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03-13-2016, 09:49 PM
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#1 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Farm truck refresh
I picked up my 79 C30 a couple of years ago to haul rock on the acreage that we purchased. It is a 350/400 with a dumping flatbed.
A couple of weeks ago I lost oil pressure while hauling my mower. I have decided to update the drive train to a TBI 350 and a 4L80e. I've tried to upload pics but they always show upside down.... Last edited by Mavis79; 03-13-2016 at 10:09 PM. |
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03-13-2016, 10:29 PM
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#2 | |
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Registered User
Join Date: Oct 2012
Location: Tyler, Texas
Posts: 217
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Re: Farm truck refresh
Quote:
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Current Projects: 1984 GMC, LWB Fleetside, 305/350 - Currently Doing TBI Conversion 1966 GMC, SWB Stepside, 350/200-4R - Currently waiting patiently. |
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03-13-2016, 11:16 PM
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#3 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Current photos...
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03-14-2016, 03:59 AM
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#4 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
Cool truck. You will like the 4l80e.
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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03-14-2016, 02:17 PM
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#5 |
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Registered User
Join Date: Oct 2012
Location: Tyler, Texas
Posts: 217
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Re: Farm truck refresh
Gonna keep that bed on? (I would, just saying)
__________________
Current Projects: 1984 GMC, LWB Fleetside, 305/350 - Currently Doing TBI Conversion 1966 GMC, SWB Stepside, 350/200-4R - Currently waiting patiently. |
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03-14-2016, 03:04 PM
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#6 | |
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Registered User
Join Date: Dec 2010
Location: Burleson, Texas
Posts: 596
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Re: Farm truck refresh
Quote:
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Allengator Outta the Blue (my band - available for hire in the DFW area!) 1980 Chevy SWB Pickup (build thread) 1951 Chevy Sedan Delivery 2004 Chevy Tahoe Z71 2011 Harley Davidson Street Glide 2018 Silverado Z71 Crew Cab |
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03-14-2016, 07:04 PM
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#7 | |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Quote:
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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03-22-2016, 11:22 PM
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#8 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Engine and trans mated...wiring harness installed hope to get it in the truck this week
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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03-23-2016, 03:11 AM
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#9 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
Looks good. Who did you get your harness from?
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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03-23-2016, 11:20 AM
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#10 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Harness came from FuelInjectionConnection.com out of Colorado...cheaper than Howell, but they haven't returned emails/questions....The harness appears to be of good quality.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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03-27-2016, 12:17 AM
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#11 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Made progress...engine and trans are in place.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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03-27-2016, 12:22 AM
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#12 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Modified the sending unit from the 95 to fit the fuel tank from the 79. So I'll use the stock 95 fuel pump.
 I didn't get pictures but I also cut down the trans crossmember from the 95 to fit the 79...
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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03-27-2016, 05:32 AM
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#13 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
Nice work. What are you doing for a PCM? I'm not super up to speed on the tbi computers but I have one that will be homeless in a couple weeks from my crew (5.7 4l80e).
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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03-27-2016, 01:38 PM
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#14 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
I've got a 6395 PCM from a salvage yard truck...I may be interested in the DRAC module.
I did find out why my gauges don't work. It seems a prior owner thought he was an electrician...it a mess under the dash.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala Last edited by Mavis79; 03-27-2016 at 02:07 PM. |
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05-29-2016, 02:17 AM
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#15 |
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Registered User
Join Date: Oct 2015
Location: PNW
Posts: 3,627
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Re: Farm truck refresh
Really like the yellow and white. Good luck!
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05-29-2016, 04:15 AM
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#16 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
Exciting. Looking forward to the pics. Keeping the color scheme?
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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05-30-2016, 10:32 PM
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#17 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
 The new cab is brown but I think I'll repaint to the yellow and white. Old cab is off and the frame is cleaned and primed.
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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05-30-2016, 10:54 PM
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#18 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
Nice you are getting after it.
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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06-19-2016, 11:13 PM
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#19 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Front half of the frame painted, replacement cab on, engine/trans mounted
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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06-28-2016, 10:27 AM
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#20 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
Just about ready to swap intakes, slap on a carb and go back to the TH400 Trans....
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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06-28-2016, 11:08 AM
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#21 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
I agree two bad pumps is unlikely. The trickle of fuel doesn't sound right. I have gotten in the habit of double and triple checking all my grounds in a situation like this. That has bitten me before. Also are you using the jumper for testing at the fuel pump relay or just cycling the key? Pumps making healthy noise? Is your gauge behaving correctly or pointed at 3:00? I'll try to think of some more things to check.
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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06-28-2016, 12:36 PM
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#22 |
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Registered User
Join Date: Nov 2015
Location: Smethport, PA
Posts: 1,213
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Re: Farm truck refresh
So, you are getting some amount of fuel pressure to the TB. The fuel is not coming out of the injectors or going back the return line. Seems to me that something is blocked up. I'm no expert on Throttle Bodies mind you, I'm just throwing out ideas. It is possible that the injectors are not firing, but if they are not the fuel should get returned back to the tank. It would be nice if you had a way to measure the fuel pressure too.
__________________
85 K30 crew cab dually - Project http://67-72chevytrucks.com/vboard/s...d.php?t=694939 87 Wrangler Rock Crawler - Reason for the project http://www.wranglerforum.com/f330/da...ld-122601.html 04 1500 crew cab http://67-72chevytrucks.com/vboard/s...d.php?t=786514 |
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06-28-2016, 01:01 PM
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#23 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
http://67-72chevytrucks.com/vboard/s...light=tbi+swap
This thread is really long, but I found some great info when I swapped the TBI onto my 77 K10 in here. Lots of troubleshooting ideas.
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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06-28-2016, 03:21 PM
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#24 |
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Registered User
Join Date: Mar 2016
Location: Wilton IA
Posts: 61
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Re: Farm truck refresh
MTCK, I am cycling the key. I can hear the pumps run, and on the first pump discontented the fuel line after the filter to ensure flow. Once I verified flow past the filter, I "cracked" the line at the throttle body and verified flow to the TB (although it is all new lines/filter).
I'm not sure I can jump the pump relay...I haven't really looked into it as I have verified the pumps run when the key is cycled. Could the relay be the cause even though the pumps are running? I haven't hooked the gauge up yet...as I put in a "new" drivers side tank. I only had a passenger side before...and will eventually have dual tanks. I will be running a single drivers side tank for now.... I'll look through your thread...Thanks for the help, as usual you are an excellent source of knowledge... DaddyJeep, I agree...my first thought is a plugged FPR...but like you I'm not an expert on the TB's...yet...I think I'll be very well versed by the time this is fixed....
__________________
84 K5 6.2 Diesel/700R4 (Project on hold) 84 K10 Extended Cab 350TBI/TH350 98 C3500HD 6.5/NV4500 Dump 03 Silverado 2500HD 6.6/Allison 07 Ford Escape Hybrid (Commuter) 15 Chevy Impala |
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06-28-2016, 07:58 PM
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#25 |
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Registered User
Join Date: Dec 2009
Location: Fairbanks, AK
Posts: 1,830
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Re: Farm truck refresh
If you have a stock style fuel pump relay, there is a single red wire coming out the bottom of the housing. Put 12+ there and pump should run continuous. Could help with trouble shooting.
__________________
-Marcus 1991 V3500 L29 454 4L80E NP205 D60/14 Bolt 4.56's 1984 K30 292 TH400 NP205 D60/14 Bolt 4.56's flat bed 7'6" Meyer Plow 2022 Silverado 3500 L8T Project Daily Driver Project Heavy Hauler Project Plow Truck |
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