1988 K30 fuel pump replacement, lifting the bed.... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**57NAPCO** · 12-02-2020, 09:17 AM

Still not great access to the pump/sending unit(s) but I think I can get em out?

**Palf70Step** · 12-02-2020, 12:15 PM

Mine was a 1/2 ton swb, but I still ended having to drop the tank. Luckily I have a transmission jack that was used to raise and lower the tank. Of course you always need to do it right after you fill the tank.

Honest Bob · 12-02-2020, 03:39 PM

If your going to drop the tank one of these makes short work of nearly emptying the tank once you get it going.

https://www.harborfreight.com/self-p...ump-47334.html

5Tractorguy · 12-02-2020, 07:21 PM

Should be able to get them out at an angle... I've had the sending units in and out of my '88 K30's tanks more than I'd like to admit. They're about the same distance away from the cab as what yours are. Tight, but can be done!

**57NAPCO** · 12-02-2020, 08:50 PM

Great news, I’ll get on it soon....I hope.

Quote:

Originally Posted by 5Tractorguy

Should be able to get them out at an angle... I've had the sending units in and out of my '88 K30's tanks more than I'd like to admit. They're about the same distance away from the cab as what yours are. Tight, but can be done!

**57NAPCO** · 12-07-2020, 11:13 PM

You are correct, tight but can be done

Unfortunately the pump is good, I replaced it anyway. The good thing is I needed to address the second tank that’s never worked.

Quote:

Originally Posted by 5Tractorguy

Should be able to get them out at an angle... I've had the sending units in and out of my '88 K30's tanks more than I'd like to admit. They're about the same distance away from the cab as what yours are. Tight, but can be done!

5Tractorguy · 12-08-2020, 07:04 AM

Quote:

Originally Posted by 57NAPCO

You are correct, tight but can be done

Unfortunately the pump is good, I replaced it anyway. The good thing is I needed to address the second tank that’s never worked.

Excellent! Sure beats dropping the tank down... Hopefully the other side goes the same.

**57NAPCO** · 12-08-2020, 04:17 PM

Trying to locate the oil pressure switch on the back of the engine. Next to or behind the distributor, this a fully loaded truck so that area is a bit full. I laid back there for 20 minutes searching and couldn’t locate it .....aaaarg!

5Tractorguy · 12-08-2020, 07:46 PM

Quote:

Originally Posted by 57NAPCO

Trying to locate the oil pressure switch on the back of the engine. Next to or behind the distributor, this a fully loaded truck so that area is a bit full. I laid back there for 20 minutes searching and couldn’t locate it .....aaaarg!

350 or 454? I'd assume they're in the same spot on either? Can grab a location pic on my '88 tomorrow if I can stuff the camera in there. Has a 350.

**57NAPCO** · 12-08-2020, 07:58 PM

Quote:

Originally Posted by 5Tractorguy

350 or 454? I'd assume they're in the same spot on either? Can grab a location pic on my '88 tomorrow if I can stuff the camera in there. Has a 350.

It’s a 454,

I just did an engine overhaul/reinstall on my 87 V10 5.7 a couple weeks ago and I know exactly where it is on that truck. This one, can’t find it....actually don’t think there is one ?

5Tractorguy · 12-09-2020, 05:02 PM

Quote:

Originally Posted by 57NAPCO

It’s a 454,

I just did an engine overhaul/reinstall on my 87 V10 5.7 a couple weeks ago and I know exactly where it is on that truck. This one, can’t find it....actually don’t think there is one ?

I do have an '86 K30 with a 454 too. The oil gauge in the dash doesn't work so the previous owner ran an aux dash gauge and a copper line to a fitting on the front of the block... just about next to the harmonic balancer. I don't remember if the sending unit for the factory gauge was there too...

If you're still having trouble locating, give me a holler and I'll take another gander.

**AussieinNC** · 12-16-2020, 11:20 AM

Depending on application, the 454's can have the oil pressure switch located just above the oil filter or drivers side of the block near front of engine....

I believe they moved the location to ease access, especially on Camaros and RV's....

**57NAPCO** · 12-18-2020, 11:33 PM

Just finished bolting the bed back down, both tanks working and I don’t know what I did

I replaced the bad left tank fuel pump which I haven’t used in years. I’ve run off the right tank only and that’s the one that left me stranded, pump was fine in it. I unplugged every connection from the fire wall back and maybe that was it, oh well, I’ll drive it tomorrow.

Not the easiest one man job I’ve done....

Thanks for all the help !

**rs74** · 12-04-2021, 03:08 PM

Would still like to have that in my garage. LOL. Been thinking about looking for another one and this one always comes to mind only second to the 86 that I shouldn't have sold.

**57NAPCO** · 12-04-2021, 03:42 PM

Quote:

Originally Posted by rs74

Would still like to have that in my garage. LOL. Been thinking about looking for another one and this one always comes to mind only second to the 86 that I shouldn't have sold.

**57NAPCO** · 12-08-2021, 09:35 PM

rs…..

https://www.facebook.com/marketplace...8031521921877/

**rs74** · 12-12-2021, 03:42 PM

Quote:

Originally Posted by 57NAPCO

rs…..

https://www.facebook.com/marketplace...8031521921877/

I just now saw this. Looked like a nice build.

12-02-2020, 09:17 AM	#1
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,234	1988 K30 fuel pump replacement, lifting the bed.... Still not great access to the pump/sending unit(s) but I think I can get em out? Last edited by 57NAPCO; 12-02-2020 at 09:49 AM.

12-02-2020, 12:15 PM	#2
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,221	Re: 1988 K30 fuel pump replacement, lifting the bed.... Mine was a 1/2 ton swb, but I still ended having to drop the tank. Luckily I have a transmission jack that was used to raise and lower the tank. Of course you always need to do it right after you fill the tank. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

12-02-2020, 03:39 PM	#3
Honest Bob Registered User Join Date: Jan 2017 Location: Easton PA Posts: 219	Re: 1988 K30 fuel pump replacement, lifting the bed.... If your going to drop the tank one of these makes short work of nearly emptying the tank once you get it going. https://www.harborfreight.com/self-p...ump-47334.html __________________ 1975 GMC C35 - Junk yard survivor. 1986 Pampered Private - M1009

12-02-2020, 07:21 PM	#4
5Tractorguy Registered User Join Date: May 2015 Location: Central Massachusetts Posts: 496	Re: 1988 K30 fuel pump replacement, lifting the bed.... Should be able to get them out at an angle... I've had the sending units in and out of my '88 K30's tanks more than I'd like to admit. They're about the same distance away from the cab as what yours are. Tight, but can be done! __________________ Jake 5Tractorguy on Youtube

12-08-2020, 04:17 PM	#8
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,234	Re: 1988 K30 fuel pump replacement, lifting the bed.... Trying to locate the oil pressure switch on the back of the engine. Next to or behind the distributor, this a fully loaded truck so that area is a bit full. I laid back there for 20 minutes searching and couldn’t locate it .....aaaarg!

12-16-2020, 11:20 AM	#12
AussieinNC Moderator Join Date: Jun 2017 Location: Cherryville, NC Posts: 2,204	Re: 1988 K30 fuel pump replacement, lifting the bed.... Depending on application, the 454's can have the oil pressure switch located just above the oil filter or drivers side of the block near front of engine.... I believe they moved the location to ease access, especially on Camaros and RV's.... Attached Images __________________ Family and country before all others... 2006 Chevy Silverado (Daily Driver) 2012 Chevy Equinox Last edited by AussieinNC; 12-16-2020 at 11:27 AM.

12-18-2020, 11:33 PM	#13
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,234	Re: 1988 K30 fuel pump replacement, lifting the bed.... Just finished bolting the bed back down, both tanks working and I don’t know what I did I replaced the bad left tank fuel pump which I haven’t used in years. I’ve run off the right tank only and that’s the one that left me stranded, pump was fine in it. I unplugged every connection from the fire wall back and maybe that was it, oh well, I’ll drive it tomorrow. Not the easiest one man job I’ve done.... Thanks for all the help !

12-04-2021, 03:08 PM	#14
rs74 Senior Member Join Date: Jun 2010 Location: Illinois Posts: 2,957	Re: 1988 K30 fuel pump replacement, lifting the bed.... Would still like to have that in my garage. LOL. Been thinking about looking for another one and this one always comes to mind only second to the 86 that I shouldn't have sold. __________________ Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie

12-08-2021, 09:35 PM	#16
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,234	Re: 1988 K30 fuel pump replacement, lifting the bed.... rs….. https://www.facebook.com/marketplace...8031521921877/



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