2001 Suburban Fuel Pump - Car Forums and Automotive Chat (2023)

MazdaX

01-17-2010, 01:36 PM

So my fuel pump is toast in my suburban and I need to replace it. I found a OEM replacement for 100.00 online and ordered it after hearing a 1000+ quotes from all sorts of repair shops. Anywho , are there any tips or tricks to quickly removing the tank ? I have the walk through from the dealership but sometimes we all find our own short cuts =D

Oh and my starter and my water pump and my rear seal and my tail shaft seal and both sides tie rods haha..god this thing totally took a nose dive.

ADD : This is a 2WD - Single Tank - 1500.

danielsatur

01-17-2010, 01:48 PM

www.alldata.com (http://www.alldata.com), might have the trade secret for fuel pump removal.
New cars have an access panel behind seats, or in the trunk.

Cusser

01-17-2010, 02:57 PM

Mine's a 1994 Sub half-ton, 2WD, but my non-dealer mechanic (Arizona) just changed out the fuel pump on it for like $325 total, he used a genuine replacement fuel pump, not an off-brand. A thousand dollars is WAY too high, unbelievable.

mishalah

01-18-2010, 07:17 AM

So my fuel pump is toast in my suburban and I need to replace it. I found a OEM replacement for 100.00 online and ordered it after hearing a 1000+ quotes from all sorts of repair shops. Anywho , are there any tips or tricks to quickly removing the tank ? I have the walk through from the dealership but sometimes we all find our own short cuts =D

Oh and my starter and my water pump and my rear seal and my tail shaft seal and both sides tie rods haha..god this thing totally took a nose dive.

ADD : This is a 2WD - Single Tank - 1500.

Make sure your "oem" pump isn't from China. They have a life expectancy of about 300 miles from the complaints I read. You'd be just as well off with the Airtex.

MT-2500

01-18-2010, 09:09 AM

So my fuel pump is toast in my suburban and I need to replace it. I found a OEM replacement for 100.00 online and ordered it after hearing a 1000+ quotes from all sorts of repair shops. Anywho , are there any tips or tricks to quickly removing the tank ? I have the walk through from the dealership but sometimes we all find our own short cuts =D

Oh and my starter and my water pump and my rear seal and my tail shaft seal and both sides tie rods haha..god this thing totally took a nose dive.

(Video) How to Replace Fuel Pump Chevy Avalanche Suburban GMC Yukon Cadillac Escalade 5.3L 6.0L 2002-2004

ADD : This is a 2WD - Single Tank - 1500.

Beware of the online 100 pump.
To cheap and may kit or may be after market off brand or imported look alike..:sarcasmsign:
Go to your local parts place and tell them you want a Delphi OEM type pump.
Do not let them sell you a Airtex or off brand pump as they are junk.
Even if they have to order the Delphi pump.

MazdaX

01-18-2010, 11:29 AM

It's an AC Delco / Delphi one. Airtex is crap so are the others. I've already done my research on it.

It's an AC Delco / Delphi one. Airtex is crap so are the others. I've already done my research on it.

You are smart there.

But only a 100$ for one is to good to be good.
Good Luck

Cusser

01-19-2010, 06:44 AM

And labor can't be more than 3 hours, why I question the $1000 quotes.The fuel tank gets lowered a few inches for access.

At two different places, different years, an '88 Sub and a '94 Sub fuel pump replacements were $400 or less. With the '88 (higher price), shop also replaced the fuel pump relay on the firewall as a precaution. Each was 5.7 liter V8 2WD, older one was 31 gallon tank...neither fuel pump needed to be replaced again.

mishalah

01-20-2010, 02:02 AM

And labor can't be more than 3 hours, why I question the $1000 quotes.The fuel tank gets lowered a few inches for access.

At two different places, different years, an '88 Sub and a '94 Sub fuel pump replacements were $400 or less. With the '88 (higher price), shop also replaced the fuel pump relay on the firewall as a precaution. Each was 5.7 liter V8 2WD, older one was 31 gallon tank...neither fuel pump needed to be replaced again.

Would the 42 gal tank on my 4X4 make any difference in procedure?

MT-2500

01-20-2010, 09:00 AM

(Video) Chevrolet Silverado Small EVAP Leak / Fuel Pump Remove & Replace

Would the 42 gal tank on my 4X4 make any difference in procedure?

Fuel pump is mounted in top of tank.
MOST FUEL PUMP REPLACEMENTS REQUIRE THE TANK TO COME DOWN AND OFF.

mishalah

01-20-2010, 11:57 AM

Fuel pump is mounted in top of tank.
MOST FUEL PUMP REPLACEMENTS REQUIRE THE TANK TO COME DOWN AND OFF.

Been there, done that on my T&C van. I was just wondering if GM had a simpler way to do it. On my ZR-1 I can replace both pumps from the panel that holds the fill tube up on the top of the rear body. You'd think an access panel would be almost mandatory given the inherent dangers in removing the tank.

MT-2500

01-20-2010, 01:39 PM

Been there, done that on my T&C van. I was just wondering if GM had a simpler way to do it. On my ZR-1 I can replace both pumps from the panel that holds the fill tube up on the top of the rear body. You'd think an access panel would be almost mandatory given the inherent dangers in removing the tank.

T&C is not a suburban.
A suburban it is remove the fuel tank to replace the pump.
No danger in removing the tank if done right and the right equipement.

But how did your T&C /ZR-1 get 2 fuel pumps?

MazdaX

01-21-2010, 12:47 AM

Also to solve your mystery fuel pump thing. 100.00 is my cost.retail is actually like 275.00. Anywho..I wanted any info on shortcuts to get the fuel tank off not info on bunk pumps. As I already said, i've done my research on pumps.

This tank is big , heavy and looks like a pain in the A to get out especially since its full to the brim with gasoline. Also this suburban is seemingly lower to the ground than other ones of same make / model i've seen.I had to lift the body with a fork lift and put 3 pallets under each of the front wheels just to be able to get to the starter.

I don't have a tranny jack at my disposel but I have a super nice fork lift =D Also are the hose clamps on the 2001 models for the fuel pump module the quick connect style or are they the typical ring clamp ? I'm not too concerner about breaking the elbows for the shot fuel pump but i'd prefer not to screw up the hoses.

On another note - I had an alignment done before crap hit the fan and it was all groovy but it suddenly got insanle hard to steer to the right @ random times and perfectly normal for straight and left hand turns. WTf is wrong with this thing ?

mishalah

01-21-2010, 02:42 AM

T&C is not a suburban.
A suburban it is remove the fuel tank to replace the pump.
No danger in removing the tank if done right and the right equipement.

But how did your T&C /ZR-1 get 2 fuel pumps?

(Video) Lag, Hard Start, Stall? Diagnose Car & Truck Low Fuel Pressure!

The T&C van has only one fuel pump, but it also requires dropping the entire tank to get at it and the sending unit. I'd guess it's similar to dropping the Suburban tank.

The ZR-1 has two pumps because it has two sets of injectors. The primary pump is always on and feeds the first 8 injectors while the second pump kicks in with the second set (normally around 3000 rpms). That's because the LT5 engine requires a lot of fuel and air at WOT and one pump just doesn't cut it. It's interesting that GM (actually Mercury Marine/Lotus) felt the big block Suburban pump was best for pushing all that fuel at 7000+ rpms. Apparently, they had a lot of confidence in the Delco pumps. At least they had the sense to make them accessible if one or the other failed.

mishalah

01-21-2010, 02:45 AM

Also to solve your mystery fuel pump thing. 100.00 is my cost.retail is actually like 275.00. Anywho..I wanted any info on shortcuts to get the fuel tank off not info on bunk pumps. As I already said, i've done my research on pumps.

On another note - I had an alignment done before crap hit the fan and it was all groovy but it suddenly got insanle hard to steer to the right @ random times and perfectly normal for straight and left hand turns. WTf is wrong with this thing ?

I'd check your tires for a slipped belt or separation. Far too many tires are also coming in from China and are not the same quality as we were used to.

MT-2500

01-21-2010, 09:01 AM

Also to solve your mystery fuel pump thing. 100.00 is my cost.retail is actually like 275.00. Anywho..I wanted any info on shortcuts to get the fuel tank off not info on bunk pumps. As I already said, i've done my research on pumps.

This tank is big , heavy and looks like a pain in the A to get out especially since its full to the brim with gasoline. Also this suburban is seemingly lower to the ground than other ones of same make / model i've seen.I had to lift the body with a fork lift and put 3 pallets under each of the front wheels just to be able to get to the starter.

I don't have a tranny jack at my disposel but I have a super nice fork lift =D Also are the hose clamps on the 2001 models for the fuel pump module the quick connect style or are they the typical ring clamp ? I'm not too concerner about breaking the elbows for the shot fuel pump but i'd prefer not to screw up the hoses.

On another note - I had an alignment done before crap hit the fan and it was all groovy but it suddenly got insanle hard to steer to the right @ random times and perfectly normal for straight and left hand turns. WTf is wrong with this thing ?

The Delphi fuel pump module for a 01 -1500 suburban list for 567.78$ and cost on it is around 273.86$ US dollars.
If the one you are getting at 100$ cost it is not the complete module.

If just the pump without the complete fuel module/sending unit it is a poor choice.
THE COMPLETE MODULE NEEDS TO BE REPLACED.

If hard to steer after a alignment take it back and let them lick there calf over.

sub006

01-22-2010, 02:23 AM

[QUOTE=MazdaX;6096521]Also to solve your mystery fuel pump thing. 100.00 is my cost.retail is actually like 275.00. Anywho..I wanted any info on shortcuts to get the fuel tank off not info on bunk pumps. As I already said, i've done my research on pumps.

This tank is big , heavy and looks like a pain in the A to get out especially since its full to the brim with gasoline. Also this suburban is seemingly lower to the ground than other ones of same make / model i've seen.I had to lift the body with a fork lift and put 3 pallets under each of the front wheels just to be able to get to the starter.

I don't have a tranny jack at my disposel but I have a super nice fork lift =D Also are the hose clamps on the 2001 models for the fuel pump module the quick connect style or are they the typical ring clamp ? I'm not too concerner about breaking the elbows for the shot fuel pump but i'd prefer not to screw up the hoses.

You really want to get the truck on a lift to do it right. My first pump went at 150,000 miles, shop charged $300.00 labor to drain and then remove more than half-full tank.
On another trip, again far from home, at yes, 300,000 miles, shop only charged $150.00 because they used a transmission jack to lower the almost-full tank without draining, saved a lot of time.

Now I'm at 452,000 and thinking I should fabricate an access panel in the floor!

MazdaX

01-22-2010, 09:05 PM

(Video) CHEVY & GMC FUEL PUMP REPLACEMENT!!

Well I can lift the suburban as high as I need to and the guys down the complex are willing to weld me some custom stands to set the frame on for 50.00. This is why I am most likely going to use the fork lift. It has angle / side shift/ up down , L/R tilt so I can get the lift in there however I have to.

Should I be concerned with some sort of special tools needed for this job ? I have all my basica hand tools and a few power & air tools to remove larger fasteners. I have enough hand tools to strip my ( now sold ) eclipse down to bare bone =D I just know how GM likes to screw with all the DIYers and make special nuts&bolts and connectors that require a spendy tool for a small job and I am wondering if I can expect any of that with the tank or is it pretty much a walk in the park like everyone makes it sound ?

MazdaX

02-04-2010, 04:30 PM

ok so i've got the tank disconnected from the filler neck , straps are off and the only thing left is to disconnect the evap and pressure lines and there is a strange loop blocking the 'inner workings' of the connectors. Do I need a GM specific tool for these and if so whats the name of it ? or a part # so I can snag it from Autozone or something.

Also how many lines are there that actually need to be disconnected ? I can only see one and the wire harness. I don't have the tank down all the way so I can't completely see 360 around the tank but just enough to see the wire harness and on the front of the tank by the evap box sitting next tot he drive line.

I would like to have this all wrapped up by tomorrow if possible so any speedy feedback is appreciated =D

MT-2500

02-04-2010, 05:24 PM

The wire connector may have a saftey sliding tab red in collor if so remove it and push down on wiring plug lock tab.

I am not a speedy person.
But.
If you got all line disconnected just unplug the wiring plug.
Always check front and rear of tank for vent hoses.
Also some fuel pumps require a new wiring plug in kit

MazdaX

02-05-2010, 10:07 PM

Wow this was way easier than I expected it to be. And for the fuel removal I just used a mini-pair of needle nose pliars and it worked like a charm. All said and done , only took 3 hours of work.Yay for life returning..haha.

MT-2500

02-06-2010, 08:48 AM

Wow this was way easier than I expected it to be. And for the fuel removal I just used a mini-pair of needle nose pliars and it worked like a charm. All said and done , only took 3 hours of work.Yay for life returning..haha.

Thanks for posting back how it went.
Not bad time.
Is all running good and well now?
I always like to recheck fuel pressure after fuel pump replacement.

Good Luck

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