Chevy GMC Pickup 5.7L Engine Cranks But Wont Start

[@tennesseehunter3190]

if all else fails --don't forget about the ground strap that runs from back of engine block ( held on with a nut very hard to get to ) --it runs down thru a tube to the passenger side frame ...if it's corroded truck will miss, if it's corroded bad enough or broken, truck will crank but won't start

[@fordguy759]

Thanks a million. That really helped out with my 2000 c2500 I was really confused when I had fuel and spark but no fire even with starting fluid. The ground was broke so I vice griped it together to try it and it fired up real quick.

[@fubarlife7776]

Thanks. I like information without waterboarding 😆

[@huntercrawmer40]

Doing a great job on finding out the problem. And not being a part’s changer. Keep up the good work !

[@trafalga5136]

Great job on the diagnostics. Had many trucks with the 350 and they were solid engines. Keep up the good work.

[@ThecardoctorTV]

It would have been hard to overlook this pump issue but I’ve spent more than a few wasted hours going round in diagnostic circles and not sticking to the basics. This was a much needed break from the crappy rust bucket repairs I’ve been slogging through lately. Thank you for the support!

[@CC-xs1hh]

Much thanks, my 98 5.7 wants starts for a split second, haven’t scoped it yet, now going to check fuel pressure, has well over 200k, I’ve been expecting it to go out, and now pretty sure it is it, but going to pressure chk first....retired and on a budget, but still able to do repairs on my own (some), so your videos help so much,thanks....Blessings to all.

[@ThecardoctorTV]

Yes. Fuel pressure important there. Good luck

[@roccowhite5932]

Been trying to diagnose this for awhile thanks dude!

[@thomastommy1192]

As always a great very educational video. Thanks for sharing it. It's great to see you are back doing videos. I hope you have a blessed week.

[@jimthecarguy]

Nice diagnoses . It seams like the pumps just don't last as long as they use to.

[@ThecardoctorTV]

Thanks Jim! IM not sure why they cant fix the pump issues other than they must not want to I guess. Seems like they tend to fail just outside of warranty...Is it possible they plan it that way???hahaha. Blessings to you!

[@jalton9416]

I love your videos. You have saved me a bunch of money with my Chevy trucks.

[@SteveRobReviews]

Good call bud. It's worth the drive to Alaska to get waterboarded. Thanks for the vid Tim.

[@ThecardoctorTV]

I should list that as a service we provide. Haha. Good of you to drop in Steve!

[@JChapp-mj3yk]

Clear and concise, good job. Thank you.

[@ThecardoctorTV]

Thanks

[@kellyspeppers]

Yup, GM fuel pumps. Have seen guys cut a hole in the bed of the truck to access the top of the fuel tank, quick change the pump. haha. Another nice video, keep them coming.

[@losteroni]

That's what I did on my friend's 99' Tahoe . right under the driver side rear seat .

[@mikewilkes7831]

Did that to my Honda odyssey

[@spelunkerd]

Nice to see a few of those old girls still on the road. My 2000 5.3 is still alive, with about 360,000 km so far. Fuel pump has been noisy for decades, but still working fine.

[@losteroni]

My friend has got a 99' Tahoe and his fuel pump went out about a year ago and now just this week we had to replace the distributor . I'm so glad I got a 2006 Suburban with a 5.3 engine I've only had to replace the crankshaft position sensor and the water pump . .

[@unclemarksdiyauto]

Waterboard! Funny. Always good to know some history on the vehicle.

[@ThecardoctorTV]

Haha. Thanks.

[@darwinmcreynolds3278]

I have no power to the fuse box where the fuel pump is located where do I start to get pump rely power back to the fuse box

[@jenkinsmark1]

I am having same problem with my 1998 chevy 1500 5.7, i have replaced fuel pump fuel filter and the distributor cap and rotor cap, plugs and wires crank shaft sensor cam shaft sensor and the ignition coil and still wont start, the fuel pressure is around 55 psi could it be the spider injector,

[@loganweisz8948]

I know this is an older comment but I’d check your grounds. I’ve had a ground snap on one of my older vehicles that turned it into a a hunk of metal. Cranked fine but did not want to start what so ever. Not sure if it applies to these trucks but worth a shot.

[@carlosmartin5097]

I’m having the same issue if you get around it let me know I’d appreciate it thank

[@wickedws694]

Same issue 😒

[@yessicagonzalez1012]

Same issue

[@louiecortez2148]

What if you replace fuel pump already and still does the same thing? Got the same motor in my 1 ton utility and it just stops starting whenever it it wants.

[@louiecortez2148]

Any other possibilities?

[@druideverett1603]

Check pink wire, make sure 12v, sporadic relay

[@andyvaldez2830]

On my 5.7 vortec fuel pressure is 60 PSI with the key on engine off. Fuel pressure at idle is 53 psi and it never goes above 53 psi all the way to full throttle. As long as throttle is applied the engine will run smoothly but as soon as you let off the throttle the RPMs drop below 500 and the engine eventually dies. The fuel pump is making a noise now that it previously did not so naturally I think that the fuel pump is going bad. Could I get your thoughts please?

[@drulessman2892]

I have have 5.7 94 suburban wont start after it warms up what do you figure is the culprit to check.. I'm thinking icm?

[@benjaminpowell1488]

Was so helpful thank you so much

[@oldschool9746]

THANK YOU FOR YOUR TIME.

[@ThecardoctorTV]

No problem. Thanks for watching my videos.

[@ironbow123]

Awesome videos keep up the excellent work!

[@ThecardoctorTV]

Thank you!

[@javierzarate5672]

I just replaced the fuel pump And it still won't start, changed fuel pump relay and fuel filter. It still won't start. It starts with starting fluid. What else could it be??

[@JustanOldfart01]

That's the problem I'm having too.

[@fordhilly2116]

What makes a Chevrolet truck crank no start new fuel pump new crank sensor still won't start and getting fire change the plugs

[@AP9311]

Extremely common in those engines. They go bad quite often. Fuel pumps, fuel injectors, few other things. With updated versions, it'll last forever.

[@ThecardoctorTV]

Indeed! I love doing the MPI updates on the injectors. Super cool fix. Reminds me of the Hubble space telescope repair. Great when engineers find a way to fix their bad designs. Blessings!

[@AP9311]

@@ThecardoctorTV agreed, Tim. I need to do my injectors to. But can't since the truck blew the trans out. Lost my 3rd/4th gear. It's sitting on my driveway looking sad. Blessings to you and family :)

[@murrdiesal6294]

I have a question thats related to this specific problem but ive replaced my pump and filter and it still does not start any other tips youd be able to give please and thank you

[@ThecardoctorTV]

What have you tested? Spark, fuel pressure, compression?

[@Chris_at_Home]

I went to move my 1998 K2500 a few days ago to plow and it ran for a few seconds and died and won’t restart. I mixed a few bottles of heet with a couple gallons of gas and put it in the tank. I changed the filter and it still didn’t start. If I pour a little gas in the intake it starts. I cracked open the fitting on the output of the filter and it had quite a bit of pressure. I guess I need to get a gauge to check the fuel pressure. It’s out in the snow soon to be buried. It might just stay there till spring.

[@ThecardoctorTV]

Check pressure. If it even a little low your CIS injection system wont inject fuel at all.

[@Chris_at_Home]

@@ThecardoctorTV Thanks, I will. It is a 2nd vehicle I hardly drive in the winter and it’s in a bad place to retrieve with all this snow. It will be a spring time project. It seems every time something breaks it is winter. The only other problem in 22 years I owned it was the intake gasket causing antifreeze it get in the engine. I fixed it myself and it only took about 5 hours change the gaskets. It a good truck. It is the C6P chassis.

[@jodycordell1972]

Does a 97 chevy c1500 5.7l crankshaft position sensor need programming

[@ThecardoctorTV]

No

[@jodycordell1972]

@@ThecardoctorTV thank you I had a guy tell me I had to but I didn't think so

[@dunmegatate5778]

Good insight.

[@derricktopolski6639]

Can I get a call from you I need some advice about my 96 k1500 5.7 vortec

[@mohammadashraf1693]

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[@ericbriggs5828]

I had a no start with my 97 P-30 5.7 engine. I replaced the computer & it worked again. Today I went to harbor freight in it & came out & it wouldn't start. Could I have another bad computer? They refurbished the 1 that's in it.

[@jodycordell1972]

I have the random stall and no start put in new crank sensor it ran for 2 weeks and did it again it's losing spark

[@ThecardoctorTV]

Oh lame

[@davidg813]

My 2000 Tahoe with the 5.7 has to crank and crank 3 or 4 times in the morning like it is not being primed enough. I turn the key on and off to make the fuel pump activate over and over and finally the engine fires up. From that point on the truck starts right up for the rest of the day. It only happens after sitting in the garage overnight. I think I have a weak fuel pump but if so why does the truck run great once I get it running as if there is no problem with fuel delivery? I wonder if the sock on the pump is plugged from bad gas or dirt ,, maybe even some joker put sugar in my filler pipe? I have used gas additives for the injectors etc but that is not fixing the problem. I had new lines and a new Wicks filter put in recently but that $700 job did nothing. ##%@@! I did have a bad line that was leaking. 22 years.. I can't complain. Looks like I will be dropping the tank once weather permits. I had the same fuel pump fail with my 99 Yukon with the same engine and had to replace that pump. I want to check the pressure next. Going to buy a gauge. I am a do it your selfer mostly because of the ridiculous hourly labor rates. I wonder if its a defective fuel pressure sensor on the tank also. I may just replace that anyways first since its so old. The truck only has 80K on it and looks brand new so its worth fixing this issue for sure.

[@joelscott4384]

Thanks!

[@swathianil7077]

2006 model gmc engine not starting 4 more engine crank after engine crank stopped. Spark plug not sparking petrol coming

[@kristinaberry391]

We have a 1998 Chevy k1500 and have replaced the fuel pump, among many other parts. Ran all winter and then went to show my son it has been running and nothing again! Gave tune up new plugs wires, ignition coil, map sensor etc. HELP!!!!

[@L1dechuy09]

I just got me a 95 5.7 4x4 OBS Real Trucks

[@chadgilpin1977]

I've got a 99 GMC Sierra C3500. Started perfect the other day came a rain and now it wont start. Turns over great just wont start. I wonder what would cause that?

[@OnaDime570]

Im In the same position brotha. What was the diagnosis?

[@thej.r.9160]

Distributor cap might have got wet. Google his video. Search for it.

[@bowhunterd2407]

What did any of you come up with? Fighting the same issue as we speak🤬

[@chadgilpin1977]

My distributor was cracked. Very small but was allowing moisture to get in it

[@wyattoneable]

Yes sir Tim. I had the same crank no start and sure enough, it was a bad fuel pump that only lasted 1 few years. Good troubleshooting for us to understand.

[@ThecardoctorTV]

Thanks. This is my kind of diagnostics. Step 1 - connect fuel gauge. Step two - Replace fuel pump step 3 - Make video easy peasy :)

[@mkilomota]

I just put the pump but still no power to the sparkplug and won't start

[@jamesfox6886]

Ive change my alternator starter and battery and flexplate when I put everything back together my truck will not start I have a 97 GMC Sierra 1500 4x4 I cannot figure out the problem need help ASAP that is my work truck

[@jodycordell1972]

They usually clog the filter as they are failing

[@patriciavillalba898]

I got a 1991 chevy Silverado k1500 v8 getting no fuel to injectors but my fuel pump is making a sluggish sound

[@zephead4835]

I've got the exact same truck with the exact same problem how did you fix your truck please help.

[@patriciavillalba898]

@@zephead4835 i replaced the fuel pump and fuel filter

[@AntonioClaudioMichael]

Good video

[@richardumberger318]

Had a broken mount on dist. Changed out dist. Truck ran bout 5 mins... Died and won't start now....

[@richardumberger318]

Any suggestions???

[@mrj2010]

I've got the same issue I idle a lot when it's cold

[@HilltownCT]

I've got 200k on my original pump. I have a feeling I'll be cutting my teeth on this job before long. Great vid.

[@ThecardoctorTV]

You never know, it might go another 100k.

[@markcarr1605]

Same problem 1997 gmc c1500 cranks no start. Won't even kick on starting fluid.

[@yessicagonzalez1012]

Did you found what was the problem?

[@johnfolk4655]

Yes I cleaned my carburetor it will crank but not start so my next step is to change fuel pump and filter.....because when it cranks I give it gas then shuts off.

[@tylerbullis4231]

I got the same issue. Started to back fire lack of power then it died. Buuutt I have 58 psi cranks but wont start

[@dwightr.7728]

Try the cold start injector then

[@zx8401ztv]

That must have been on the edge of running all the time, waiting to die lol. A very handy pressure gauge, instant visual result :-D One happy customer as always :-D

[@ThecardoctorTV]

Well except for the part about "happy customer as always".. Once in a while I get unhappy customers. That's when I send them your way since you seem to have one of those calming personalities that diffuses tension. I should hire you as my customer service department instead of the people in India ive been using who don't speak very good English.

[@canadiantrucker9574]

I missed ya man, where you been?

[@ThecardoctorTV]

Craig, I’ve been so stinking busy. Have a few projects that should make for interesting videos so I look forward to being back here more.

[@canadiantrucker9574]

@@ThecardoctorTV I finally gave up with my old truck and went out and splurged. Now the owner of a 2019 Ram. I love it. No more worrying about repairs. But I do love your videos my friend

[@intelligencenfear7581]

How do I lower my idle to my 96 cheby v8. My truck used to start easy but now it cranks and don't start .do u think it's my alternator.i was thinking my idle sounds to high

[@anthonybagatelos8722]

Awsome

[@GustavoLopez-oz1rg]

Changing spark plug wires 96 chevy taho

[@sirsweetness8332]

There’s your problem lady!!!

[@DurgenzBallPeh]

I have my grandpas old 77 gmc sierra with a 350. Has a new fuel tank, so new fuel lines and fuel pump and filters. Everything fuel related is new except for Carb (1406 Edelbrock electric choke). Truck ran for a bit. Then got tinkered with and now womt run and has been sitting for a couple years. I've taken carb apart and cleaned and re-adjusted to manuals specs, replaced battery and alternator. Only time it will crank and start is with jumper cables on and another car helping it. When it finally does turn over it doesnt stay on for long till I dies. Without jumpers it will barely even crank. I'm completely lost at what to do now... Any suggestions anyone?

[@jerryking1434]

Start with s fresh battery...no charger..no jump...give it a spray of carb clean...if it starts and runs you've got a fuel issue ... Good luck...

[@LaramieJim]

I'm sure it has a full tank of gas....HAHA

[@ThecardoctorTV]

JIM!!!! haha, it was less than 1/4 tank. my lucky day :)

[@JBIRD575]

Help me mine won't start 1989 Chevy....

[@ThecardoctorTV]

Fuel, spark, compression?

[@jamesm568]

Regulator always gives me issues.

[@chriskystoneadventures]

👍👍👌

[@billbammerlin4666]

Mine won’t even start in eather

[@ThecardoctorTV]

Then it’s probably not a fuel issue

[@jacquelynncrespin593]

damn foo hoarded toilet paper lol

[@angelcorella177]

Amazon fuel pump only lasted Four months

[@manuelalba1505]

I'm having the same problem but I get a code p1345 any one getting codes

[@JBIRD575]

Car doctor help....

[@lloydmcgee3847]

What is that my 1989 gmc want run the motor turns over good

[@JBIRD575]

@@lloydmcgee3847 put a coil then it might start

[@JBIRD575]

@@lloydmcgee3847 check if you have spark on plugs could be bad coil

[@Dstarling117]

so not what the video is about. but this vid is 3 years old and the passenger seat is full of shit tickets lol.

[@unclemarksdiyauto]

Waterboard! Funny. Always good to know some history on the vehicle.