Common Problems After Changing Fuel Pump and How Fix Them
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- čas přidán 21. 03. 2023
- Common issues that my happen after changing a fuel pump and how to fix them.
Common issues
Difficulty starting the engine
Engine running or idling roughly
Fuel gauge isn’t working properly
Odd noises
*If possible, do a fuel pressure test.
Possible Causes
Clogged Fuel Filter
Bad Wiring Connection
Blown Fuse
Bad Fuel Pressure Regulator
Faulty Fuel Pump
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Fyi if you’re changing a fuel pump on an okder ford ranger and it won’t start after you change it. There is a trip switch button behind the glove box. It will require pulling the glove box out and pressing it to reset the fuel pump. Its an emergency trip switch to prevent engine fire after a car accident. This was on an 06 ranger I found this out.
Tried that didn’t work I’ve changed the relay and pump as well only engages fuel pump when cables are connected idk what to do
Emergency button but you have to pul out the glove box first? 😂😂😂😂😂
Hey this might be one of the most helpful videos ever. It was fast and clear and gave me different possible issues which I've written down to check out. Thanks so much for this video
Awesome explanation, thanks for sharing! Before I start throwing parts at the issue I have with my 2007 4Runner I wanted to see if you have any suggestions or thoughts as to what I'm currently experiencing...sometimes if I sit idle for 15 mins. or so the fuel gauge will drop 1/4-1/2 a tank and sometimes when I go to "fill" up the gauge does not go completely to the 'F'. Any ideas are welcomed.
It needs to be troubleshooted, but that is usually an issue with the fuel pump level sensor located on the fuel pump or the wires going to it.
Thank you so much for this video you saved us a lot of money and time it was the relay all alone after we changed❤
Did it have trouble starting?
15amp fuse had a burnt spot it had a short that would make connection, once found I replaced it and it has been running better than ever I wish that I had found it before replacing two pumps. A cheap ebay pump that was junk and a ford junk yard pump so that means that my original pump was good spent $125.00 for both pumps
I got my gauge from harbor freight and it came with every hook up for just about every car so far every car I I had to work on including Honda harbor frieght is the best option I only paid 30$ for mine if you rent one make sure to check everything is there before you rent it and also make sure the directions are there because if not they will charge you full price and they charge like 150 for the fuel pressure gauge I couldn’t believe it
Thank you, well done!
thank you for the education
If you rent a fuel pressure test gauge it will work for many cars, but not for honda. You will have to splice it into a secondary hose temporarily, or get a special adapter which you can only get from Honda
When you get a chance could you make a video regarding the code P0603 which regards the engine control module?
Thank you great video
Thanks 👍
I just recently change my fuel pump, change my fuel filter, and my truck still will not fire up it wants to, but it won’t stay running. How does the fuel filter hook up? What line goes in and one line goes out
Hi bro i got a CEL on after a fuel pump replacement due to a recall. The mechanic narrowed it down to a cat converter failure. Could this be related to the fuel pump replacement. Car is only 2 yrs old c300 w206. Many thanks for your time.
I learn about what you have taught me. 🙂🙂🙂
Dealership just fixed my fuel pump but I’m still hearing the same noise before the replacement. Is it now my fuel filter?
I had an issue with one of the top two hoses popping out once i cranked the vehicle. Gas leaked around the pump. However, I reattached a couple of times until the pressure was regular again and now the car starts right up.
Check your hoses atop the pump.
Installed callibrated Delphi fuel pump type 1530 after that engine giving very high rpm what would be the reason?
1987 ford e350 van cutaway motorhome, got the whole new fuel pump assembly changed and everything works fine but the sensor, its reading but when left alone and securing everything it drops back down to E and doesnt hold. thought it was getting stuck on the tank or something but tried so many diff things and still keeps happening. the mechanic and me are at an “awe” . starting to feel like maybe its the part itself came possibly damaged but cant see any damage.
Thanks
I replaced my fuel pump recently, and the miles somewhat reset and I’m not sure why, any help?
What does it mean when I sometimes have to hit the fuel tank with a hammer to get it to start?. This is the 3rd fuel pump.
Replaced my fuel pump on my 2004 nissan primera,however i did 15l/100km before and now i am doing 24l/100km.Terrible gas milage for a 1.6 petrol.Any possible cause
Just got done replacing my fuel pump we hooked everything up correctly disconnected the battery filled the tank back up and my range is stil saying 33 miles till empty and my gauge is pointing down
I changed out the fuel pump, the fuel filter and fuel regulator. I’m not getting any gas going to my supply hose going to my my line that goes to the motor
I installed a new fuel pump and a few weeks after having it installed the car started struggling to start. I connected a fuel pressure gauge to it and noticed the fuel line was getting primed when on the on position. The fuel pump must be bad but I am open to second opinions.
Just brought my in-laws 2015 Suburban in after stalling and power issues. Diagnosed as faulty fuel pump. Had replaced. Next day check engine light came on and stalled on side of road. Would start go a few feet and stall. Finally wouldn’t start just cranking. Towed back to the shop. Errrrrrggggh!
Same with my Jeep 4.7 could be crankshaft or camshaft sensors but for me I replaced all of them and still, last thing I could think of are blown fuses or bad wiring
Check engine light came on again before stalling. Codes this time were completely different than first time. Turned out to be a heavily corroded fuel pump control module that had let in moisture and dirt. I’m thinking that was the initial problem not the gas tank fuel pump. Running and starting perfect now.
Consider also when changing the pump that the sealing gasket is seated properly and if the locking ring is the threaded screw type it is tightened enough otherwise you will have an evap leak
Bought a 07 Nissan Murano from a private owner recently. He told me he replaced the fuel pump months prior, but I smell gas every time I turn on the car and drive. Could it be that sealing gasket, or do you think I should check the fuel pressure regulator?
@@AaronCarson-mo1jzcould be coming from anywhere. Hey undermeath or get it up in the air and see if you find liquid fuel leaking from any of the lines or near the tank. Could also be leaking at the engine somewhere
Can you tell me what’s wrong with my fuel pressure? 2018 5.3 65k with high and low fuel pressure pump. I hooked up a guage and the needle was fluctuating. 22-55psi. After I shut the engine off the pressure rises up to 80psi. Thanks
Sounds like a stuck regulator ,that would be on a fuel rail and have a vacuum line to it
I have an 07 Nissan Murano that sends gas fumes through the vents when the car is on. Also every time I put a half of tank of gas in the car, it runs out in maybe an hour or two. Could it be the fuel pump? Or would you think it’s the fuel filter and pressure regulator?
It sounds like there is a leak somewhere. I would get it checked out right away.
Hello I had a question, I just changed mines to my 2010 Nissan Rogue this past Sunday. It was running good yesterday and Sunday. However I wanted to know why today my vehicle randomly stopped based off the rubber attachment to the pump came off and caused gas to leak under the vehicle. Why won’t the rubber stay on the pump?
QUICK connector may need replacing or constant pressure hose clamp is bad!!!!
@@johnjarrel2522 thx 😀👍🏾
Ever figure it out?
I had the fuel pump replaced last year for a bad fuel level sender on my Pontiac Montana. Since then, it’s had a loud ringing sound almost exactly like the low-speed sound a Bolt EV makes for pedestrians (multiple people independently made this comparison). Sometimes it’s so loud I have to turn the engine off in a drive through. Though it’s obviously under warranty the shop refuses to fix or replace it unless the pump out-right fails.
I did notice that it takes a bit longer to start if the engine has only been off a minute or so… like it has to crank a bit more before it starts getting fuel. Could replacing the fuel pressure regulator also fix the loud ringing sound?
The sound is definitely from the fuel pump since you hear it for a second when priming (turn key to run, don’t start) and it becomes constant after starting.
It might be a bad pump, but a clogged fuel filter can block the flow and make the pump work harder and noisy. I would replace the fuel filter and pressure regulator to see if the sound went away.
Installed brand new fuel pump and after a about a week the temperature sensor bunt out, what is causing this, please help? Runs fine but pulls a P0183 code..is it the wire harness?! Lost!!!!
It could be the wiring or a bad fuel temperature sensor. Often, new fuel pumps such as Nissan have a plastic fuel temp sensor that notoriously fails. The metal fuel temp sensor is the one to get.
What is your mind set about cutting the bed for access i have 30 gallons of gas in the tank and I would really rather not have to drop the fuel tank
I just cut a my bed to get to it. It was a little tricky to get the lock ring loose but definitely a time saver. If it was a newer truck maybe not but it was an old work truck 2014 and I have a bed liner to cover it up.
I don't know how universal this is but I just took out the bed liner, six bolts out and slid the bed back, up over the bumper, 95 Ford Ranger. No cutting needed.
@@joolzanzleaux I cut the bottom of the bed and then welded it together and it worked perfectly
Everytime I put gas my car stalls to start it only starts until I press the gas pedal…is that the fuel pump?
please help! i am having problem starting my 2008 honda accord 2.4l . i have to crank 3 or 4 times before it starts. Coils, plugs and fuel pump have all been replaced yet same problem. Hard starting, idles rough, hesitation and lack of power. I need your help
Check fuel relay
2011 v6 3.5 camry. 3 years ago car started to take a second longer to start once every six months and in the last 6 months it stsrted becoming more often like once every 20 starts.
Replaced fuel pump and it seemed all was good till it did it again. Changed fuel filter and yet again the problem reappeared after few days.
Last night i swapped back to the original fuel pump thinking i might have bought a faulty fuel pump even though its a Denso OEM for camry.
I've only ceanked the car 4 times and tartes right up but i decided to search why the car would still hesitate even after fuel filter and pump replacement.
I stopped watching this video half way thru thinking this video aint gonna solve the issue but few minuted later devided to watch the whole video..and then the fuel pressure regulator got mentioned. I havent checked it yet but I'm hoping and I really think the pressure regulator is the culprit.
There's no loss of power, no rough idling, fuel economy is unchanged. If the fuel pressure regulator , as you mentioned, maintains the pressure in fuel line when the car has been sitting but really doesn't affect the running then I'm thinking it has to be the regulator. I'll get one from napa..or should I order from OEM Denso?
This is just a guess, but since the symptoms seem to disappear when parts are changed out, that often points to contaminants in the gas tank, such as rust. That often happens when there is something that keeps clogging the fuel pump and filters.
@@HVAC_Mechanic The fuel tank looks spotless and shiny inside. In a camry its plainly visible for inspection when the fuel assembly is taken out and I took my time inspecting it using my brightest non-sparking flashlight and a tight gas mask. Just purchased the regulator from Napa. Can t wait to install it.
I replaced the filter first, checked my fuses, connected the wires on the fuel pump correctly. Checked relay sensors all had good connection and weren’t blown..but now no spark to the plugs what do I do??
Did you ever figure it out?
Hello I have a 2012 dodge charger change the main fuel pump 2x...both times car run for one day then the pump die...could this be because I didn't change the secondary one...I also change the relay...133k miles on the car...
I have same issue I changed the fuel pump 4th times but again died today,did you find out the problem?
I changed out my fuel pump and filter. I’m not getting any fuel to my supply line going to my motor. What could that be?
U ever figure it out?
I already changed new relay with used fuel pump. But sometimes my car starts right away. Sometimes long crank before it started.
This can happen depending on what stroke the engine was turned off on since it always starts at piston 1 it might just have to crank the crankshaft a few times to get in the right position to start the engine it can normally take 2 or 4 seconds to start if it’s running the the pistons and sometime it can start right up if it’s at the piston 1 immediately
Clench the fuel regulator😂
💯💯💯
Switched both my fuel pumps after it leaking gas. I got it to run when finished but the next day the engine light popped up and it’s telling me the fuel pump sensor b , how can I fix it??? Lmk anything helps
Since the fuel pump was just changed it is likely the wiring harness needs to be re-seated.
@@HVAC_Mechanicso before I had got the code p2066 it said stored, pending and permanent. After I fix the problem with the sensor it only showed permanent, does that mean the issue is resolved but the code won’t go away even if deleted??
Blew out line fuel gauge works new fuel pump comes on but still not pumping gas the gas filter is clean what should I do
What did you find out?
Thanks for your video 🙌
I just changed my fuel pump and fuel filter on my '03 Chevy Silverado 1500 4.3L (because the fuel pump was reading low even after filling up, I had no check engine light. When I finished I had a check engine light and when I hooked up my obd2 I got error codes p0446 (EVAP vent system performance) and p0452 (fuel tank pressure sensor circuit low input).
Do these 2 code together maybe mean something in terms of diagnosis?
Any help is greatly appreciated, I bought all kinds of tools thinking I was going to be able to work on my truck and I feel like I just failed.
-Josh
The fuel tank pressure sensor is located on the fuel pump and likely has a bad connection. It may also be bad but since the fuel pump was just swapped out most likely it has a bad connection. The computer uses the fuel tank pressure sensor to monitor the EVAP system. When it has an issue it will give EVAP codes.
@@HVAC_Mechanic I checked the fuel tank pressure sensor and it barely had a faint glow from the indicator light, I'm thinking that's where the problem is located.
I have a Renault super 5. Mechanical fuel pump. Carburateur. I changed the fuel pump. The old one started leaking, and the car was starting really late in the morning after a few days turned off. Switched to a new fuel pump and now almost doesn’t start and last night it stabled when I got home and never started again. Pump is pumping but fuel doesn’t fill the fuel filter… 🤷🏿♂️🤷🏿♂️🤷🏿♂️ I don’t know what’s happening.
Was the fuel filter replaced? If so, I would check the gas tank for contaminants.
My car runs fine but has P0463 and the guage shows empty. Please help.
A P0463 code is a “Fuel Level Sensor “Or a” Circuit High.” There is likely an issue with the wiring or a bad fuel pump. I would check the related fuses, the harness where it plugs into the fuel pump, and the wiring at the harness with multi-meter.
Ford f150. When I drive, after a while when I give it gas, it starts to choke up and the more I hit the gas the more it struggles but if I tap the gas lightly , it drives normal. I changed the fuel pump but now it’s like small backfires . The gas gauge wasn’t working at first but now the guage works after I swapped the pump out. But it still shuts off, the more gas I try to give it
I recently changed my fuel pump on my is300 and it was fine, perfect even and turned the car on and off for a bit to let the fuel go and circulate. Recently very recently the fuel started to cut off while driving but goes back and now I’m hearing a faintish buzzing down coming from the fuel pump.
Always buy Quality pumps!!!!!
@@johnjarrel2522 found out the reason why is because I didn’t fully push in the hoses where they connected so since my cars pretty clapped out the rattling made them loose. I just took them off and make sure they reconnected by using lots of pretty to make sure it was properly snug. So far no issues and dailying it again no issues
Buick are noted for guadges not working
Rock Auto has the only affordable online pricing with delivery, my 48% discount through ie: LORDCO is 3 times as costly as Rock Auto with delivery...case in point fuel pump & strainer for 2005 hyundai Tuscan through Bakers Auto in Nanaimo b.c Canada cost $101, but Rock Auto has complete new in tank fuel pump assembly...assembly ...for $105 + delivery for $148 in four days delivery through the border. Try swapping out the fuel fuse in the engine fuse box...worked for me after splurging on expected issue...
🥠FleaBay fuel pump ..12 psi
So I have put 2 new fuel pumps in and made sure I have twelve volts going to the pump and I can hear it turn on but it just won't pump fuel out its an 03 gmc 1500 4.8 no one knows what's going on
U ever figure it out
@@johnnyversaci7091 turns out that precision fuel pumps had the wiring diagram wrong for the pump they had the wires labeled for the fuel gage as hot and ground for the pump and that was somehow turning the pump on without pumping anything we swapped all the wires and now it works
Swaped relay a few times, no start. Bypass relay starts and runs. What controls the relay?
It will depend on the vehicle for the circuit that controls the fuel pump as there could be a fuel pump driver module, or it could just power on from when the ignition is on the On position. A wiring diagram for your specific vehicle will be needed to know. Be sure to check if the fuel pump inertia switch has not been triggered.
It's an 01 blazer. I'll check for that switch. Maybe I'll add an add a relay kit.
And DON'T buy cheap fuel pumps off of the internet;if they are TOO cheap you may have issues later on!!!!
Step number one don’t buy Denso fuel pump