I am getting no pressure at the fuel rail. Relay seems to be ok, so I am assuming the pump just failed (in the driveway luckily). Before I drop the fuel tank, I would like to confirm I am getting voltage back to the pump. I cannot fine any wiring in or under the car going to that area! How to find that circuit as close to the pump as possible and still accessible without dropping the tank?
View 1 RepliesI have a 1987 jeep cherokee with inline 6 and multi port injection.
Sometimes this vehicle only starts when hot
Some times only when it cold
I have recently fixed the fuel leak.
When its hot or cold and not starting if i relieve the fuel pressure at the fuel rail, in most cases it will start immediately. However if fuel pressure relief does not work. I disconnect the vacuum line at the what looks to be the EGR valve or the pressure regulator at the front end of the rail, then usually starts right away.
I have not tested at this time to see if the fuel pump is failing nor have i tested fuel pressure. I am trying to narrow down the problem to one specific part. There is no problems with cranking. There is spark - coil, plug, dist cap have been replaced.
It seems the problem is with fuel delivery of sorts. It was mentioned that sometimes the heat from the engine could be heating the fuel rail to a point which turns the fuel into a gas not allowing it to atomize.
I cant find the port on fuel rail to get a fuel pressure reading.it is nothing like my tarus.saw astem sticking up on front right of rail but it has some kind of covering over it. It is a 2005 freestar with the 3.9 motor.
View 5 RepliesI picked up a Haynes manual for the engine/head removal. It has the procedure for 2003 pressure release by unplugging the fuel pump and running until it dies. Unfortunately the car does not run. I do not know what to do now.
View 8 RepliesA friend has a 1999 Caravan with the 3.0L engine. He couldn't get it to start and to make a long story short, I checked the fuel pump relay and fuse and they were good but there was no pressure on the fuel rail. Turning the key I couldn't here the fuel pump come on and determined the fuel pump was bad.
I changed the fuel pump and fuel filter put in 1/4 tank of gas and turned the key, and it turned over but wouldn't start. I can audibly hear the fuel pump come on for a second or so, and feel the vibration when I put my hand on it, but there is still no pressure at the fuel rail.
I stopped and when I started the SF the engine light stayed on. I shut it off and checked oil. Oil good. When I started it again it didn't start as swiftly as it normally would. Since I still had 150km to go in the dark I decided to give it a whirl as the alternative, like waiting for a tow truck, would be many hours.
Max rpm, about 2000. Give more gas and it sputters. Eventually nursed it to maintain 80-100 kmh at the 2k rpm. Since it was mostly downhill I continued to at least get closer to civilization. Found sort of a sweet spot and was able to maintain 100kmh on level ground and lost some on grades. Engine was running smooth.
As it turned out I made it home. Total milage on SF: 58,250 km. Guess I'll see what the dealer says on Monday.
So I've gotten this error code a few times now but never a CEL nor does the car drive any diff.
1 Fault Found:
000136 - Fuel Rail/System Pressure: Too High
P0088 - 000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 1
[Code] ....
Next mods are for the fuel rail cross over and the high pressure oil cross over. I see the unused ports will come in handy.
Fuel delivery? any specialty mods to run the fuel lines? I see it's a #4 ORB fitting. Anyone ever use a "T" or a splitter off the fuel bowl to have a quad line set up?
Saw the FRx from RiffRaff .... not sure how it eliminates air from the system 7.3L Diesel Fuel Rail Crossover? (FRx) 99-03 Powerstroke
I have a 1994 volvo 850 turbo wagon. While replacing the pcv breather system, I dropped a little metal clip that attaches the fuel line to the fuel rail with a t25 torx screw. I can't find the clip. What the part is called or where it can be found?
View 1 RepliesI have a 1987 LeSabre that will not start sometimes and if I disconnect the battery and let it sit about five minutes and reconnect, it starts right back up. Then it seems to be fine for a few days, then won't start again. When it is trying not to start, it cranks, but when you let go of the key it dies again Unless the gas is continuously pushed down.
If you keep trying to start it without adding any gas, it seems like it cranks less and less each attempt? There don't seem to be any other problems with this car at all and no real warning that this is going to happen. I can't even think of things that have been the same each time it happened. It has happened when car was warm, happened when cold. I guess it has happened after letting the car get below 1/4 tank and then refilling (sometime within a day of a fresh tank it does this, maybe?)
My 87 lesabre has run great for many years, but lately, it has been quitting on me. It happens randomly, usually while driving slower or idling. It just suddenly quits almost as if it's out of gas. It usually starts right back up, sometimes have to wait 20-30 seconds. It runs fine, not sluggish or anything, up until it quits. Had a couple mechanics look at it, when I told one about it he thought for sure it was going to be the fuel injectors but they all checked out fine.
View 4 RepliesI was watching a tv show a while back, I cant find the episode but I think it was performance tv, and they had a 6.0 L expert on there and he was saying they see a lot of high pressure oil rail end caps come loose and or pop out. He was saying that they tap/thread the end of the oil rail and put a threaded in cap? Does it make any sense, can it be done, is it worth doing?
View 14 RepliesI've found everything there is to know about disconnecting the high pressure oil STC line from the oil rail on the early 6.0's, but I can't find anything about reconnecting them. Do you simply press it back on? Should there be an audible "click"?
View 14 RepliesSeveral weeks ago I was smelling gasoline odor in the cabin, mainly when I came to a stop. Took the car to the dealership,and they found a leaking connector going to the fuel rail. They tightened it up, but this morning the odor is back.
View 5 RepliesWhat is the part number for the high pressure oil rail check valves for a 2003 6.0L? I'm referring to the ones that screw into the oil rail. I would like to avoid the local dealer if possible.
View 6 RepliesWife's 2002 elantra is leaking at the fuel rail pretty badly. Looks like maybe there should have been a hose clamp on it, i can see the indentations on at the rail on the rubber fitting. So i put a hose clamp on it. stopped leaking....just went out a few hours later to check it again, started it up....started leaking same spot.
We are getting a new car in 3-4 months. All i want to do is replace the line from the rail to...the next closest fitting.
Are there any videos? PIctures? Documents how to do this? I've never replaced a fuel line, doesn't seem like it could be hard. Just don't know how those fittings work. I've been known to turn a few wretches here and there.
I need to check the fuel pressure to verify if my fuel pump is functioning. What is the procedure and PSI?
Assume that I open the valve on fuel rail with engine off, then connect pressure tester kit, put key in ignition to "on" position, then pump up to specified PSI???
Why the frame mounted fuel pump might run after the key is turned off? Then when you turn the key on it may or not run. If it does run it keeps running. shouldn't this shut off after pressurizing the line? is their a pressure switch in the pump that's failing? This has the 3 pump system...
View 4 RepliesI have an 87 F150 4x4 4.9L EFI with a single tank. Fuel pumps keep running even when the key is off. I tried swapping relays but the problem still exists. The engine will start and run OK for about 15 secs. then die. I installed a new low pressure pump, high pressure pump seems to be OK. I also installed new fuel filters. I dont want to just throw parts at this truck, where do I go from here?
View 4 RepliesYesterday , my feed fuel line was dry rotting and leaking gas so I bought 516 fuel injection hose and replaced them. Pulled fuse 28 , started the car and let it die to release pressure , fixed the hoses and put the fuse back in and now it just cranks forever. I have spark , and I'm getting fuel just not sure if it's adequate pressure. When I open the door the pump did sound a little funny when it primed. I'm gonna pull it out and check it later but right now I'm completely stumped. I did this last night around 8pm and it's 4:30 am the next morning and still not start.
View 6 RepliesI bought the truck now it won't start has to fuel at the fuel rail cranks but won't start when I spray starting fluid it starts but won't stay running....
View 1 Replies