2000-2004 Impala (8th Gen) Fuel Pump Replacement
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- เผยแพร่เมื่อ 5 ก.ย. 2024
- In this video, our decrepit 2004 Impala, "Fred" has died in the driveway in the dead of winter, and is in need of a fuel pump transplant. The fuel pump had been intermittent in the days prior, only working when the weather was slightly warmer. I was able to diagnose the fuel pump as being the culprit by having someone crank the engine over whilst I sprayed starting fluid into the exposed throttle body. By getting it to start on the starting fluid (and it immediately dying afterward) there was simply no need to hook up a fuel pressure gauge or spark tester. Kind of bass-ackward detective work, but the behavior of the vehicle in the days prior raised my hackles.
So you fine TH-camrs get to watch as I pop open the access hatch (thank Christ for that "innovation"!) and replace the entire fuel pump module without dropping the gas tank.
I purchased the fuel pump from Amazon, foregoing a mega-expensive Delphi unit and instead going with the highest rated pump that was reasonably priced. This is a deal where I'm only looking to get a few years out of the pump, as the car is getting rusty and racking up the miles.
Fuel Pump from Amazon: www.amazon.com...
I also replaced the Fuel Pressure Regulator and the Fuel Filter at the same time, however the replacement of those 2 items will be in the next video. • 2000-2005 Impala (8th ...
It has been brought to my attention by several commenters that 2005 model Impalas do not have the access hatch present inside the trunk. I have not been able to confirm yet if this was for all 2005 models, or if there was a specific date range or model availability. I have thusly changed the title of the video to reflect that this should apply to the 2000 through 2004 model years.
Thanks for watching! Any questions or comments, please post below. If you found this informative or helpful in any way, give a the video a thumbs up! Be sure to check out my other videos and hit the subscribe button!
Music in this video is from www.bensound.com
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It has been brought to my attention by at least 2 different commenters that 2005 model Impalas do not have the access hatch present inside the trunk. I have not been able to confirm yet if this was for all 2005 models, or if there was a specific date range or model availability. I have thusly changed the title of the video to reflect that this should apply to 2000 to 2004 model years.
Im only changing the float cuz my gauge is off
@@puprilla Are you sure it's the float and not the gauge? The stepper motors inside the clusters of this era of GMs are notorious for going bad.
@@CertifiedShadetree idk the float was like 40$ lol and im already changing or really just now changed the pressure regulator so i figured id give that a shot before pulling the dash apart, im assuming its the float cuz when parked on a hill it says its low on gas but when driving on flat roads it works better
My 04 has 130k on it but fully rebuilt and tuned motor so its only little shit like this that ive been fixing lately if the float dont work ill do the stepper motor or whatever gauge system i need i just like to replace as much stuff as possible to make sure this car runs forever i paid 15k after taxes and interest 5 yrs ago for the car so i want to see 400k or more on the dash
@@puprilla What engine does your Impy have? I've had mine for 14+ years and it has just over 205k. Motor (3400) and trans are still mint, but the only reason I don't believe mine will ever hit 400k is it's lived its whole life in Minnesota and will be obliterated into a rust pile before getting a chance to rack up that many miles!!
It's 2023 and this video still helping people out thanks bro 💯
🍻
Great video I need to change the pump in my 04 this helped thanks
Glad I could help!! 🍻
I have to do mine did it work on yours? I got a 2004 too
Wow! You tube is a life saver when it comes to car repair in most cases, I was already agonizing about dropping the tank. It only makes sense for there to be an access cover back there. Now I know I can do this job more on the sly in our apartment parking lot lol! This should be a ball with my severe copd I can barely put my shoes on without dying, but it should still be fun. As for sparks and gasoline, we all have done dumb things, we routinely cleaned our hands and tools in a bucket full of gas, I was last one into the shop for lunch break, stuck my greasy ratchet and hands in to almost my elbows when out of the corner of my eye I saw our little vietnamese helper flick his cigarette right into the gas between my arms. it some how didn't blow up. If it had hit the side and sparked the outcome would have been very different. In hind sight I should have broken both his arms, I was barely 18 and just thought it was a bad joke. Way later I woke up to the fact that that kid really tried to kill me, I still shudder to think of it.
Thanks for sharing that story! I myself could definitely fill a book with all the stupid shit I did back in my youth!! 🤣
So no smoking on this job thought do on hot day so could produce as much vapor in my enclosed garage
Thank you for this video Because the idiot that sold me my fuel pump said that I had to drop my fuel tank to get access to it
Best of luck to you!!🍻
Would it have killed gm to make that access panel a little bigger?
I wish GM had kept the access panel altogether on the 9th Gen models!!
I noticed that your gas gauge was still pegged on empty on a full tank of gas. Did it ever return to a working gas gauge? My gas gauge is stuck on empty, but the car runs great...
It worked fine after installation. I don't recall there being much gas in the tank to begin with.
Also,if you stick a wand style magnet down in the tank,you'll be surprised how much crud sticks to it. Cleans the tank some.
That's not a bad idea!
@@CertifiedShadetree Thanks,I done that just yesterday.
My Sons 03 w/3.8 was having stalling issues awile back. I replaced ignition switch, all was fine. 130k I work on stuff alot, car would die. Sit restart all would be ok stall again. Then ran fine.
Have you checked the IAC (idle air control) motor?
@@CertifiedShadetreeCleaned it today was a little black, did the bore also. Did find ground off battery to frame had big resistance, cleaned that, all o's on ohm. Might have been problem, thanks for responding
Hope that fixed 'er! 🍻
Bad ground under hood, that attaches to so called frame. Great since
Why is the gas gauge reading empty after the repair when tank appeared to be full ? Bad sending unit ?
I would suspect so. The wires on the side of the pump assembly that run from the top harness connector to the sensor are tiny and fragile, and might've broken off. Also the 2 little "fingers" on the pivot of the sensor might not be making contact (or they're broken off.) If your old sensor one was working, you might be able to swap it over, assuming you kept the old pump assembly.
Thanks!
Thank you!! 🙏
Very helpful
And it was right where you said it was too, now I gotta get a small brass punch to remove the ring off. Gone fix my co-workers fuel pump so he can his own ride to work
So tell me why gas gauge shows E. In the tank is full. How do u work the guage
11:56 I show the float for the gauge, and at 14:04 I show how it moves. If you look closely you can see there's a "grid" with 2 wires poking out of it. The other side that the float arm is attached to has 2 little fingers on it that rides along the grid and sends the signal to the gauge to show the fuel level. What tends to happen is the 2 little fingers break off, causing the gauge not to read properly. You could purchase just the repair kit to fix the gauge, but you still have to remove the fuel pump to access it. I say just spend the money on a new fuel pump instead, since it's a good possibility you'll need to replace it soon anyway..
How do you let the backseat down
If you don't have the split-fold seat backs, pull up on the bottom cushion along the front edge to remove it, then remove the bolts that hold the upper cushion in place, lift up and out.
Is this a 3.4?
@@T_733 Yes.
Maybe someone here could help. 03 impala 3.4L code P0404 already changed EGR valve, Purge valve, air and fuel filter. Its struggling to build speed and hesitates to shift. Also every once in awhile feels like it jerks forward and back while driving
MAF sensor giving an erratic reading, perhaps? When something would appear on the surface to be a fuel delivery issue, check the MAF. Clean it, check the wire harness going to it, and check the intake tube for leaks..
When I put the lock ring back on it either blocks a electrical connector or cant be put on Cuz it hits the fuel lines
You have to put the ring back on before you connect the fuel lines and electrical connectors..
@@CertifiedShadetree found out I either have to cut those nubs or just replace it so I'm gonna replace it
Not a bad idea, especially if it's all rusted to hell..
can you tell me are the lines that connect to the pump are nylon lines and if you know do they go down to the fuel filter area? i have to change the fuel line the return and vapor lines and i really do not want to drop the tank for that job. looking at the pump it looks line these all are nylon lines and i'm hopping they are nylon down the the filter area. i do not have the car in my garage it is a friends car. thanks
Yes, the line running to the inlet of the filter is plastic. The line leaving the filter is steel.
@@CertifiedShadetree thanks are the other 2 plastic as well? i see repair kits online and ebay and that is a 3 line set that looks like they all start at the filter location, so i'm hoping that all 3 lines are nylon at that area and then plug into the repair lines. thanks
@@bobpalmer4740 I believe the 3 hoses are for supply to the rail (this one goes thru the filter), return to the tank, and to the vapor canister.
Have you had any problems with this fuel pump yet? 50 bucks is a way better price than the name brand variant
I sold the car about 2 years after I made the video, and the pump was working just fine at the time. It never gave me any issues in those 2 years either!
Was the car not cranking any more when you’re pump went out like you turnt the key and their was no click or anything??
It cranked but wouldn't fire.
How did you end up removing the rectangular connector? I'm having trouble getting it off the pump.
The electrical connector? The new pump should have a replacement connector included, due to the tendency of the original fusing itself to the pump..
why does your gas gauge show empty if you had a full tank?
The little "fingers" that ride along the rheostat on the float are either severely corroded or have broken off.
HI, how was your pump since then?
Sold the car 2 years after installing this pump, and it was still going strong..
People need to be careful with those pump wires and secure them. If they drop down they'll have to remove the tank. No fun at all.
For sure! Unless you have really skinny wrists..🤣
@@CertifiedShadetree REAL skinny wrists.🤣
🤣🤣🤣
Your going to have to pull it back out fuel Gauge shows Empty.
Or instead of that, just fill up the tank!!
@@CertifiedShadetree The tank was full when he changed it?
@@dorsiegibson8628 There was barely any gas in there..
05 doesn't have access panel
The access panel went away with the 06 redesign. 05 should be identical to 04, with the access panel.
@@CertifiedShadetree I was definitely wishing that lol... I've got an outline where the access panel should be but it isn't cut. And there aren't any bolts holding it down. It looks like yours but just not cut to take it out.. I've got a 05 impala base 3.8... My luck its probably just my model that doesn't have it lol
@@brianj5261 Well ain't that some shit! There's someone at my work who has a base model 05 with the 3.4, I should ask if they could let me have a peek at their trunk. Could be a deal where the 3.4 has the hatch and the 3.8 doesn't. It's strange to me because "Old GM" (pre-bankruptcy) always used to carry over the last model year of a vehicle from the previous unchanged.
@@CertifiedShadetree 05 Impala with 3.8l here. No access panel as the previous commentor said. Cut out is there, but it's welded. No bolts. So either risk blowing up the vehicle and making your own, or drop the tank. My impala is a Vin K model to be exact. (Police package.) So it's a 2005 Impala, 3.8l, Vin K model. There's absolutely no way around dropping the tank unless you make your own panel as I said. I literally JUST got done (about 30 minutes ago) taking all the trunk lining out, spare tire, etc. Again I see where the access panel should be. But absolutely no way to open it without cutting it. And considering my issue is EVAP P0446, wouldn't be wise for me to cut anything around the gas tank. So it means finding a mechanic friend with nice jacks and dropping tank. (I hate working on cars that are lifted up without a proper lift. As I've had a death in the family due to not being absolutely safe with jacks. Jacks/jack stands make me fucking nervous but I'm shit broke and can't afford a shop mechanic to fix the issue.)
PS: I already replaced the Vapor Canister Vent Solenoid right near the gas cap. So it's either Fuel sensor, or Vapor Canister Purge Solenoid.
@@xPreatorianx1I should just change the model years in this video to 2000-2004. May I suggest buying an electric sheet metal nibbler? You could carefully drill a hole away from the "hump" and use the nibbler to cut around the perimeter of the hump, therefore avoiding any sparks or any danger of jacking the car up. I actually did this before on an old S-10 Blazer (and ended up having to cut out a cross-bar that ran directly above the fuel pump!!) I bought a 1ft square piece of sheetmetal and riveted it back in place over the hole I cut out. Come to think of it, a pair of tin snips would work too, but it would be very tedious...
Same color as mine
Victory Red!!
That’s what mine is too
i see you changed the fuel pump, but i dont think is the same as on a 2012
I found your channel 2hrs ago and been binge watching your channel. Thanks for the vids btw.
Question; just bought a 2012 impala police 3.6 liter and it dose not mark the gas on the gauge, im thinking is the floater and i was going to switch out the whole fule pump but, is like $ 400!!!!!. any suggestions on what it is or better way to fix/find out
Sadly, all W-Body Impalas from 2005 on need to have the tank dropped to change out the fuel pump. ☹
@@Elmaffioso187 The rheostat for the float has two little fingers on it that can break off. Rockauto has a replacement piece for the 2012 for $47. I think if it were me, I'd go the distance and spring for the whole pump assembly, due to the hassle of dropping the tank (you have to pull the pump anyway, might as well replace the whole thing!) Rockauto has a Delco pump for $180. Pretty reasonable if you ask me!
@@Elmaffioso187 Another thought: When you gas up, fill the tank all the way, then reset one of the trip odometers. When you get to 300-350 miles, it's time to fill up again...
@@CertifiedShadetree Thanks for the reply guy! yeah that is what i been doing tracking my fuel with the trip meter 😅😅. But yeah might as well switch out the whole thing.
I was going to buy it from there Rock Auto, thats my spot to shop! but i was gonna go to a O'Reilly's close to home to get a lifetime warranty. they say they brake down often, what you recommend?