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08-14-2021, 03:47 PM
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#1 |
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Registered User
Join Date: Feb 2010
Location: Houston, Tx
Posts: 349
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engine bogs under load
have an 84c10 with 5.3/4l60e swap DBC
truck bogs down under acceleration. idles fine but will only speed up gradually and falls flat when I step on it. fuel pressure is steady at 58psi things I have changed: MAF Fuel pump fuel regulator throttle body fuel filter complete wiring harness codes that just popped up recently are: p0107 manifold absolute pressure/ barometric pressure circuit low p0342 camshaft position sensor A circuit low bank 1 or signal sensor p0740 torque converter clutch circuit/open p0753 shift solenoid A electrical p0758 shift solenoid B electrical what would you guys check 1st?
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08-14-2021, 05:27 PM
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#2 |
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Registered User
Join Date: Nov 2014
Location: Austin
Posts: 749
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Re: engine bogs under load
The map sensor
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08-17-2021, 09:34 AM
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#3 |
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Senior Member
 
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,883
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Re: engine bogs under load
I'd be looking if there is a circuit common to all those sensors.
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
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08-18-2021, 11:06 PM
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#4 |
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Registered User
Join Date: Dec 2013
Location: Dunwoody,Ga
Posts: 443
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Re: engine bogs under load
Gm has specific instuctions on how and where the map sensor is located.
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08-19-2021, 11:44 AM
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#5 | |
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Registered User
Join Date: Nov 2001
Location: Springfield, MO
Posts: 2,930
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Re: engine bogs under load
Quote:
Dave
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Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!" |
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