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02-21-2018, 03:23 PM
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#1 |
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Registered User
Join Date: Apr 2012
Location: Lexington south Carolina
Posts: 98
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6.2 problems
I have a 6.2 in a 85 chevy k30 that is not running right when it warms up it has no power on top end and acts like it's not getting enough fuel and a lot of blue smoke
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02-21-2018, 04:09 PM
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#2 |
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Registered User
Join Date: May 2011
Location: Goliad, TX
Posts: 672
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Re: 6.2 problems
Make sure your fuel filter is not clogged.
__________________
1990 ¾ ton 4x4 Chevy Suburban -Cummins Diesel - 12 valve - factory rebuilt -6 speed bullet proof manual transmission - NV5600 -Gear Vendors Overdrive - HX35 Holset Turbo -NP205 iron transfer case -3.73 gears -2" Lift |
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02-21-2018, 04:29 PM
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#3 | |
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Registered User
Join Date: Apr 2012
Location: Lexington south Carolina
Posts: 98
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Quote:
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02-21-2018, 04:42 PM
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#4 |
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Registered User
 Join Date: Jun 2016
Location: Phoenix, AZ
Posts: 574
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Re: 6.2 problems
There are a number of things that can cause that. Have you checked pump timing?
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find 87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4 |
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02-21-2018, 06:27 PM
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#5 |
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What Hump?
Join Date: Apr 2003
Location: New River AZ
Posts: 2,009
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Re: 6.2 problems
Watch this YouTube video, I believe he had the same issues you are having w/ the 6.2 its either this one or the next.
https://www.youtube.com/watch?v=TSU2lvRWeYw
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Lil red 86 c-10 99 Sub 78 Camper Special w/ 454 |
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02-21-2018, 07:35 PM
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#6 |
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Registered User
Join Date: Apr 2012
Location: Lexington south Carolina
Posts: 98
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The truck is running it's just has no power when you give it a lot of fuel it dies and then it doesn't even want to idle right but if you shut it off it will crank back and idle fine until you give it a lot of fuel again
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02-21-2018, 08:05 PM
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#7 | |
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Registered User
Join Date: Apr 2012
Location: Lexington south Carolina
Posts: 98
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Quote:
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02-21-2018, 08:22 PM
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#8 |
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Registered User
Join Date: May 2011
Location: Goliad, TX
Posts: 672
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Re: 6.2 problems
You may have an injection pump going out.
__________________
1990 ¾ ton 4x4 Chevy Suburban -Cummins Diesel - 12 valve - factory rebuilt -6 speed bullet proof manual transmission - NV5600 -Gear Vendors Overdrive - HX35 Holset Turbo -NP205 iron transfer case -3.73 gears -2" Lift |
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02-21-2018, 08:57 PM
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#9 | |
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Registered User
Join Date: Apr 2012
Location: Lexington south Carolina
Posts: 98
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02-22-2018, 06:42 AM
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#10 |
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Next!
Join Date: Jan 2003
Location: Eastern Pa.
Posts: 2,483
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Re: 6.2 problems
Pick up sock in fuel tank could be clogged. Especially if truck had been sitting for a while.
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86 K30 CUCV M1028A1 86 K30 CUCV M1028a2 dually 86 K30 C&C 6.2 4:56s, 4M, 11,000 gvw, ex fire truck, now lowboy dump More square bodies and CUCVs than I care to admit to 2020 Silverado K3500HD Work truck |
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