I have a 1999 f350 with the 5.4l engine. I have no power to the fuel pump or fuel pump relay. I have battery voltage to the pcm relay. I don't know what else to test because I don't have a proper wiring diagram.
View 2 RepliesI have a 2007 f-350 with the 5.4. The fuel pump is not running, have voltage at the inertia switch but none at the pump. Where the pump driver module is located at?
View 2 Replies2003 f350 5.4... Is the fuel pump relay behind the radio? Under hood? Or built in the fuse panel and unserviceable?
View 14 RepliesBottom-line question: is there a way to tell if a GEM is fried?
'99 F350 with a known water leak (not where it leaks, but for sure that it does--glove box, floor mats, etc.).
Recently started running the battery down, and then noticed that under low-voltage conditions it would click the door-lock relay back and forth, etc.
Now, after several inches more rain, it's making clicking and other electrical havoc noises any time it's not running, key in or out, even when the battery is up enough to start the truck (V10). I charged the truck and started it, drove it around to let it charge some more, and when I got home and shut it off, it was clicking as bad as ever.
After reading on the forums a while, I went ahead and pulled the fuse panel and GEM. The two big fuse panel connectors were definitely wet inside, and there's a little corrosion on one or two of the bayonet connectors. The GEM itself doesn't seem wet, and it doesn't look/smell like I've let the smoke out of it.
What do I do at this point? Last time, after I charged it up, it seemed to hold a charge and didn't do any clicking. I thought at the time it was related to the door switches that had been on the fritz (and which I lubricated after reading about where they are). Now, I suspect it was just because it had been long enough since it was rained on that things had dried out.
I have a 2001 f350 v10 that has been giving me fits. has 88000 miles. cranks and starts when cold or fuel pressure is below 40 psi. SES light will flash when it stalls and fuel pressure goes from 30 while running to 40 and the fuel pump runs continuously when this happens and truck will not start. replaced crank sensor and fuel pump was changed about two months ago. if I relieve fuel pressure it will start and run for short time then stall and fuel pump stays on. all fuses are good. I am at a loss.
View 1 RepliesI have read everything there is on this stupid esof 4x4. But I'm not getting power to the relays. I have checked every fuse listed and have no corrosion or anything. Is it possible that having a ,door ajar light on, constantly cause this I'm stumped.
View 3 Replies1999 f-250 super duty... okay, here is what i have going on. basically no power to the fuel pump. For the last 2 weeks the fuel pump relay and 1 of the relays behind the radio (next to the blue relay) would chatter and the truck would die. Wait about 5 minutes and turn the key on and if the chatter was gone then it would fire up and run... So NOW no chatter on either relay and not cranking up. - motor turns over just fine- just no power to fuel pump. So I changed out the relay- both behind the radio and the one under the hood. still chatters and no start. i have checked the Inertia switch and 12 volts there... Here is my question, when i turn the ignition on, i have no power to the base of the Fuel Pump Relay.... Where does the power come from to power the relay???
View 13 Replies2001 F250, 7.3L ... After much diagnosis, I've found that the 4 positive feeds to the transfer case relay base have no power to them. The fuse that feeds them (#17 CJB) is fine and when I jump from the fuse hot side directly to the transfer case motor contacts on the relay base, it shifts fine. As far as I can tell, there is only one wire leading from that fuse so there must be a junction block somewhere that splits it into the 4 wires that feed the relay block. I've looked underneath and found nothing. How the 1 wire gets split into 4? On diagrams this junction point is labeled, but I don't know where to find that.
View 2 Replies2003 f550 with 7.3, suddenly loses power and struggles while driving. White/blue smoke comes from tailpipe, can smell the diesel exhaust bad when happens, comes and goes intermittently but has been happening more and more often. I uploaded a video onto YouTube to show sound, rough running motor and smoke from exhaust although smoke not that bad in video. Search "shadetreelandscaping" on YouTube in case link below doesn't work.
ShadeTreeLandscaping - YouTube
Took to ford dealer a few diff times for problem and they can't get any codes, can't duplicate problem. After it being in for third time they say had to call ford tech hotline and they suggest replacing injector however can not and will not gaurntee that will solve problem, and obviously dealer isn't cheap for repair. I find it hard to believe that a bad injector(s) would be an intermittent problem as it is or that it would cause fuel pump to make gurgling sound.
20 06 F350 6.0l ... Recently noticed when my climate control selector switch is on the off position, the a/c vacuum pump cycles for a few seconds then stops, then cycles, then stops.. Does this until it's changed to a different setting. Pulled the connector behind the selector and plugged the black hose and it stopped. Re-connected it and could hear site leaking so I kinked the white hose and it stopped. I have also lost my MAX a/c that is now defaulting to defrost. Is there a part number just got the hose selector, or a way to fix the existing one?
View 4 RepliesI have a 2004 F-350 diesel. My vent selector is always on defrost so I suspected a broken hose but traced all out and all seem to be fine. I disconnected the line coming from the pump to the tank and no vacuum. The pump doesn't seem to be running but it's hard to tell with the engine noise and vibration. What tells the pump to run and how can I bench check it?
View 8 RepliesSuspect I have a bad fuel pump. I checked for power thru the Inertia Switch. When I first energize the ignition I receive 12v after a couple seconds it drops to 7v. Is this normal? I checked at the connector to pump module and see the same reading. I swapped fuel pump relay and same readings. Just want to makew sure I dont have some other issue before doing pump.
View 2 RepliesI have a 2008 F350 FX4 with the 6.4l diesel, a couple weeks ago I was reprogramming the ecm and noticed the vacuum pump was running and wouldn't stop, so after a bunch of reading and testing i changed the solenoid vacuum valve. I tested all the vacuum lines and found no leaks.
View 3 RepliesThe water pump on my 2015 350 (6.2L) failed this morning and the dealer says it needs to be replaced. What might have caused it?
View 6 Replies2004 super duty crew long bed 2wd, v10 auto SLT.
Manual says not in fuse block.
Looked behind radio, nothing, not even a space or the blue one there.
There are some on the firewall, driver side not marked. No pink wire.
Where else??
Will it be easier for me to drop the tank or to take off the bed of the truck does a 1990 F350 7.5 liter dual tank gas
View 1 RepliesI have searched through the site but have not found anything like the problem I'm having. I have a 2003 F250 5.4. Three weeks ago I attempted to start my truck and it just cranks. The fuel pump was not coming on. I left the truck over night and the next morning the truck starts with no issues. It ran normally for the next three weeks then the same thing happened again. Towed to the mechanic but the truck started up and ran. It shows no codes after both no starts and both times ran fine the next day. When running fuel pressure is where it should be.
View 3 RepliesI have a 1999 f350 7.3. Turn the key lights and fuel pump come on but the starter wont crank. I replaced the starter and checked all the fuses i could find. The only way I can get the truck to crank is by jumping the relay under the hood.
View 9 Repliesi have a 04 f250 with the 5.4 gas motor, yesterday i changed the fuel pump in it, after we were done we started it up ran fine turned it off went to go start it again nothing, and yes i already checked the inertia switch under the passenger kick panel.
View 8 RepliesI am looking for the location of the fuel pump relay for my 1999 Ford F550 V10 4WD Gas truck.
I have replaced the fuel filter and fuel pump. When the key is turned the pump gets juice and 2 seconds later is not getting juice. No lines are coming into it, so it's not getting up to pressure and shutting off.
I just replaced my fuel pump to avoid another tow truck ride and now my fuel gauge is off. I filled up the truck today and the fuel gauge is only showing half a tank. I turned the truck on and off several times to try to reset it, but that didn't work.
Truck is a 2003 with the 5.4.