did you ever figure out the issue I'm in the same boat as you seem to be
My windos go up and down and I can't figure that out
Will this cause a parasitic draw?
No. How would attaching a ground connection cause parasitic draw? It won’t
All gm models. My Cadillac did the same thing.
also on my cadillac, the rear wiper sounds like its on
Did this make your truck not want to shift when abs and parking light came on
Sorry for the delay in responding. To answer you question, I did notice that at slow speed when this issue occurred the truck did hesitate for a split second, but i did not notice any shifting issues. Thank you
Check your speed sensor in transmission not hard to replace
Shad Lo yea i had same issue and yea the transmission would shift roughly around 2,500rpms it was having issues i cleaned all my grounds the one mentioned in this video and the one underneath the driver aide and by driver side front bumper and that took care of the issue
@@tattooart420 how do I check or replace this sensor? And what's the part I need. I have a 2093 suburban 1500
I did that and it it's still on
My battery comes on
I'm getting to the point of ignoring the lights.
It’s the ground for the pcm
I love my Tahoe but the electrical problems are a huge turn off, lol I’m super Frustrated.
They're not bad
@@JamesValentineBaja1000 IMO they are very bad. I've owned many vehicles and have absolutely never had as many electrical issues as my Tahoe AND Silverado 2500hd have. Headlights go on and off randomly, cluster flickers, ABS light, o2 heater core codes, multiple corroded ground cables, check engine light goes on every time and prevents passing inspection until I find and repair the problems. I do like the vehicles, but its maddening to find these electrical issue solutions.
Faciane videos
It looks like shit though
Terrible Video!!!!!!!! so I need to look for a random wire????? and ground it?????
That's right lazy American. You're gonna have to 'do something'.
@@brianwright1901 lol..as a senior female, I found the dang wire...lol I will say I had to clip mine as it wasn't broken like this one.