Question about 1987 Ford Bronco II

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Only when its climbing a hill or if I floor it the engine cuts out like there is no fuel going to the engine, I've changed both fuel filters, the throttle positioning sensor, and the oxygen sensor

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  • yadayada
    yadayada May 11, 2010

    This is either a clogged fuel filter or defective engine wiring harness.



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It sounds like it is out of time. check the timing. I would also check the air filter.

Posted on Mar 06, 2009


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Mitsubishi carisma not working fine to the extent that it cannot climb a little hill until we push it...i changed the plugs,nozzles and fuel pump,yet still the same thing

Fuel filter or catalytic converters. If the engine cuts out or has no power. Could be the compression for the pistons. I would check compression first. You could have transmission problems also. 1 Compression good, 2 change the fuel filter, they never get changed. 3 Pull the pre O2 sensor/s. Still no change, Look at the transmission. Have the codes read first.

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When going up hills I lose momentum I changed the plugs,wires, and 02 sensor and it goes up to 3 rpms why isn't it fixed?

First check for any codes, then test vacuum with a good vac guage. When reving engine the vacuum should drop and then climb back up. Check for vacume leaks by spraying carb cleaner at any vacume hoses and intake areas but not at air filter.

then also check compression as well as look at spark plugs to see that they are all tan and no differences in any one. Go to YouTube and search for how to test engine with a vacuum gauge.

Most any problem with an engine can be diagnosed with a vacuums gauge but do use a second test method as you have learned replacing parts hoping to fix a problem is costly.

Mar 25, 2015 | 2001 Kia Sportage

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Signs of a clogged fuel filter

Usually a clogged fuel filter will prevent the engine from revving over a certain RPM, say 1500 or 2000. A weak fuel pump or pump relay could cause it to stop running and then restart.
But the fuel system would not affect engine compression.

Jul 28, 2014 | 2000 Honda Civic

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Why does my 98 dodge caravan have trouble climbing hills?

A transmission issue would give vibration tremendously during uphill. If you're not getting the vibration, or burning smell of transmission fluid, suspect clogged catalytic converters.

May 09, 2014 | 1998 Dodge Caravan

1 Answer

My mitsubishi challenger keeps dying when i go up the hill or downhill. i've changed the fuel pump but the problem is the same. sometimes its difficult to start the engine..

Check the condition and/or operation of the following:

1) Spark plugs, coils and leads.
2) Air filter
3) Fuel filter.

Please report back if no findings.

Nov 13, 2012 | Mitsubishi Cars & Trucks

1 Answer

I got one for you. I have a 2001 Mitsubishi mirage 1.5 l standard trans 230k miles has been a good car no problems except. Here recently it seems when I go to use any power like climbing a small hill on...

Hi, Check and/or replace fuel filter and air filter. If you starve the engine with air and fuel your car will behave like that too. Also fuel mileage will increase to your benefit. Check your tire pressure too. Good luck.

Jan 17, 2012 | 2001 Mitsubishi Mirage

1 Answer

On acceleration or hill climb car cuts up like it wants to die steady cruise runs fine code stated something about vapor

So long as you are keeping good fuel pressure vapor should not be an issue. I would try changing your fuel filter.

Dec 21, 2009 | 2003 Ford Mustang

1 Answer

1996 Mercury Villager cuts out while accelerating, especially up hills. Do you think it needs new wires and plugs? If so, how difficult is it to change the plugs and wires?

If it cuts out while climbing it's most likely a fuel filter or a fuel pump that is no longer able to supply enough fuel while you're climbing, which is when you use the most fuel.

Dec 04, 2009 | 1997 Mercury Villager

1 Answer

Engine light and cuts out at freeways speed when climbing up hil

Hi, williamtkr.

Have you changed your fuel filter lately? I had a vehicle once whose fuel tank that had a rusty seam. Every 10,000 miles or so, the rust flakes would clog the fuel filter, and the engine would sputter and stall when the vehicle was climbing uphill. If you idled for a bit, you could drive on for a ways, until the same thing happened.

A nearly dead fuel pump could cause the same problem, I suppose.

Good luck.

Dec 22, 2008 | 2001 Oldsmobile Alero

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