I just got a 1994 F150 with the 5.8L motor its a 4X4 with Auto trans. I have the dual tanks set up, midship and aft-axle and both tanks leak, more aft-axle then front. I was wondering how difficult is it to remove and install these tanks and what are some tricks to solve the problems I'll run into?
View 4 RepliesI have a 92 f150 w 302 . My front tank leaks out of the gas cap and builds up pressure. Even though I have never put fuel in it (owned it 7 mos). I siphon fuel out of it weekly. If I switch from rear to front. The truck stalls out.
View 1 RepliesMy vehicle:
1976 F150 2wd Extended cab
390 4bbl
c6 transmission
4BBL Edlebrock Carb
Dual fuel tanks, only rear main tank connected
My problem: For the first year I owned the truck, everything ran fine and it started up really quickly even after it sat for a few days or a few weeks. I have since, for about the last year or so, had to crank it for 30-45 seconds to get it to start. This all started around the time my fuel pump went out. I replaced it with an Airtex fuel pump from Autozone. I also installed a glass in line filter before the carb in front of the distributor.
I noticed that after about 4-6 hours, the fuel had drained out of the filter and that's when I would have to crank it forever to get it going. It also seems like there is no fuel in the carb as it doesn't even try to start when it first gets cranked. I thought this was a bad pump, so I bought a new one last week and tried it again. Sure enough after about 4-6 hours, everything is empty again and it takes forever to start it. So it's not a bad pump, or so I think.
The other day I backed it into my driveway and left it, something I never do. I checked about 4 days later and there was still fuel in the filter. This makes me think that gravity is making it drain back to the tank.
Is there something that would cause this? Also I have found a one way fuel check valve online that is supposed to remedy this type of problem. Do they work for this situation? Or is there something else I should be doing to fix this? It has taken a bit of a toll on my starting system having to crank so long all the time. I have so far had to replace my starter, starter solenoid, and all the battery cables, starter cable, terminals, etc. due to excessive wear.
The valve I found is here : [URL] .....
1994 150 300 6. parked truck after lunch finished work and it wont start no fuel comes out of the valve. Can't get the pump to work even when jumping the 6 pin. heard the relay click still nothing. Checked the inertia switch it wasn't popped. Took the pump out jumped it straight from the battery pump works . I know there has to be something i am missing...
View 7 RepliesI'm looking at replacing the fuel lines in my 94 F150 and the big question is what to do with hooking up to the fuel lines coming out of the fuel pump hat and the fuel rails? Ford uses a specialized pressure fitting on it's custom fuel lines. I think there may be some third party fittings that would replace these, but I'm not sure. I could use a standard hose and cable clamps, but I just don't trust that kind of connection for a fuel line.
View 5 RepliesI have a 1986 F150 6 cyl, dual tanks, no AC, manual fuel pump. Just recently, I have been having issues with the tanks. At first it seemed like the back tank was siphoning from the front tank. Now I have fuel coming out of my front tank filler neck. When I open the back tank gas cap, there is enough pressure to spray me with gasoline. I am not familiar with the fuel delivery system of my truck ...
View 2 RepliesI have a 1994 f 150 5.8l 4x4 with 215000. Cold starting is fine runs well. After running it will not start after shut down. Wait till motor cools back down will start up and run fine ....
View 2 Replies1987 f150 302 4spd 4x4. When I bought the truck 4 years and 12K miles ago the orig owner had just installed a new front pump (in tank) and new switch thing on the frame rail. He said shortly after that the rear pump stopped working so he just ran off of the front tank. That's what I've been doing also except as of the last few months it has started to leak from the rear tank (I don't ever put gas in it and was empty when I bought it) and dies periodically from time to time? Where the leak could be coming from. I do suspect the dying has to do with the leak though.
View 3 RepliesOk heres the story 1994 ford f250 7.5 4x4 dual tanks I used both front and rear tanks regualrly than one day front tank stoped working fuel pump doesnt turn on when key is in the on postion now you can hear the rear turn on when switched to rear tank took off pigtail connector to front tank no power at all to tank took off swith in dash no power there either good relay and fuse funny thing is with swith turned to front fuel guage reads correctly switch to rear reads correctly Im stumped because oveiously Im getting power to the switch but checked wires at switch and cant get any power or at front tank but power to rear.
View 6 RepliesI have a 1994 F150 XLT 5.0 . The problem i am having is when I turn the ignition on I hear the fuel pump come on [both front and rear tanks] and it should stop when the system is pressurized but it does not,and the truck then fails to start. Intermittantly the pump does stop and the truck starts up.
There is fuel at the rail and there is spark,i have changed the filter ,fuel pressure regulater and the pump relay to no avail.
My parents have dumped a Ford F150 Explorer van on me to fix for them. Whenever they put gas in it too fast or fill it up more than about 2/3rds of the way full, it leaks near the back of the tank. I believed that it may have been the Charcoal Cylinder, but that theory was not correct. I really don't want to drop the tank, but that is my next step. I don't think that it is a hole, because it only leaks under certain conditions.
View 3 RepliesMy XLT did not come with tweeters in the upper location near the door handle. Adding factory tweeters there..... I know how to wire them up but would like to know part numbers, pictures or any tips about install........
View 1 RepliesI've got a 01 f150 yesterday stopped running (like it ran out of gas). Has half a tank. Fuel pressure at rails good but truck will not turn over. Fuel pump and filter less than year old.
View 1 RepliesI've had a fuel leak near the pump of my 79 F150 with a 400 for some time. I didn't know exactly where it was coiming from, but fuel was being sprayed on to the oil filter from something near the pump. I assumed it was the steel line, and that it had rusted through or cracked, and was going to replace it when I had a chance. I was poking around today though, and realized that the fuel was not leaking from the line, but from a hole in the side of the mechanical pump.
For someone who knows what these pumps look like, there is a horizontal cylindrical bump out near the top of the pump, on the side of the pump that is away from the engine. The fuel is spraying in a mist out of one side of that. To me, it always seemed to be a screw channel, but I didn't think the pump was 2 halves put together? Need to know more about my pump, what that bumped out section is, or why/how fuel could be spraying out of it.
1993 F150 302. What does the fuel canister purge solenoid/vac play in the furl/emissions arena?
View 5 Repliescant figur this out have no signal to injectors and no power at fuel pump 88 f150 5-0
View 2 RepliesWhy 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 Repliesfor the past week we have been trying to figure out what is wrong with our truck. We recently bought it and it ran fine. Then got in a minor accident just a fender bender and it started acting up so I got towed to garage. First it would run when cold, but when hot fuel pressure would drop to 28 psi.
So I put new fuel pump, it started but still did the same thing hot 28 psi fuel pressure shuts off. So I put regulator on it, then had 0 fuel pressure won't even start. So got a another regulator thinking I got a bad one, still 0. Checked relay, there fine. I'm gonna check lines and see where fuel stops at but everything is new on it.
I 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 RepliesI filled up with gas this week on my 92 Ranger extended cab and when it got to full I noticed it was leaking down the side of the tank in-line with the filler neck. I couldn't make out exactly where it was coming from. It wasn't coming out of the filler neck I know. I noticed I had been smelling a strong gas smell but I thought it was a bad gas cap. I've never dropped a tank on any of my Rangers. I've also got a 93 and 98 regular cab but always had someone do it. I know that on my 98 the big plastic lock ring deteriorated over time and I had to have it replaced because it was leaking when I filled it up. I'm suspecting the same on this 92. I got a print out of the fuel tank and components from Ford trying to prepare myself to have everything I need if I try and drop the tank myself to check. It looks like it has one of those plastic lock rings, a filler neck grommet, and some kind of vapor grommet. It shows some kind of shield over the fuel pump assembly. Will I need anything special to remove that big plastic lock ring, the hoses, or to drop the tank? I know it's got that heat shield around it. It looks intimidating. I don't want to break anything but can't afford to keep paying all the labor to get the small problems fixed on this Ranger. The only fuel tanks I've dropped and changed were on my 65 Valiant and 73 Charger but they required no special fuel line removal tools. Is anything going to be hard removing this fuel tank? I probably will put in a new fuel pump just to, since it's running the original 22-year-old fuel pump.
View 4 RepliesThis van has had a couple of fuel pumps, no surprise there, and i need to look through my paperwork and find out how many miles the current one has on it, but it has the STRANGEST habit I've ever had on any vehicle. Starts fine, runs fine, no fuel pump noise when van is running, and when you turn it off, the fuel pump creeks on and off for several minutes.
I mean a strange creaking noise almost like a shorted electrical device or a vehicle's brakes when you park it on a hill and the breaks creak as it settles into place. I'm probably doing a lousy job of describing this but i don't know how else to describe it!
ALSO, if you lay under the van and wait til it stops creaking, you can tap the bottom of the tank and it will creak for a few more seconds. You can tap repeatedly and make it creak more. Is it about to explode? Can i trust it on a road trip?