Question about 1992 Buick LeSabre

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When fuel is below 1/4 tank going down hill car acts like its not getting fuel it sputters until elevation levels or begins up hill incline

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1/4 tank on the flat. You fuel system is sucking air on a grade bcause it is all going t the front of the tank. !/2 tank is about as low as you should go.

Posted on Nov 12, 2009


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I have a ford v-10 I can only go up hill 30 mph is this normal.

Oh heavens no... NOT normal.

If it was sputtering or anything like that you wouldn't even begin to think it normal... so I'm writing off the water in the tank... (show itself on inclines & declines... but only on a hill?? Blocked exhaust... all of that would sputter & fumble.


I'm going with a fuel pressure problem... marginal or an ECU... or timing is way off.

In the old days... when you hit a hill.. the vacuum drop was quite significant... the distributor advance would drop back to RETARDED... give you more TORQUE and bring you efficiently up that hill... So if your fuel pressure is good... timing tests good... you need to be looking at your ECU...

I'm thinking that is where all the vacuum, rpm... advancing is properly monitored.

Happy hunting...

Nov 15, 2015 | Ford Cars & Trucks

1 Answer

When tank is below 1/2 full the car is hard to start and when driving it seems to lose power. My check engine light does not come on.

the problem maybe a problem with fuel pickup at 1/2 tank, if the line has blockage, the filter is clocked up, the leveling or device that keeps track of fuel level is defective, there issue with the floater, the part that suppose to float has or full of fuel and when it gets to 1/2 tank, the floater full of fuel and sinks like your out of gas.
i think most likely clogged fuel filter in the fuel tank if your car has this type of system.
if not the fuel filter most of the time its near intake of the injectors, underneath the drivers seat under the car.
or by the inlet and outlet of the fuel tank.

Sep 08, 2015 | 1999 Hyundai Sonata

1 Answer

Engine coughs, backfires, & sputters when pulling up a hill

if the fuel level sensor is not showing correct level when the level shifts from and level surface to an angled surface the fuel will flow away from pump intake and can cause this. what is like with a 1/2 tank of gas, does the problem go away. if so then this is the problem.

Aug 17, 2015 | 2002 Ford Windstar

1 Answer

What would cause the van to start spitting sputtering misfire when going up hill or encline

Could be clogged fuel injectors. I had a problem similar to this. Car ran okay on flat areas but would spit and sputter going up inclines. I took mine to an oil change place and they ran a cleaner through the system. This fixed the problem and I put an injector cleaner in with every 3rd tank of gas to keep this from happening again.

May 24, 2015 | Cars & Trucks

1 Answer

Car lunges and stalls especially on hills but restarts

change your fuel pump filter and put some injector cleaner through a half tank of gas and drive

Feb 20, 2014 | 2000 Ford Contour

1 Answer

Car wont start when parked on hill

I HAVE THIS EXACT PROBLEM. If you got this repaired, what was the fix??

Nov 26, 2012 | 2003 GMC Yukon XL

1 Answer

Runs for a while but then acts like fuel pump is not working we have replaced fuel pump and fuel filter it is getting gas from pump to motor but now it has quit agin

if it only happens below 1/4 tank this sounds like a fuel pickup problem in the tank or the fuel sending unit is off.the cheapest way to fix it is to keep the fuel level above 1/4 tank of fuel.

Apr 17, 2012 | 1994 Volvo 850

1 Answer

2000 Ford Contour hesitates or stalls when turning left or on inclines at or below 1/2 tank of gas

Your best bet , take an have a fuel pressue an flow test done . If you think it's fuel related . I'm sure you probably don't have the tool's to do these tests. We test , not guess as to what could be the problem . If clogged fuel filter it wouldn't get any fuel an it wouldn't start an run at all .

Mar 01, 2017 | 2000 Ford Contour

1 Answer

I put a new fuel pump in now when it gets on a quarter tank it acts like running out of gas when i go up hills around turns

You probably put the sending unit in pointing the wrong way. Easy to do. When this happens the float level sits on a raised part of the tank. Only going down to around a 1/4 tank level on the gauge. It will have to be moved to work right. The gauge that is. The pump will still work weather you fix it or not.

Jan 23, 2011 | 2003 Pontiac Grand Am

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