SIMPLE!! Crank No Start fix - Chevy TBI 5.7L 350 SBC
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- เผยแพร่เมื่อ 18 พ.ค. 2022
- For a year my 1988 GMC Vandura with a 5.7 TBI would crank but not start. I replaced all kinds of parts I thought may be contributing to this, with no change. Finally out of irritation I climbed under my van removed the main ground cable that comes off the battery's negative terminal and bolts to the bottom front of the engine block. I took my Dremel & wire brush to the connector and bolted it back on... after one year of not starting, a 30 second "clean up" and my van started up on the first crank.... moral of the story, start with the basics!
The grounds for the TBI & ignition actually bolt to the rear of the passenger side cylinder head. It’s difficult to see in pickup trucks but a van with a dog box will be easy to see. I’ve seen numerous running problems because they were corroded or loose. If they are bad you can get intermittent bucking,stalling, and if it has a 4L60e transmission you can have shifting issues also.
That's a great tip. I did not know this!
maybe that has been all my issues all the lone.
Mines bolted to the intake was running but not no more can’t get it to start
I'm having bucking issues. Nobody seems to know what's causing it. I'll check that out !!
@@elainec2577 Have you replaced the dist . module?
This guy is a total Genius; he’s bringing the Good America back. Each One Teach One Son😎
Haha thanks brother! Gotta keep the G-vans and the good vibes alive!
huh? the "Good America"????? wht in the name of fuck are u talking about???
Where we know how to do things instead of paying other to do them for us. Teaching the youths not to be useless but useful. Bringing positivity amongst each other instead of being pests like mice 🐭. However; I digress. Cant wait to get the parts and have my sons help me set up this one belt system. The eldest already claiming the Monte but the youngest putting in the most work🤭
It doesn't hurt to add an extra ground also. I cleaned all the grounds on my van and added an extra one haven't had any problems.
My brother used to have a saying that I kind of try to live by its "Look for the cheapest thing first...".
Another one of his sayings that I liked was" Slick is slick".
Oh that is a great point! Are you just adding a ground cable from this same bolt on the engine block? Where are you attaching it on the frame/body?
Thanks bro, that helped. Your van is sick!
Oh awesome! So glad it worked for you! Yeah unfortunately I had to let this black van go, but I still have my white/orange 87 Chevy G30 that's in my other videos. Just got back from camping in it last night!!
Thanks for making this video!
Hey thanks for watching! Hope it was helpful!!
Good fix sir ...nice van as well
Thanks so much for watching!!
Same issue on my 88 g20. People, don't forget to disconnect the battery before trying this.
Yes, good point 👍 thanks for watching!
Great video Sir. Thank you.
Hey thank you so much for watching! Cheers!
Thanks and good job. I will try this as soon as the sun comes up.
Awesome! I hope it helps!!!
@@kampinglogik Okay, did it......... it worked!!!! Got the '72 C10 back on the road. Thanks so much for the info. God bless and thanks a lot!!!
@@michaellingo640 Oh my gosh that is awesome!!! So stoked it worked for you!!
I owe you a HUGE thank you. Just bought an RV that broke down 30 min down the road after many expensive issues getting it home I tried this first cause it was doing same thing as your van and it worked!! As a single female who can't afford to pay a mechanic I thank you 100000x over cause no one else thought of the battery ground 🫵🪨
Oh wow!! This is so great to hear, I am so happy the video helped! Sorry for the earlier struggles you had with the RV. Once you get it running right, it will be so solid! My "other" van is an 87 Chevy G30 conversion van that I have taken literally coast to coast (towing a camper) and all over the country during the past 6 years, it has been so solid and we have never been stranded! You will love your RV, I'm sure of it!
I’m having the same issue randomly today, I’ll check the ground when I get home. I’ve definitely overlooked checking the ground on other projects because it seems too obvious and everything’s probably fine so it can’t be the ground, way too easy.
It’s usually the ground
Hahaha yes exactly my thinking!! Look for 100 hundred other possibilities first... its the ground... well I hope that is in fact the case for you
@@kampinglogik yep! Got home, my ground was in the exact same spot and just covered in gunk, cleaned it up, still nothing, checked the battery connections and they were fairly corroded, wire wheeled em, BAM fired right up!
@@searchingforsalsa oh man that is awesome to hear!!
Thank you bro found out it was the battery ground.
Epic so glad it helped
I have a 1999 Chevrolet p30 Workhorse 5.7 350 Vortec (Step van) 🚐 & I’ve been trying for 2 years to figure out what’s wrong with it. After watching this video I will look 👀 at this today. I know it has some wiring issues. I’m located in Macon Georgia & a good 👍🏾 mechanic is hard to find!
Any update
Awesome tip. Thanks!
Anyone has the chart with all those ground connections locations?
Try this link. I just search it in the images section of my browser duckduckgo.com/?q=chevy%20g20%20van%20ground%20diagram&ko=-1&iax=images&ia=images
I have a 1995 chevy silverado C1500 with tbi 350 5.7 and it will not start unless i hold the key in the run position then it will start i think i will try moving my ground because its on the intake and i dont think thats a good place for it because the intake is aluminum and i wouldnt think thats a good ground. What yall think?
Brutal van, I have an 87 Chevy v10 5.7 tbi with hot hard start. Do you have any ideas?
Gonna look at mine tomorrow. Have same issue. Except, mine also randomly dies while driving. Spent a fortune in towing charges.
Yeah, could be contributing to the problem for sure. There are a couple other ground connections on the body too. Just search for a ground diagram for the van model.
Not sure if you saw the pinned comment - but another viewer added this tidbit:
"The grounds for the TBI & ignition actually bolt to the rear of the passenger side cylinder head. It’s difficult to see in pickup trucks but a van with a dog box will be easy to see. I’ve seen numerous running problems because they were corroded or loose. If they are bad you can get intermittent bucking,stalling, and if it has a 4L60e transmission you can have shifting issues also."
@@kampinglogik just had the transmission rebuild less than 5k miles ago. Maybe the shop missed a ground or loosened something up.
Van has been sitting for 6 months because I was disgusted with it.
@@gokaneinthemembrane2745 haha I understand... seems like the more a van sits the more likely the grounds can get corroded or oxidized... so could be something there
I’m going to try that tomorrow
I hope it works!! Let me know
@@kampinglogik nope didn’t work
@@rosendofj40bigblock7 bummer! Other ideas I have (sorry if you have already tried these) are to check that the engine will run if fuel is present by spraying starting spray or pouring gasoline into the TBI throat while turning the ignition over. If it fires up, then its probably some issue with fuel delivery.
Another idea (while vehicle is off) is to take a 9 volt battery and tap it on the 2 electric connection poles of each TBI injector to see if they click. If they make some clicking noise then the TBI injectors are good/functional and the problem is somewhere else.
Can you hear the fuel pump hum when you turn the key the first click in the ignition?
I had a crack in my fuel line,
It was sucking air, replaced line, and filter it’s running now
@@rosendofj40bigblock7 oh wow! Good to know that is a possibility, but most of all glad you figured it out!
Can you tell me where are the grounds for the directional lights and brake lights?, mine turn on but one of them is less shine that the other (not having good ground i guess)
It's a ground if it's the front look for a ground one side or other same for the back
What year is your van?
How did the head gasket repair go. I'm just curious.
Unfortunately I never got it done. I ended up selling the van to fund my roof top tent/trailer project. I still have my 1987 Chevy G30 - and its going strong!!
Im going to try this later, I was driving home and the dirt road is very bumpy and I let of the gas to coast down the hill and my engine just shut off completely, tried starting it back up it would crank but not turn over, I’m hoping it’s just a loose wire somewhere
Hey thanks for watching. Sorry to hear your engine won't start. Definitely check the ground... could be corroded or loose just enough to keep the engine from firing up.
Anyone else get a no spark no injector pulse situation with good crank? Ima try this in the am but i dont wanna buy something if i don't have to. Ive put 3 distributors on it.
I'm a little dense on electrical problems. If it cranks, isn't the starter working? Why would the starter ground be the problem?
Its not the starter that is at issue (as you noted, it is cranking). In my case here, the weak ground is somehow preventing the TBI unit from injecting the necessary fuel. The TBI is electronically controlled and requires enough voltage to fire.
Also the fuel pump is obviously running off the 12v, so it could be effecting that as well.
@@kampinglogik Thanks, I have an 87 V20 that turned over and started a year ago. I replaced a needed slave and master hydraulic clutch but when I tried to get it going, it turned over but wouldn't start. Ether kept it going for a short while. I hope tending to the grounds solves the problem. I know one of the fuel pumps was down a year ago.
@@MrBetabit Yes this sounds like my situation. Was working on it here and there, but would get busy or low on cash and it would sit for a while at a time. I swapped the fuel pump and you could here it come on, but it didn't solve the problem. Like you, I could pour fuel or spray starter fluid into the TBI and it would stay on for as long as I could keep the flow, so I knew there was spark. Took a while but I realized the TBI injector units weren't spraying, even with new fuel pump. I got a TBI test light kit and it showed no electric pulse activity. So that is when I finally cleaned the ground off and it started up right away.
👍👍
Thanks for watching!!
Where were you able to find the diagram of ground locations for your van? I can't seem to find one for my 1997 chevy express 1500.
Great video btw
Not sure if you found a diagram yet - here is one I found. The location of each ground is described in the text on the schematic - portal-diagnostov.com/en/2020/05/01/ground-distribution-chevrolet-chevy-express-g1500-1997-system-wiring-diagrams/ - another idea is to join an Express van group on facebook - the guys in these groups seem to have all this stuff on hand.
Hey thanks so much!
@@kampinglogik wow thank you so much!! Really appreciate the help.
@@wtfrusrsrn no problem... hope you get it figured out!
I had the same issue.
Did you get it started back up?
How were you getting a good crank with a bad ground?
Yes this is one of the mysteries to me... and why I dismissed that as a possibility for a year 🤣
I’m having a similar issue where I’m getting good crank, but I’m not getting signal to my injectors TBI
🤙🏿
Thanks for watching... hope it helped!!
Mine same issue. Injectors work. There is spark. No start. Try to put gasoline in tbi by hand no start. Cleaned out the ground. No start. What you recomend to check after that?
Hmm... you put fuel in by hand and it won't start? Is your starter working? Mine would fire up for as long as I put fuel in by hand. So I knew there was spark. Seems to me that if there is spark, it should fire if you are putting fuel directly into the TBI.
Does the starter make any noise when you try to turn it over?
@@kampinglogik hi. I changed the plugs & its start. But it died.i replaced the icm & temp sensor & distributor module & rebuild injectors & fuel filter and still start then die, some time its keep idleing but rough & bkack smoke. I dont know what to do
@@Q8motorclassic Have you checked the fuel pump's pressure?
@Q8motorclassic did you check the fuel pressure regulator?
@@brianshizmo78 i found that it was converted from 5.7 to 7.4 454. Electric job was a piece of junk. Throw the car away dont have time to deal with these shit
I have a 1995 GMC Sierra v6 , same issue, crank but won’t start, I might will have to check the ground tomorrow to see that’s my problem
Definitely worth a look... had someone comment that they had to clean the ground connection on both the engine block and the battery to get theirs to fire. So I'd check both
Am haveing the same iusses with my truck
Hey thanks for watching! Good luck with the truck, I hope this helps. When you do figure out what's wrong, let us know what fix you used!
Hey I had the same problem
did you get it solved?
Question
I will be glad to share any info I know.
I have a Chevy caprice 1993 ran when it was parked new starter new cables new battery new ignition switch and it won't crank
@@RashaadMcClenton-rs6uv so no crank at all? What all happens when you turn the key? Do the lights on the dash come on? Is it possible the battery is accidently drained from a parasitic draw?
It has nothing to do with the ground. It has to do with the fact that disconnecting and reconnecting the battery re-set the computer.
Hmmmm I'd be open to that possibility, as I am an amateur... but I will say, I did disconnect the computer at least once at earlier dates, hoping a reset would change the outcome... also, the battery died and had to recharged several times, and was also disconnected several times for other repair attempts... none of that changed the situation. So I still feel good on my conclusion, as I really did try all kinds of things in my frustration over the course of 12 months. But that could be a great tip for someone in a similar situation. Thanks for chiming in!
That wasn't the problem
Oh bummer. Did you find a fix yet?
The human body responds exactly the same way. Just sayin.
Haha 😄
wtf is a STARTER BATTERY!!!!
Haha... just the regular 12v battery under the hood. In a camper van there can be a secondary "house" battery. Sorry for the confusion in terminology.
Omg you don't know!
i know BATTERY. THERE IS NO OTHER KIND OF BATTERY THAN A BATTERY. Theres no such thing as a STARTER BATTERY. Batteries are batteries. @@rmcpeek