Question about 1995 Buick LeSabre

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It seems to miss fire when i step on the throttle to accerate

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Give it a majore tune up, and be sure to clean plenium with spray cleaner add lucas fuel treatment to clean fuel injectord and fuel system and remove all water

Posted on Jun 28, 2009


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My 2005 x5 diesel BMW miss fires when I accerate and looses power at 100kph I have replaced fuel and air filters and run 3tanks of injector cleaner what could be the problem ?

I am leaning toward a fuel problem. Loss of mid-range power, misses or pops, and backfires are indicators of not having enough fuel. I am guessing some of your injectors are still not fully functioning.

Jan 28, 2018 | BMW Cars & Trucks

1 Answer

When accerating and let off throtle it does not back off then very slowly, but is fine at slow accerating

it could be a dirty throttle plate/shaft or a bad/sticking throttle cable. also if the return spring is weak can cause this as well.

Aug 27, 2015 | Cars & Trucks

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Nissan pathfinder 91 slow engine acceration

seems like it could be in the throttle sensor is the check engine light on?

Oct 07, 2013 | Cars & Trucks

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Miss fire on cylinder six on a gm sierra 1500 5.7 1996

Check compression on that cylinder. All the items you replaced could have been tested to see if they where working correctly. If they where than there was no need replace them and the next logical step would be to check for a mechanical failure rather than an electrical or engine management failure. In other words if the engine is not solid mechanically than there is no reason to replace electrical parts to try and solve the issue.

I’m happy to assist further over the phone at

Aug 23, 2012 | 1996 Chevrolet K1500

1 Answer


Have you tried cleaning the throttle body. Use throttle body friendly cleaner as it has a special coating that you do not want to damage it. Clean the sutt out real good where the butterfly valve is, inside and outside.

Aug 10, 2009 | 2000 Chevrolet Silverado

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I have a 1998 Mercury Topaz that starts to miss under acceleration and can hardly make 100k per hour. Ignition system is ok. The problem seems to be in the fuel system. New fuel filter installed and...

Even tho the ignition seems ok, I'd check the ignition cables to the plugs. Sometimes these break down over time... it will idle and drive ok, but when you need power for a hill, or acceration, that's when the wires faults start to show up.
A quick test is to put the car in drive with your left foot on the brake FIRMLY while you press the accerator... if the miss and lack of power shows up, it's usually the ignition cables to the plugs.

Jun 30, 2009 | Mercury Topaz Cars & Trucks

1 Answer

Idle ok,slow acceleration fine,accelerating quickly miss-fires

Sounds like you have a leaking cylinder head gasket

Jul 18, 2017 | 1992 Ford Escort 4 Door

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