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Search Auto Parts Search 95 Ford F150 gets balky at 1/4 tank Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> Tricks of the Trade AEC605 New User Sep 16, 2010, 3:01 PM Post #1 of 3 (2592 views) 95 Ford F150 gets balky at 1/4 tank Sign In I was driving my truck up in the hills of Colorado when suddenly it started sputtering and shaking, like the engine was missing or perhaps starved for gas or air. I was getting down to a quarter tank and stopped for gas. The problem stopped and the truck ran fine, as usual. I checked the spark wires, everything is fine there. I drove the truck w/o any problems until once again, when the gas level reached 1/4, the truck started losing power and getting balky. More gas solved the problem. This has gone on for a month now; I know the tank is clean so nothing is being picked up from the bottom. This is a compounded problem for me since there is a pinhole leak at the top of the tank so I can't fill it above the 3/4 point---giving me now about 12 gallons useable between the leak and when the engine starts acting up. Any thoughts?? Thanks. Tom Greenleaf Ultimate Carjunky / Moderator Sep 16, 2010, 3:34 PM Post #2 of 3 (2589 views) Re: 95 Ford F150 gets balky at 1/4 tank Sign In Guesses: Lived in Denver for a year so dang long ago now there weren't many fuel injected vehicles. Yes - high altitude does has less air expressed as smooth loss of power vs sea level. What's with the leak in the tank? Is it rusted? If so it's got to go. Take fuel pressure - a maybe is that it can maintain adequate pressures when more fuel is in it as the fuel keeps it cool and it might be losing it when lower and it might be getting hot/warm and not be up to par............ T Sidom Veteran / Moderator Sep 16, 2010, 6:45 PM Post #3 of 3 (2582 views) Re: 95 Ford F150 gets balky at 1/4 tank Sign In Have to go with Tom on this one. Since you already have a known problem with the tank. Replacing the tank might just cure both problems. With in tank pumps, there is a "well" area. What this is, is like a tank in the tank. It's a small area the pump sits in and fuel is concentrated there. This way you can get down to a gallon in huge tank and the pump can still pick up fuel to run the engine. With out a well you would need at least 3 or 4 gallons in a big tank for the pump to pick up fuel, so basically you would have all this "unusable" fuel. Just from what you've posted I would be looking at the well for problems.... There were some Mustangs with a problem with a weak wall in the well. If the car was in an accident the wall would fall down and there would be no well....... The common complain on that was " My car was in a wreck and ever since then, when it gets to a 1/4 tank or less & I go around a corner it dies"   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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