2004 GMC Sierra 5.3L No Crank No Start Problem Solved!!!

This isn't an ideal solution to my problem but it works for now and works every time. Good Luck

[huckbeduck]

1999 Sierra here, my no start issue was due to ignition switch not sending 12v to the pcm while in the crank position (but only when cold, never had an issue during the summer). I took it to an independent shop, who successfully diagnosed the problem. Shoutout to Denio Automotive in Phillipsburg, Ks! I had them bypass the issue, (instead of buying the correct but very expensive part) with a push button(leave the ign. sw. in the on position, then push the button to run the starter). This was after I had a dealership mechanic(on his own time at my house) replace the intake gasket, because he was "pretty sure" that's what's wrong, never did any other diagnoses. Then I replaced the crankshaft sensor, then the camshaft sensor. Hope this saves someone else some trouble.

[princeharris-otdz]

Pretty Damn ingenious!! I don't know what us gumball heads would do with out guys like you. Not only do you spend your precious time trouble shooting these difficult issues, but you make it even more of a challenge to record it. You Rock! Keep giving knowledge; it's the one thing that we can't take back.

[brianclows]

Mr Rabb. Sir you just saved my trucks life. I had watched every imaginable video and was to the point of settingy truck afire when I stumbled across it video. Thank you very much sir. My truck thanks you as well

[teeodee]

There is a bad ground wire that's on the top of the engine. It's the pcm ground. Basically the fix is to ground it to the firewall. You instead did it at the relay. So myself I'd just keep doing what your doing. There are a few videos out there showing the actual wire wire location

[duronr]

Yet another work-around to our no crank GM pickup issue!.
Thank you!

[johnwesley]

Thank you, trucks been dead 3 weeks while I swapped stuff out. While the jump didn't fix my issue, shoving the wire into the ground position of the relay did on my 2015 2500gas. That got it to turn over, shimming the ground on my fuel relay fired it the rest of the way off. Go figure 🤦🏻‍♂️

[Luta_kicks]

I really needed to see this I thank you so much for this I’m doing it now to my 98 s10 and I couldn’t find the problem and here it is you solved it for me thanks a lot bro

[katherineo]

Ty if it’s not my starter relay fuse I bet u have the answer to my problem. My truck 2001 gmc Sonoma SL is my work horse & im positive it’s not my starter.
After a week no start like you but lights but no click, no noise, no start. Then I go out to check it out get in, turn the key & it turns over like nothing was ever wrong.
Now I’m looking for loose ground to battery etc but nothing. Just replaced battery before 2 yr warranty
I have had electrical problems but nothing unmanageable.
I had one other car way back that I ended up hot wiring the fuse & installing a push button start on dash. Forgot all about it till I saw ur video. Great tip I’m sure to double check it. It’s started every time now but I feel better about knowing WTH ! Old Harley girl 👍

[toddrabb]

Update!! Son just called and the push button no longer works... new battery and the Sierra is back in action!!! He doesn’t drive it much at college and the old battery needed to be replaced.

[roosterpalooza]

Todd Rabb what all goes into wiring the push start button? Do you have a video on that? Thanks

[shoutshouts]

This was the bomb!!! Fixed my issue... Thanks brother

[cristianestrada]

Helps alot checking my s10 first thing in the morning! My starter tested good got new relays for the oem fusebox had it jump w the a screwdriver twice then nothing!!

[kingwheat]

My 02 Suburban just started no crank no start a week ago with voltage meter under 12 when i turn key to on. A few months ago it did the same thing i cleaned the cable from starter, terminal and connection worked fine for 3 months hope its not a bigger issue this time. Build up of oil leak and road grime

[kalanirobb]

Any time I encounter electrical issues with theses trucks and vans I start at engine compartment I take apart every ground strap every body ground I hit em with a file and put copper based dielectric grease on each end. Fixes at least 50 or 60 % of em .there are numerous body to frame grounds on these that are allergic to exposure to road grime. A key ground that I've found FROM BOdy to frame on outside of frame under driver door.

[abefonseca]

Well Todd, I'm having the exact problem, the exact problem on my 2006 Chevrolet Silverado 5.3 liter z71. I've been combing everything in and out of the fuse boxes for about 2 months. I still haven't figured it out. I'm going to look at the ignition switch now, turn the key, and the instrument panel lights up, turn key to start, and nothing happens. It's a good thing I'm retired and live alone. This is not frustrating at all; it's kind of fun.

[toddrabb]

May of 2021 - push button still working like a charm. I’m going to check a few grounds this summer and will update. Peace

[jaminmadman]

Also and don’t get me wrong I love your solution it’s working that’s what counts right? Main Objective get ur vehicle to get you from point a to B right? Yet another thing that happens is the chip in key for some reason another fails to read. By the bcm again remove the power VIa rely. there’s a solution you got a find a video on here I’ve seen it. you can reprogram the chip in the key. by turning the key on and off on and off four times and waiting five seconds in between each step. just a couple little things that I come up with that you might check. Then get that wire off of it and go back the way it was. if you’re ever interested in just checking it out. Great video I liked I subscribed have a great day. .

[robertkemp]

The wire your talking about that goes to the ECM is the signal wire for the relay. The ecm sends a ground signal to the relay which in turn closes contacts inside of the relay. Allowing the starter to crank over. Also you can just cross over the 12v constant pin out to the pin out going to starter. No need to run wire to battery. Either way good enough man

[TimLathrop-pp]

The key has to be turned to start to get fuel pump going. I’m having intermittent no crank, jump hot to solenoid with relay removed did work for a while. It appears that the connection between top of fuse box where relay would plug into and where the terminal blocks underneath are is bad .

[jasonmichaelrosslll]

I have replaced every damn thing in my 2002 avalanche and tried all these tricks nothing works, bought a new brain still nothing I did the 3 10 min resets 20 times security lights off still wont work please help, my trucks been down 6 months noone can figure it out