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#1 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Alright guys, I am a newcomer at this time. I am having a lot of trouble with my truck. The problem is that my 72 c10 with a 402 big block, starts with no problem, until I put it in gear, either drive, or reverse, then it just shuts off! Can anybody help, please? I really need someone to help me out!
George! |
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#2 |
Registered User
Join Date: Jun 2011
Location: Richmond,Va
Posts: 2,934
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Re: 1972 c10 chevy truck troubleshooting!
Any recent repairs or changes to your combo?
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Nick Carter 1967 C10 Short bed Fleetside Project Cheap Thrills! 2WD C10 Modern/Performance Alignments Easiest Alignment Ever! |
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#3 |
Eat, Sleep, Drive a Chevy
Join Date: Apr 2010
Location: the town of the cow, Texas
Posts: 1,152
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Re: 1972 c10 chevy truck troubleshooting!
welcome to the site my neighbor to the north!
Is your truck running smoothly before you drop it into gear? Do you know the idle speed before you put it in gear? As Bmerdoc asked is there anything new or changed? It may be a simple carb adjustment
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Trey Silence may be Golden, but Duct Tape is Silver! 72 Short Step 57 "big window" short step |
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#4 | |
Registered User
Join Date: Mar 2011
Location: Los Angeles, CA
Posts: 152
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![]() Quote:
If it is an HEI, check the green and yellow wires at the pickup coil inside the distributor. Same fix, replace the distributor. |
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#5 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,216
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Re: 1972 c10 chevy truck troubleshooting!
Try increaseing the idle speed.
Blueprint brings up a good possibility but here in the Midwest we replace the wire or the pickup coil & not the whole dist. |
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#6 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Not really other than a carburetor kit!
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#7 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Not really BMERDOC!
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#8 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Yep, CHEVYTRUCKLUVER, the idle is fine, it cranks up like a rocket, the problem is when I put it in drive, or reverse then, it just shuts off. I can keep it running if I used both feet, on foot on the break and the other on the gas!
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#9 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thanks AUTOBLUEPRINT, I will try it out and see what happens!
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#10 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thank you WRENCHBENDER RET, I will try all these tips out. Hopefully, I will get my baby running again. I really need it running, this is my new project, is ready for a paint and interior job.
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#11 |
Registered User
Join Date: Aug 2008
Location: Red Deer ab canada
Posts: 1,250
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Re: 1972 c10 chevy truck troubleshooting!
If your torque convertor decided to lock up this could possibly happen.
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1972 factory 2 Wheel Drive Blazer-Sold 1972 K10 4X4-Sold 1971 Chevrolet Cheyenne/10-Sold 1970 Chevrolet C/10-Sold 1968 GMC 4X4-Project 1968 Chevrolet C/10 Pro Street 1970 GMC 3/4 Ton-Parts 1997 2WD 2DR Yukon-Sweet http://67-72chevytrucks.com/vboard/s...d.php?t=335664 |
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#12 |
Msgt USAF Ret
![]() ![]() Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,714
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Re: 1972 c10 chevy truck troubleshooting!
Look around the intake manifold for an open port where a hose might go. You might have a large vacuum leak. If you just put in a carb kit you may have missed a port. If you have a vacuum gauge then put it on a manifold port and try to read around 18 inches of vacuum.
Do you have a brake booster? If so then pull the hose off of it at the manifold and plug the port. A bad brake booster will cause a vacuum leak. Vacuum leaks will make the engine run faster and when the idle is turned down to compensate, then the off idle acceleration is affected and the vehicle will stall. Block up the rear end and repeat the procedure. Check your timing. Retarded timing will give these symptoms.
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VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
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#13 |
Registered User
Join Date: Feb 2008
Location: Lake Stevens, WA
Posts: 623
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Re: 1972 c10 chevy truck troubleshooting!
^^ I agree with the above. If you can keep it running by keeping your foot on the gas, then it's not a problem with loss of continuity in the ignition circuit. More than likely a timing issue, vac leak, carb adjustment, etc. Something is maladjusted rather than broken.
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#14 |
Registered User
Join Date: Oct 2010
Location: Riverton Wyoming
Posts: 93
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Re: 1972 c10 chevy truck troubleshooting!
i had this same problem with my 350/700r4 combo. intake leak was my problem. ran fine at idle untill it is put in gear and then it wouldnt keep up an idle. or try the carb kit idea, or possibly even a carb gasket.
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"Its better to burn out than it is to rust!" '70 GMC C10 2wd. 2.02 aluminum heads. TH400 trans. 450WHP '04 Nissan 350z DD, Twin Turbo, 600whp, drag beast! |
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#15 | |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,151
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Re: 1972 c10 chevy truck troubleshooting!
Quote:
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#16 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thanks, PHAT TONY!
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#17 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thanks, Vettevet!
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#18 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thanks Indiuke!
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#19 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thanks, New age 1970!
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#20 |
Registered User
Join Date: Dec 2011
Location: Sherman, Texas
Posts: 12
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Re: 1972 c10 chevy truck troubleshooting!
Thanks, Markdtn!
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Tags |
402, 72 c10, lwb bed chevy 1972 |
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