'87 Fuel pump question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**nlped** · 08-29-2009, 11:53 AM

I have power delivery issues to the passenger side pump. The switch seems to be "switching" as I got the drivers side to run on either setting by switching plugs. But there is no power at the passenger side plug when the switch is "switched".

Help!!! I need a wiring diagram and couldn't find one by searching.

HELP!!!

menace121978 · 08-29-2009, 12:06 PM

http://forum.73-87chevytrucks.com/sm...?topic=11766.0

hope this helps

**nlped** · 08-29-2009, 12:23 PM

It doesn't appear to have a wiring diagram for a TBI 2 tank truck just a regular carb. truck.

menace121978 · 08-29-2009, 12:52 PM

http://www.autozone.com/autozone/rep...00c1528004c56c

this is the only other diagram i have...

menace121978 · 08-29-2009, 01:02 PM

heres 1 more i found for the aux. tank.

http://i89.photobucket.com/albums/k2...kSchematic.jpg

**nlped** · 08-29-2009, 02:38 PM

I think I came make it happen from that last one.

Thanks a TON menace121978

**nlped** · 08-29-2009, 02:42 PM

Best I can tell, other than the obvious, is that the switch in the dash IS bad. I also have removed the passenger tank because the fuel lines and ground were all undone from the top of the tank...things that make you go "oh $hit". I dropped the tank, which turned out to be full of gas, or some terrible smelling brew that weighed about 125#. I got the pump and float assembly out to find that they were completely destroyed from the broken down gas/kerosene junk in the tank. So, I have to have a pump/sending unit assembly, a switch for the dash, and, OH YEAH, a new tank because the stock ones insides are coming apart. AWESOME!!!

**nlped** · 08-29-2009, 02:46 PM

Oh, and did I mention the damn sky is falling! It was a perfectly clear, sunny sky 20 minutes ago, but now it is raining like he!!...SURE!

**old Rusty C10** · 08-29-2009, 02:54 PM

try advanced auto parts for the tank print out the thing online and take that to the store its cheaper that way

**nlped** · 08-30-2009, 10:15 AM

It actually looks like O'Reilly's is the cheapest source for the tank @ $113, but the pump assembly is $250...OUCH!!! I think I am going to slow down on the passenger tank until I finish the 5.3 swap. I will go ahead and get the tank and possibly the float/pump assembly minus the pump and get the correct high pressure pump later.

menace121978 · 08-30-2009, 10:39 AM

anytime man. glad i could help. i'd wait on the pump since your doing the swap and the sending unit is only around $100 + $80 for the high psi pump you'll be saving money. good time to start piecing together the fuel system for the swap.

glock35ipsc · 08-30-2009, 11:10 AM

Sending units:

* Dorman p/n 692027 for the driver side, $94 at rockauto.com
* Dorman p/n 692044 for the passenger side, $101 at rockauto.com

Rock Auto also has the 87 tanks, $110 with shipping to my zip. P/N GM11C, $79.79

menace121978 · 08-30-2009, 11:22 AM

i was just looking for those

**nlped** · 08-30-2009, 02:48 PM

Thanks, Glock. I will order those in the morning!

**nlped** · 08-31-2009, 07:49 AM

I got the tank, sending unit, tank selector switch, and even went ahead and got a new A/C Delco pump and sock (I won't be doing my swap until first of year...probably) shipped to my house for less than I could buy the pump assembly locally. Rock Auto...well...Rocks

glock35ipsc · 08-31-2009, 09:18 AM

Yes they do, I use them a lot.

08-29-2009, 11:53 AM	#1
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	'87 Fuel pump question I have power delivery issues to the passenger side pump. The switch seems to be "switching" as I got the drivers side to run on either setting by switching plugs. But there is no power at the passenger side plug when the switch is "switched". Help!!! I need a wiring diagram and couldn't find one by searching. HELP!!! __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-29-2009, 12:06 PM	#2
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: '87 Fuel pump question http://forum.73-87chevytrucks.com/sm...?topic=11766.0 hope this helps __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

08-29-2009, 12:23 PM	#3
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question It doesn't appear to have a wiring diagram for a TBI 2 tank truck just a regular carb. truck. __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-29-2009, 12:52 PM	#4
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: '87 Fuel pump question http://www.autozone.com/autozone/rep...00c1528004c56c this is the only other diagram i have... __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

08-29-2009, 01:02 PM	#5
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: '87 Fuel pump question heres 1 more i found for the aux. tank. http://i89.photobucket.com/albums/k2...kSchematic.jpg __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

08-29-2009, 02:38 PM	#6
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question I think I came make it happen from that last one. Thanks a TON menace121978 __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-29-2009, 02:42 PM	#7
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question Best I can tell, other than the obvious, is that the switch in the dash IS bad. I also have removed the passenger tank because the fuel lines and ground were all undone from the top of the tank...things that make you go "oh $hit". I dropped the tank, which turned out to be full of gas, or some terrible smelling brew that weighed about 125#. I got the pump and float assembly out to find that they were completely destroyed from the broken down gas/kerosene junk in the tank. So, I have to have a pump/sending unit assembly, a switch for the dash, and, OH YEAH, a new tank because the stock ones insides are coming apart. AWESOME!!! __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-29-2009, 02:46 PM	#8
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question Oh, and did I mention the damn sky is falling! It was a perfectly clear, sunny sky 20 minutes ago, but now it is raining like he!!...SURE! __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-29-2009, 02:54 PM	#9
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,313	Re: '87 Fuel pump question try advanced auto parts for the tank print out the thing online and take that to the store its cheaper that way __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

08-30-2009, 10:15 AM	#10
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question It actually looks like O'Reilly's is the cheapest source for the tank @ $113, but the pump assembly is $250...OUCH!!! I think I am going to slow down on the passenger tank until I finish the 5.3 swap. I will go ahead and get the tank and possibly the float/pump assembly minus the pump and get the correct high pressure pump later. __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-30-2009, 10:39 AM	#11
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: '87 Fuel pump question anytime man. glad i could help. i'd wait on the pump since your doing the swap and the sending unit is only around $100 + $80 for the high psi pump you'll be saving money. good time to start piecing together the fuel system for the swap. __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

08-30-2009, 11:10 AM	#12
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,684	Re: '87 Fuel pump question Sending units: * Dorman p/n 692027 for the driver side, $94 at rockauto.com * Dorman p/n 692044 for the passenger side, $101 at rockauto.com Rock Auto also has the 87 tanks, $110 with shipping to my zip. P/N GM11C, $79.79 __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 08-30-2009 at 11:14 AM.

08-30-2009, 11:22 AM	#13
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: '87 Fuel pump question i was just looking for those __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

08-30-2009, 02:48 PM	#14
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question Thanks, Glock. I will order those in the morning! __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha

08-31-2009, 07:49 AM	#15
nlped Senior Member Join Date: Jul 2009 Location: Hayden, Al. Posts: 4,148	Re: '87 Fuel pump question I got the tank, sending unit, tank selector switch, and even went ahead and got a new A/C Delco pump and sock (I won't be doing my swap until first of year...probably) shipped to my house for less than I could buy the pump assembly locally. Rock Auto...well...Rocks __________________ Carter 1968 Chevy SWB Fleet... Walt 1963-1/2 Ford Falcon Futura...Martha



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08-31-2009, 09:18 AM	#16
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,684	Re: '87 Fuel pump question Yes they do, I use them a lot. __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE

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