Passat (B6) :: Fuel Pump Failure?
I am curious as to what are signs that a fuel pump is about to fail?
View 11 RepliesPassat (B5) :: Car Quit On The Road, Bad Fuel Pump Diagnosed
The car quit on the road and I diagnosed a bad fuel pump. Multiple tests confirmed the pump had failed. While we were doing the diagnosis, I noticed some strange behavior when monitoring voltage to the pump. While supply voltage was present during cranking, none was applied to the pump when the key was first turned to accessory. I decided to chase one thing at a time and replaced the pump (and fuel filter, since it had been too long since last replacement and I wanted to "cover all bases").
After pump replacement, I opened the coupling in the supply line before the fuel rail to confirm proper operation. When the key was initially turned to accessory (multiple times to prime everything), there was NO fuel flow. When we then cranked it, fuel was present very quickly. After reconnecting the line, a couple of rounds of cranking got the fuel pressure up and the car started and ran perfectly. A quick VAG-COM check showed no codes. I test drove it and then shut it down. Immediately after shut down, I switched the key to accessory and the fuel pump started right up. After doing this 4-5 times with a few minutes pause in between, I pronounced the car "good" and finished up.
This morning, I jumped in, turned the key to accessory and heard......nothing. No fuel pump running for the normal 2-3 seconds. I cranked it and it took two rounds of 4-5 sec cranks for it to fire and run (normally). I assumed it needed time to build fuel pressure. I then drove it for 20 minutes, parked it for 45 minutes and when I restarted it, it took a longer than normal crank period (maybe 3 seconds) to fire and I did NOT hear the pump run in accessory position. The rest of the day was with short stops and I could always hear the pump start in accessory and the car always fired up instantly. I have the Bentley CD and analyzed the wiring harness. It looks like the fuel pump relay is only commanded to operate by the ECU - there is no external input to the relay coil I can see (ground or B+).
The bottom line is that SOMETIMES the pump is commanded to run in ignition switch accessory position and sometimes it isn't. The "isn't" always seems to be after the car has sat for a while. Is there any combination of failed sensors that would cause the ECU to NOT command the pump to run for it's few seconds in accessory position ? Obviously, the next step is the FP relay but I hate to just throw parts at the car without some sort of troubleshooting and the repeatability of the problem with sitting time leads me to believe it may be more of a relay DRIVE problem then the relay itself.
Ford 6.7L Power Stroke Diesel :: Aux Fuel Gauge And Fuel Pump Both Quit
I have my aux fuel tank pump hooked to upfitter 3. It has worked perfectly until this week. I started to transfer fuel and the aux fuel gauge and fuel pump both quit. The led on upfitter switch 3 still illuminates, but no fuel pump. I found fuse 9 on passengers kick panel is for upfitter 3. The fuse was good. Is there another fuse somewhere for the circuit I've missed? I can trouble shoot the wiring if necessary, but it's tough to do all behind the left side underbed box and not easy to get to. I've missed something simple before I go further????
View 14 RepliesVolvo :: Electric Fuel Pump Relay Quit Intermittently?
i have had this problem before where the relay for the electric fuel pump would quit intermittently, and had it fixed. but, i suspect this is acting up again. so, i was gonna do it myself. there are 2 relays strapped to the radiator overflow can. is one of them the relay i am seeking?
What started all this, motor was running really rough at idle, but ran ok once moving. So, I replaced the spark plugs, and cleaned the contact areas in/on the cap and bug. motor started right up, and actually sounded good... for about 10 or so seconds, then it died, like the gas was shut off. I do have spark.
How to check/test the fuel pump relay and could pass this info on to me would be good. i do have test light, and DMM.
Gasoline - Chevrolet - Blazer :: 2001 - Fuel Pump Quit Again?
I replaced the fuel pump in my 2001 chevy blazer last year and it just quit again two days ago. Internet research leads me to believe it is a common problem in chevy turcks. Blazer stops running, sits for a few hours to a day and then starts up again. Is it going to happen again and is it really the fuel pump.
View 4 RepliesSonata I45 (YF - 2011+) :: High Pressure Fuel Pump Failure
My 2011 has just over 27K miles on it. On Saturday the Check Engine light came on. The next time I started the car, it cranked over for about 5 seconds before starting, which is unusual. Then multiple times Sunday and this morning, it seemed to take even longer to crank before starting. This morning, it barely would stay running. And there was a lot of hesitation driving down the road.
I scanned it with my OBD II scanner and got P0087 (Fuel Rail/System Pressure Low). I dropped it off at the dealer this morning and jut got a call that they are replacing the High Pressure Fuel Pump. But they had to special order it overnight and probably won't have it replaced for another day after that.
Is the high pressure fuel pump the device sticking out the top of the valve cover on the back, driver side of the valve cover, with the multiple fuel lines going into/out of it?
Ford - Escape :: 2004 - Fuel Pump Repeated Failure
Got this 04 Escape 3.0 FWD for my son's first car. It was his mom's and she drove it for years and parked it when she got another car.
I charged the battery and it is holding a good charge. Car would crank but not start. Fuel pump was not coming on. I pulled it out and applied 12V to the connector terminal and it started running so I put it back in and it worked fine.
Drove it home and cleaned it up, pulled out the bad window regulator, put it in the driveway till the next weekend.
After it sat for 3 days it would not start again. The fuel pump was not coming on. I assumed that the old pump that I revived had died again so I bought a new one and put it in and it ran fine.
Went for inspection but OBD2 was NOT READY so I drove it about 60 miles until it threw 3 codes. P0136, P2270, P2271 (O2 sensor problem).
I parked it again to wait till my next chance to work on it. 3 days later I was going to replace the O2 sensor but when I tried to start it the new fuel pump was not coming on again. (2nd fuel pump to die while sitting in the driveway).
So I figured the new fuel pump was a dud maybe, so I returned it and got another new one and put it in and it worked fine again. So I replaced the O2 sensor. Didn't have time to drive it 60 miles again to READY the OBD2 system for inspection so I parked it for a couple more days.
2 days later I was going to drive it around to make the OBD2 READY for inspection and again the fuel pump does not come on.
3 dead fuel pumps doesn't make sense to me so I have been considering it could be the Fuel Pump Driver Module but have read that's not an issue on the Escape like it is on the trucks. Plus I have been unable to locate where it is on this vehicle.
Ford Aerostar :: Fuel Pump Secondary Circuit Failure
I got a code for Fuel pump secondary circuit failure, how do you fix it? 1990 Aerostar 4.0 2wd with A/T and A/C
View 14 RepliesPassat (B5) :: 2003 - Will Start But Turns Off Right Away - Computer Or Fuel Pump?
My 2003 Passat 1.8t starts up but turns off 1-2 secs later. And if it is the fuel pump, where is it on my car?
View 4 RepliesChevrolet - 1500 :: 1997 Chevy Truck V8 Fuel Pump Failure
Several years ago I had to replace the fuel pump - truck had about 100,000 miles. Within the last 4 - 5 months I have replaced the fuel pump twice and just today (about two months since the last replacement), the fuel pump has failed again. That has been the pattern now for the last several months. I have had the work done by one of the reputable car repair shops in town - they have also done work on my 2004 Impala with no issues with the repair. There must be something else going on besides just the fuel pump going bad. What would cause so many fuel pump failures.
View 16 RepliesFord Excursion :: Fuel Gauge Sender Quit Working - Pump Assembly Replacement?
The fuel gauge sender quit the other day so Im replacing the pump assembly. I believe in replacing fuel and ignition related parts with factory equipment. So I was going to get a Ford Motorcraft pump, but my wife checked for one through her work(local parts store). The counter guy found one that said original equipment, called them and was told "It is the same pump that gets installed on the assembly line". Well it came in today and its a Delphi. I was expecting a Ford pump. I associate Delphi with GM and I know GM pumps go out all the time. I know Ford pumps go out too, but I know several people with GMs that have replaced pumps multiple times within 100000 miles. Is Delphi worth taking a chance on?
View 6 RepliesPassat (B5) :: 2003 GLS V6 Suddenly Stalled In The Middle Of Road - Fuel Pump Busted
Yesterday, for the first time ever, car had to be towed to the dealership for some major problem. My dad was driving to work with his car , a 2003 GLS V6, and suddenly it stalled in the middle of the road. Turns out it was the fuel pump that caused it. Never mind the expenses which is ridiculously high and can't do anything about it (yes, i'm loyal to my dealer). His car had 129399kms on it plus a km to the dealer and mine had 70136km for a 2002 GLS V6.
View 2 RepliesTiguan :: 2012 - Loss Of Power / EPC And Check Engine Light - Fuel Pump Failure
Well I had the dreaded loss of power and EPC/Check Engine light happen on Monday. Was driving down the Interstate and all of sudden we just lost power. It did not go completely dead, but it ran like crap. Called the local VW and they advised to bring it in, still under warranty (27k, 26mths) and it turned out to be the high pressure fuel pump. They replaced the pump and the replacement was bad! Luckily they tested it before they got it out the door back to me. Provided me with a loaner and the dealer had to get a replacement pump overnight. Picked up the car yesterday and everything drives the way it should again.
I had already had the software update, but according to the service advisor that was for the fuel pump in the tank, not the one on the engine. Not sure if that is correct, but that is what the advisor told me..
Ford F-150 (2004-2008) :: Code P1237 - Fuel Pump Secondary Circuit Failure
ok i was just driving my 2004 ford f150 truck and it stopped running. I turned the key and it started back up again and then while on idle it stopped again. I took it too auto zone and it showed a code of p1237 which as far as i can see says fuel pump secondary circuit failure. does that mean i need a new fuel pump and how hard is it to replace.
View 1 RepliesFord Ranger / B-Series :: 1992 2.3L - Sputtered Briefly And Motor Quit Running - Fuel Pump Bad?
Truck quit running yesterday suddenly and unexpectedly. It sputtered briefly and the motor total quit running. I pulled over and tried to start and it briefly fired but then totally quit. Got towed home. And now testing to see what all to repair..Thinking fuel.
I don't get any codes from the tester with KOEO..just the good to go etc..no codes or the good to go 111..etc. Guess this problem can't be identified without motor running.
My wiring diagram doesn't give me all for my Calif car..I don't see where the relay is but my fuses are all good, and I'm getting voltage when I crank the motor at that inside firewall switch on both its wires(incoming/outgoing)..forget what its called..Inertia Switch?..that will shut off fuel pump during accident or impact etc. And I've read that this switch is upstream of the relay(if I read that post correctly) so guessing it's the pump itself that is bad.
Does that sound right? Should I go ahead and pull the fuel tank etc and replace the pump? Or is there more testing I should do? When I turn the ignition key on..the pump makes zero sound. That's not the way it normally operates. Usually with the key on the fuel pump comes on momentarily and I can hear it. Forget how to drain the fuel tank etc..I don't see a drain plug? I did it once many years ago..but forget how?
Passat (B6) :: Bolt Failure On Oil Pump Assembly?
Bolt failure on oil pump assembly in 2.0t FSI engine
View 9 RepliesFord Super Duty (1999-2016) :: 2010 F250 - High Pressure Fuel Pump Failure
I have a 2010 f250 6.4 About two months ago the truck just quite on me. I am a farmer in south jersey and have a decent background in diesel motors. First thing that came to mind was fuel. I assumed I was having a fuel issue (clogged filters, failed pump, etc.) truck only had 45,000 miles on it so I took it to my local dealership for what I assumed would be a warranty job. I dealer service all my trucks while under warranty. Long story short I was told it was a fuel contamination issue which scared the walls of the hpfp throwing metal pieces into the injectors, fouling them.
I would need all new injectors, fuel rails etc. as well as new filter housings, fuel tank cleaning, etc. I had receipts for every drop of fuel put in the vehicle and fought all the way to through the dealership to Ford who sent out a rep and who denied the warranty work. Fortunately my insurance company covered the ordeal and all repairs were completed. I got the truck back and 2 weeks later the truck died on me again. I called the dealership back who supposedly warranted the repairs but there first words were there is no way it is their problem, they would look at it but I have to consent that if they find it is contamination again I am responsible for the repairs which we all know just to diagnose they have to remove the cab etc.
I of course lost my mind and told them this is there issue and there is no way in hell I am that unlucky that I received 2 bad tanks of fuel from 2 different high volume highway side fuel stations in the same 2 months. it is obvious they missed something or there is another issue that was not addressed. They claim there is no way they missed something. I am at a standstill.
Passat (B5) :: 2004 - Fuel Nozzle No Longer Cuts Off Automatically After Changing Fuel Pump
I worked with my buddy troubleshoot and remove a faulty fuel pump. He received it a week or so later and did the install himself. After this, he states that while pumping gas at the gas station the nozzle no longer cuts off automatically when full causing overflow. He says this has happened at different stations and different pumps. I told him to go double check connections and that everything was sealed. I am wondering what could be causing it..
2004 Passat v6 wagon auto
Ford 7.3L Power Stroke (1999-2003) :: Cranks But Won't Start - Fuel Pump Not Pumping Fuel
01 7.3. Cranks, won't start. Tank was at 1/4 but is full now. The lift pump runs, I can feel and hear that the motor is spinning when I cycle the key. I removed the fuel filter and cycled the key and get no fuel into the bowl. It looks like the lines are stainless from the pump to the tank so I doubt it is sucking air. I pressurized the tank with a shop vac and I get fuel coming into the filter housing. Am I missing something obvious? I have never seen an electric pump that would run and not pump fuel. I removed the suction line at the pump and don't feel any suction there.
View 14 Replies