Installing A New ECU In GM Trucks
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- เผยแพร่เมื่อ 14 ต.ค. 2024
- ECU FIX - Filthy Rich shows you how to properly replace and reset an engine ECU in a Chevy Silverado 5.3L! Watch more How To's: • How To Videos | DEBOSS...
00:06 First Disconnect The Battery
00:22 Removing The ECU
01:15 Don't Lose Your Gaskets
01:36 ECU Reset Sequence
02:09 1. ON for 11 Minutes
02:36 2. OFF for 30 Seconds
02:42 3. ON for 11 Minutes
02:47 4. OFF for 30 Seconds
02:51 5. ON for 11 Minutes
03:18 6. OFF for 30 Seconds
03:22 7. ON for 30 Seconds
03:30 8. Start
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Love the no-filler, all-info format. ❤
Worked like a charm on my '04 1500 with the 5.3. After doing everything EXACTLY as in this video, using a battery maintainer and two attempts at the security relearn I got the truck going. It's awesome having a dash that doesn't light up like a christmas tree. Thanks!!
999⁹00000⁰
I salvaged a ECU for a 98 Chevy Silverado at the junkyard and it actually came off of a 98 suburban C 1500..75 bucks and it installed it would not start but did have fire to the plugs as before it did not have fire with the original bad ECU watched your video went through the process fired right up thanks man For sharing this information
This 100% works. I didn't believe it at first but if you follow the steps it'll work. Saved me a bunch of money I don't have. Thx great vid!!!!
Kenneth L did you have the vin preprogrammed onto the ecu?
@@ljmercedes4635 do u have to? Did u ever find out?
Highly recommend this video it worked for me ! I loved it thanks for the upload
Thanks for video. Used GMC Yukon 2003 ECU from junk yard for my GMC Yukon 2000.Works great.
Im surprised that worked for you but it gives me some hope. I'm getting a U1000 code with crank but no start.
I heard an ECM would need to be programmed with your Vin number or something like that? I guess you found a way around that.
Dropped a new motor in my 2002 Chevy s10 4x4 zr2 and couldn’t figure out what the issue was. I changed EVERYTHING new but it still ran like crap. Took it to autozone to run a diagnostic on there little-code reader and everything that I replaced new was showing bad. Guy there told me I got to reset the computer... so I did what this guy did on this video and it worked like a charm. Truck runs tits and the check engine light even turned off. It did take about 5 minutes of driving to work it’s self out cause at first it seemed to have a little misfire but after a few miles it smoothed out. 👍🏼👍🏼👍🏼✌️
Worked perfectly on my 07 GMC Envoy!!
Follow up on my previous comment, worked perfectly for PCM, but ALSO the BCM! Same procedure in case anyone is wondering.
Can you replace them both at the same time?
@@followerofchrist1961 I wouldn't. It is best to do one thing at a time, so it is easier to troubleshoot if problems arise.
I have a 1996 astro that sat for awhile due to needing a new fuel pump. The fuel pump has been replaced and you can hear it prime. Now it won't start, yet ran fine before it sat. Do you think the ECM needs to be reset and reprogrammed like you did in the video? I'll try this tomorrow to see if it works. Glad I stumbled across this. Thanks!
When resetting the ecu does door have to be closed
This worked for my 2000 Chevy Express 2500 4.3, Thanks for posting!
thank you it worked and i put a fast battery charger on it the whole time because of the daytime running light.. i know i could have pulled the fuse but it was 🤣trying to relearn for the 3 hour try wow😂😂
Thanks Deboss.
Here to confirm it works ....worked on my 00 gmc 3500 hd 7.4 liter(gas) with a ecu pulled from a junkyard vehicle (same year make and model and engine size)thank DEBOSS
Im surprised that worked for you but it gives me some hope. I heard an ECM would need to be programmed with your Vin number or something like that? I guess you found a way around that.
I notice a few say this don't work. First you MUST follow the procedure to the letter. I fought my 2005 Silverado for 3 days. I did this procedure and it fired right up. Don't get over anxiuous. Thanks for posting my Chevy runs great now.!!!
where did you get your ECU from or did you reuse your old one i have a 1999 GMC Yukon take will crank but won't start
David Smith I have a 2005 GMC Sierra 1500 SLT with 5.3L and was wanting to know if you had any other symptoms than it cranking, but not starting?
Also what all is on the ECU circuit fuse, as well as the location of the ECU and the fuses on a 05' 5.3L for it?
What were symptoms of your bad ecu?
Same issue installed new fuel pump, new fuel pump relay, i have spark just cranks. No fuel to shredder valve.
Your one didn’t work for me but this one worked for me
1. Turn ignition on.
2. Attempt to start the engine, and then release the key to the “ON” position.
3. Observe the “SECURITY” indicator light. After 10 minutes the “SECURITY” indicator light will turn off.
4. Turn ignition to the “OFF” position, and wait 10 seconds.
5. Attempt to start the engine, and then release the key to the “ON” position.
6. Observe the “SECURITY” indicator light. After 10 minutes the “SECURITY” indicator light will turn off.
7. Turn ignition to the “OFF” position, and wait 10 seconds.
8. Attempt to start the engine, and then release the key to the “ON” position.
9. Observe the “SECURITY” indicator light. After 10 minutes the “SECURITY” indicator light will turn off.
10. Turn ignition to the “OFF” position, and wait 10 seconds.
11. Vehicle has now learned the new password. Start the engine.
12. With a scan tool, clear any trouble codes.
Thanks nzmopar1992 your procedure worked on my 2004 Chevy Burb 1500 5.3
Wow this computer stuff is something else. There should be a law against this.
F it. Whatever
This worked on my 02 Avalanche with a 5.3 after I changed my wiring harness plug and replaced the ecu with a used one off an 01 Avalanche with a 5.3. Thank you!
I try this but my security light turns off ,it only blinks one then it's gone , any ideas?
Howdy Deboss! My 2003 Chevy Avalanche Base model the ECM died, I have no digital display or instrument readings. I'm considering on buying a rebuilt from Cardone for part no. 77-2605F. I'e been reading all the negative reviews that say you have to take the part to a dealer and have it reprogrammed prior to installing the rebuilt part. Is this video basically the reprogramming (flash) sequence once the part has been installed?
I did this procedure on a 2005 tahoe 5.3 today...didnt work the first time I did this process ...the secound time I did the first step of the process .I watched for the theft lock light to go off .I then quick cycled the key ..on.. off ..on.off fast as I could directly to start and it fired right up....so maybe that will help trick the pass lock system ..it worked for me ...thanks..
So how long did this take you???
will it work on a 2006 malibu 3.5 lt ? .. dope video by the way
great informative video. thanks... i have similar issue- purchased new module today, followed steps in video, 2004 yukon fired right up.
test drove it, runs great, but still have a slight batt drain and dashboard lights do not turn off with key removed. also- turn signal lights on front make the driving lights blink... not the orange ones. thinking bad ground somewhere?
was going to pull all the bulbs and try again to re-create the issue to try and narrow it down? any hints/tips/tricks as to what may be still causing a batt drain? already replaced the following: battery X2, +/- batt cables, ignition X2, pulled and checked starter, pulled entire dashboard off but didn't see anything weird, checked all fuses and relays, checked all mechanical grounds going to battery, all fine... now a light bulb issue with a brand new flashed ECM and programmed it like you said, mechanically, it runs great..
any advice would be greatly appreciated. thanks!
I know this is a very old comment but there’s something called a RAP fuse and it allows for accessories to be on for 10 minutes after it shuts off if it’s burnt it might be the issue assuming you’re still dealing with it
Can u use this method on a 1 ton GMC also
Excellent video I followed each step and it works on my 07 4.3 sil class new ecm
Best video with info ima make one soon be ready hope it’s as useful
Just bought mines from flash masters plugged it in started right up
I've tried this multiple times and I cannot get my PCM to pair. I'm not getting the security light on the dash when I have the key in the on position.
Me either. Ever fix this?
@@MichaelWilliams-ki9kg try to start the vehicle until you get the security light and then leave key in on position and start timer
I would try it again when you're not so frustrated when you get frustrated you tend to forget things especially when your heated you tend to forget things a lot quicker. I would listen to this video again and make sure you wrote down exactly how he said to do it! Then I would double-check it double check it again and double-check it one last time then I would check it one final final time. After you did all that I would check all four of the times that you wrote down and make sure all four of them sync up together. By doing this you know for a fact that everything was written down correctly. Then I would have somebody help you inside the vehicle to tell you when to do the steps it might help. If not when you do it yourself have everything written down on a piece of 🗞️📜 . Then after you have written it down get a stopwatch ⏱️ or take your cell phone out and use the stopwatch feature 90% of Android phones or iOS phones have this feature. Try it again I had the same problem years ago but I was doing it wrong and I thought 💭🤔 I was doing it write. My Girlfriend Told me to RE------------- Check Every Thing . So I recheck everything and I was doing it wrong and I really thought with out a doubt I was doing it the right way. So recheck your work it wouldn't hurt just to try it again you might be surprised like I was good luck 🤞
What does that e c u do? Will it keep the engine from running? When you put a new one own , does it change the odometer? Thanks old big truck mechanic retired
sir I have yukon 2008 5.3
ECU broken .....
can I use new one and sets it up by myself? through same way ?
Thank you very much! I installed my new ecu and did what you said to do on here and got it right! Thank you again!!
Where did you get your ECU
@@davenbuteau9825 i think it was autozone
Does this procedure clear out the VIN? If I use it on my original ECM will I be causing a problem? I disconnected and opened my ECM because I get a message "No J1850 Activity" and sometimes "Reduced Engine Power" on my 2005 Workhorse P42 Step Van. It has a GM 4.8L Gas engine. I opened up the ECM and there was moisture inside and a lot of corrosion on the circuit board between the interface pins (the pins leading out to the two connectors). I cleaned the corrosion off with a toothbrush and toothpick and put it back in the vehicle. I still got the J1850 error and it started once, on the first try (it had always started before I did this). But after that, it will only click a relay. No starter movement.
what advice can you give me for my 1990 silverado 4x4 is it the same procedure? my truck cranks but won't start im sure it's the ecm this has happened before now same problem again the mechanic that screwed me 400.00 told me it's my ecu
I know this is an old video but what do I do for a 2004 blazer? Will this replacement method work
Thanks you so much brother
🙏🏽🤛🏽
I did exactly and my truck still never start
How accurate do you have to be with all of that timing? And what is this doing to the ECu? Thanks a lot."
I have a different issue. U seems smart so figured I'd ask here. My truck is 06 Chevy LT 5.3L. I think bad ecu but not sure. Sometimes when driving itll shoot temp gauge up and down erratically, the computer registers these readings and sometimes throws truck into reduced power mode. I've checked with aftermarket gauge and it isnt actually overheating, and my voltmeter also going between 13v to 15v fluctuantly.. I've replaced temp sensor alternator battery water pump thermostat etc. Shop said nothing is wrong that they can find except overcharging alternator. What else could this be?
did not work for me. are you putting in a brand new ecm or like me or putting in one you pulled from wrecking yard?
my truck is aa 2003 gmc sierra 1500 4.3l the ecm came out of a 2006 gmc sonoma with a 4.3l
mine was from the wrecking yard
I got a new ecu and it's giving me the security Code and reduced engine power? Did I miss something jajaja I'll try this and see if it fixes thanks for the vid
What app did you use for the timer? Thanks
If I get the same Ecu/pcm out of a junk yard and put it in my vehicle will it work as long as I follow these steps?
I have a 2003 Chevy avalanche 1500 z71 4x4, can I use a ECU off another avalanche of the same year and my other question is can I use a ECU from another GM vehicle .
Are these the steps for "flashing in" a brand new ecu or just resetting an existing one?
I need a new ecu installed in my 2006 escalade and I know it needs to be flashed in I just don't know if that's something I can do at home or if it needs to be done with a computer at a shop. Thanks man, nice video.
How did you flash yours
I'm not sure if I missed this but this was a pre-programmed ECU you put in?
For2went ; Hey Man , He never said yet it Had to be pre-programmed or it wouldn’t start.
Yes it was because I saw the check engine light if the Ecm wasn’t reprogramed the check engine light doesn’t show up. I tried many time and it didn’t work, and I don’t have check engine light because I just bought the Ecm and is not reprogrammed.
Hi men ! i"m doing a ls1 swap on a 2002 Astro van! Do u know if I add the extras wires in the LS1 ECM that needs for the control body, vats and the ABS module to be able to work! (the ECM of the van and the LS is the same just programmed different) the ECM of the LS will learning the extras functions if i do this ?
A 1996 b body Chevy need only to swap out the ECM,turn the key and it starts right away,but that’s 1st year obd 2 and it also a x police car with no p.a.t.s.
What's pats?
@@matthewfox1561 passive. Anti-theft system.
Gonna try to do this on my 06 envoy xl witht the 5.3. Thanks
I have an 03 silverado 4.8..doesn't read any codes, drives on and off only on drive shift..think it can be the ecu or the bcm?
What happen to your trunk? did you get it fixed? was it the BCM or the ECU I'm betting on the ECM
After I did this procedure my fuel gauge isn’t reading correctly. Procedure fixed my issue but the gauge isn’t correct. Any input on how to reset it or something thanks
Do you have to do a crank position sensor relearn? I can't get mine to start after doing this on my 2000.
Is the reset procedure the same for 07-13
I'm about to replace the ecm for a used ecm on 2003 silverado 2500hd 6.0 exactly same numbers, do u think I need to flashed before install it? thanks in advance
This procedure should be enough
DEBOSS GARAGE Alright good, thank you for your quick response
I have the same pickup. Did it work?
does it need to be replaced after swapping ecu with used ecu
Yes.
Will this work on a 2000 Chevy Silverado 1500 I would like to know appreciate it
What year was this 1500? I hear you have to reprogram the ecm at the dealer on 2000 and newer. I have a 1996 Astro which will have a non- programed ecm comming in the mail. Will I need to use this technique for my Astro as well? Or since its under a 2000 model, should it fire right up? Thanks! Looking forward to the feedback...
Lol
Thank you, thank you thank you!
Hey man I had some questions about my ECU in a swap I'm about to do if could it would be great
My BB jh bbs bbbbkj. Lookout
Will this work 2010 2.4 terrain? Wont start, key locked in ignition, shifter locked in park, engine light on, steering wheel freely turns. I'm lost on what to do..
Just ordered a new ecm programmed to my vin number specifically. With this process still be needed? Thanks
Hey, did it work with the new computer, with out doing this reprogramming process?
@@sidneymeyer9014 it did! But you still have to connect the ecu and motor together with a relearning process. Like turn key halfway on and off for 30 seconds type of thing. Super easy but it’s not plug and play
@@casiokids91Did the seller give you the procedure?
@@MyLifeThai371yessir
Just for future reference I did not understand your reply do i to use the tech 2 scanner to reprogram the computer for it to start
Wad this a pre programed ecu? Or did u just get one and throw it in. I need to know before I rip my out and fuck my stuff up lol
Uhhh... currently in the "fuck my shit up" stage!
I'm stranded at Pep Boys with my 1997 GMC Sierra 3500 pickup truck in Hollywood California store number 0 6 0 4 they changed my fuel pump a month ago... it went out .. fuel pump relay was loose I'm back at the store. They tightened up the relay connection behind fuse box now. I think it's throttle position sensor they're planning on changing currently the entire tank pump unit and the motor pump instead of as they did previously just a pump motor only. Initially old pump with 7 lb and then new pump was 7 lb. Deemed by chance defective. I don't think so. Service engine soon light started coming on after difficult start with starter fluid then light turning off after a couple hours while driving.. with subtle occasional dropouts of motor while driving... until I wound up hear back at the store. This is just a trivia puzzle for someone interested... of course they can't figure it out with admission yesterday . .one of the managers.. hopefully Pep Boys . They just won't listen to me.. possibly understandable.. I'm not showing them my Grassroots degree in my hand... this is Fiasco as I lose money without my truck.. I'm trying to transcend vindictive energy. Just want my truck running.
Hast thou achieved transcendence?
Will this work on any gm auto? I have a caprice 1996 with a no start condition
Just tried to do this on my 2000 box sierra and the truck starts and dies. Will a ECU from a 2002 chevy work if put in my 2000 sierra?
Hi I did this and it worked great but after a week I have to do the procedure every time I use the hummer. What should I do.
Are the computer expensive...was just told by mech that the computer on my 05 envoy denali was no good that a new one would cost 1200 and 150-200 to reprogram.....
There's a guy on eBay, who sells refurbished ones for about a hundred. Also, AutoZone can get it, but it takes a week.
@@lengua199Yep. And the ebay seller will even preprogram your vehicle vin number in the ECU for you for free.
Quick question, if I take a spare ecu out of my parts Colorado, both the same truck. With the truck receiving the used ecu come up with the other trucks Vin number when plugged in for inspection purposes?
Probably, but usually it's not an issue. Only when it's a much different VIN number, the shop can get into trouble, because the DMV will think they are using a different car for the emissions. My friend used to work for a shop, and he told me if you want to use a different vehicle for the test, it has to be the same make, year and model. That will pass, of course!!!
I have a question I just changed the PCM in my 05 Silverado did the security relearn now the truck cranks but gets no spark my main question is do I need to have the computer Vin programmed to the new computer in other words do I have to have the computer program to my vehicle VIN number please help
+Mr no it all u heard The truck needs to learn the new ECU. You can use EFI live to force learn the ECU but this procedure should work. How many times did you try?
Does this work to program a different cluster on the truck ?
Tankyou very much just did it and it works.
I have a 2004 tahoe. One day I was driving and it completely turn off, the stearing wheel got hard and breaks also. Try to turn back on but no response. The truck wont crank and has that theft lock on the dash everytime I put key in ignition switch. Do you think it has a bad ecu and may have to switch it?
Did you figure out what happen to the Tahoe ? I have an 2003 same with mine stalled out Theft deterrent came on.. Dealer charged me 700.00 for key ignition switch, they say they dont know whats wrong.. I changed a few senors but after reading it may be the ECU but then again it may be the BCM Body Control Module Now I'm leaning toward the ECU wondering how you are doing with it..
What about a 4.3 silverado 2005
On the procedure on off the last on looks to be 30 seconds is this correct. Also maybe going a bit fast for us mentally disabled that it was actually 11 minutes on the 2nd on .. maybe that went a bit fast kind of a critically important part of this. However life-saving technicians are very valuable.. commendations..
Was your ecm pre.flashed? Or this process will relearn?
I just did for Yukon 2000 got ECU from junk from GMC Yukon 2003 and follow his video .Works great.
Will it work if I swapped a used ecm, same part numbers but different programming. I.e the truck had 4.8 and I'm putting a 5.3 ecm but with the same part numbers? Or does it need to be a 4.8 ecm?
I have the same question. Did you have success with the ECM from a different engine size?
Will this work on a 05 Colorado
This didn’t work for my 2000 Sierra. You have to try to start the motor every time when you go key on. But same procedure 11 minutes and then 30 seconds. After those 3 cycles it will turn on
I will be trying this tonight on my 2000 Sierra. Same thing just turn the key all the way?
dude you just saved my ass I did this on a 2000 Chevy Silverado 1500 and it work appreciate it
I wanna replace in 2001 Tahoe 5.3 what pcm can I use and will this method work with no trouble codes
Very good friends. Could you help me with my chevrolet TAHOE 2007? I changed the neumatic sensors air and need that the computer car read the news. Also I need reset the computer (is the same, the original, but have some lights on). Thank you very much from Venezuela
I think by neumatic sensors you mean the tire pressure sensors? I was told that only the dealers can make them talk to the Tahoe. Any code reader can tell why the engine light is on, you don't need to reset the ecu
Did not work on my 2012 - replaced Engine fuse assembly and truck will not start , but all problems are gone ... suggestions ?
Deboss where are u located need new motor put in my 07
I have an 05 tahoe. It throws codes for the solenoids in the transmission, i replaced all the solenoids. Wiring harness is fine. I can clear the codes and itll drive fine for a day then the next the codes come back and vehicle drivability goes down. You think i have a bad pcm?
@nuff said did you figure it out?
@@josuebarron3278 yes. I replaced the wiring harness for the transmission and the wiring harness for the transfer case. It was bad wiring, the truck is old and the copper was oxidized causing bad grounding and broken wires and restricted flow of current to solenoids.
This is with a new ecm with no vin in it or a used ecm with another vin it
Will it work with a used ecm?
Used ecm
Your a Life Saver . It worked
How come you didn't have to reprogram your ecu? Will this work for a 05 Nissan quest?
GM's are a little nicer to work on than later model Nissans. I did a Murano once but it is more involved and it was a long time ago. Best to hop on some Nissan Forums
We have a 07 silverado,replaced the starter,it started 1x,then we're told it was key issue,that has been ruled out,Now told it is computer and only dealer can program. But we see this post,has anyone had success with this? Or we need a dealer?
Ok cool. Yeah because my 08 Sierra don't turn on and was told it might be the ecu. Fuel pump works there's park. The scanner said it was the fuel pump and another buddy's scanner said it was a short circuit. I ran out of ideas maybe you can help. Ok so when I put the key on the ignition and do the 1st turn it automatically cranks without me trying and it stays trying to start but never starts. I have to remove they key in order for it to start. Any ideas. It sounds like it does wants to turn on but it's just steady cranking
My brothers truck started that way but the starter quit after it was running. My Tahoe does it once and a while. Usually after I wash it. I would start with checking your battery. If it is older than 4 years, change it. Clean all your grounds and battery clamps
Will a remote start interfere with this process?
Could you tell me how to install ECU for Benz W221 M273, if available?
Will this work with a used junkyard ECU?
Justchanged moter in 2007 gmc truck got moter out of tahho having power prblems will this help
does this process take care of the flashing
I wondered the same. What did you learn about flashing dash?
Will this work for a ECM on a gmc 1500 2008?
Hey deboss
I have a 2007 silverado 5.3l
And I have the cts2 programmer for more torque
And for some reason the programation crash and the truck now don't start or crack
Do I have to reset the ECU ?
PLEASE help me
From Florida
RICARDO ROMERO sounds like it bricked the ecu
After I start the process and I cranked the truck over and it doesn't start. I cut the key off and turn it back on but I don't have a security light. I've tried multiple times and can't get this to seem to work
hey man im doing a 4.8 swap on a 240sx the thing is when i bought the engine it came with no ecu nor harness, if i get any ecu for this engine and the correct harness... will this procedue might get the car running?
No. You will have to use EFI live to change a whole variety of things to make it run. I am doing a couple LS swaps soon and am just getting into them. Keep watching for the videos.
@@DEBOSSGARAGE will this programming work on a 2015 express 6.0l also or it's to new?
Thanks for the valuable info. I bought an 03 Chevy z71 that wouldn't start before trying this .
I ttried this the first time and it did not work. Finally after the second try the engine started.
Every time I put the vehicle in reverse or drive it dies. Do you know why?
Hello there, was this a brand new out of the box ecm? I have a 2008 express 6.0 gas, would this work for me? Regards
One from a wreckers. This should work for you
@@DEBOSSGARAGE I have a P-30. A pin was broken. I sent it back to get refurbished. When I got my ECM back it still didn't start the truck. Is there something else that has to be done before it will start the truck?
Did this procedure may work on a 2011 silverado 6.0 ?
Dominic Labelle wondering the same thing but for my 15
@@derekwu3256 2015 and you have ecu problems already?
mr freeze same symptoms but I can’t verify now.. done sold the truck.. spent 2300 in parts from previous pos owner use and abuse on it
So how did you get rid of the engine light????
I need help I changer out the ECM went to do the key sequence but it does even roll over now. And the check engine light is flashing. What did I do wrong