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Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

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ok i really dont know a whole lot about diesel engines but im still young and trying to learn a few things.I got a 1983 4x4 chevy flat bed for snow plowing it started sputtering with a noticable loss of power before it died.now it ... JOIN NOW TO REMOVE TRACER

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  #1  
Old 08-24-2011, 06:59 PM
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Default 1983 chevy with 6.2l questions

ok i really dont know a whole lot about diesel engines but im still young and trying to learn a few things.I got a 1983 4x4 chevy flat bed for snow plowing it started sputtering with a noticable loss of power before it died.now it wont start Any ideas or suggestions would be helpfull thanks

---AutoMerged DoublePost---

pro should of added bought it for 1500 it said 6.2l heavy duty frame and suspension

Last edited by nhusar91; 08-24-2011 at 06:59 PM.. Reason: Automerged Doublepost
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Old 08-24-2011, 07:12 PM
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Fuel gauge is probably lying to you, and it ran out of diesel. Only one way to find out is switch tanks or fill the passenger side (23 gal capacity). To boot, fastest way of priming is after you got at least half a tank is use shop air to re-prime the system don't go more than 10 lbs.

Is there a square filter on the firewall or is there a round one?

One more thing you can check, on top of the engine toward the front, there will be two diff colored wires (single red, and a double green). Turn the key on, then make sure both got power. If the red wire does, but the green one doesn't, run a jumper to it (make sure to listen for a click). That terminal is for the return line solenoid. If it doesn't work, the engine will not run good, or at all.

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Last edited by wildbill; 08-24-2011 at 07:16 PM..
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Old 08-24-2011, 07:31 PM
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thank you. yeah it had a full tank, the fuel filter is round on the firewall there is also a smaller one on the back of the block, and yeah i can hear the clicking from the solenoide, but i had the injector pump rebuilt because it had a fuel leak, i guy i got working on it now says the intake manifold and headers are chevy but the bottom of the engine is a cat motor but he is thinking it might be the starter it was cranking slow
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Old 08-24-2011, 09:04 PM
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Both tanks are full? The selector valve defaults to the drivers side when it fails or when power is cut off to it. It's possible that it or the fuel pump went out.
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Old 08-24-2011, 09:50 PM
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My bad there is only one tank side saddle under the driverside
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Old 08-24-2011, 10:33 PM
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Air leak in a fuel line. Check to make sure the fuel pump is working. Then Check all the fuel lines running from the tank to the injection pump for crack or bad places. It may not leak fuel but it most likely sucking air some where.

2MuchJunk's Sig:83 Chevy 4x4 6.2 diesel forged Teflon coated pistons, total seal gap-less rings, balanced, banks turbo when I get motivated enough to put it on, soon to have head studs, main studs, and a fluid damper.
95 GMC 6.5 bad trans at 300k. 94 1 ton 6.5 beat up and wore out, 94 1ton dually ext cab 4x4 5 speed.
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Old 08-24-2011, 10:36 PM
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Thanks I'll try that
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Old 09-01-2011, 04:44 PM
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is it cranking?

ebarresi5894's Sig:97 2500 12V 140k gauges, tuned AFC, #100 fuel plate, 3K GSK, 5" Stacks, BHAF,

97 3500 12V 180k AFC tuned, no fuel plate, adjustable OFV, 1/2" lines, big line kit, 3k GSK, 7" Stacks, K&N intake, Rebuilt tranny billet TC, Shift kit,
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Old 09-02-2011, 06:22 PM
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yeah its cranking
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Old 09-03-2011, 11:46 PM
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ok just making sure that it was a definite fuel problem and not a bottom end problem
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