Question about 1985 GMC Jimmy

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1985jimmy/excessive fuel use troubleshoot - 1985 GMC Jimmy

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When was last healthy tune up? Plugs, wires, cap, rotor, all fluids & filters??? I would start there and run a good fuel system cleaner through it.

Posted on Mar 22, 2011

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Jun 30, 2016 | Cars & Trucks

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Causes of excessive fuel consumption


Hello, There are several causes for excessive fuel consumption . Dirty or clogged air filter, leaking gas hose or fuel lines, under inflated tires, wrong sized tires, excessive weight in the trunk, a heavy foot on the gas pedal are only a few.

Mar 17, 2015 | Cars & Trucks

1 Answer

Fuel in oil pan


you need to check the fuel pressure and the pressure regulator. if these are allowing excess fuel pressure then this will happen. also if the fuel injectors are dirty it can cause excess fuel into the cylinders. this excess fuel will not be burnt and cause what is known as cylinder wash allowing the un-burnt fuel to leak into the oil pan. when you find the cause of the excess fuel repair. you need to change the oil and filter maybe more than once close together to rid the excess fuel in the oil.

Aug 11, 2014 | Cars & Trucks

1 Answer

Black smoke and bad fuel consumption what is the problem? Oh it an 07is volvo s40 20d


Hi there:Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a fuel odor.
How did the fuel get into the cylinder in the first place? Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer sensor. If black smoke is present, check the engine oil as in the white smoke example to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil. Call your mechanic and advise him of what you have found.
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.
Thank you for using FixYa.

Mar 04, 2012 | 2007 Volvo S40 2.4i Sedan

1 Answer

I have a 92 blazer 4.3 vortec


Hi there:
Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a fuel odor.

How did the fuel get into the cylinder in the first place? Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer sensor. If black smoke is present, check the engine oil as in the white smoke example to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil. Call your mechanic and advise him of what you have found.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Mar 04, 2012 | Cars & Trucks

1 Answer

I have a 92 blazer 4.3 vortec


Hi there:
Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a fuel odor.

How did the fuel get into the cylinder in the first place? Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer sensor. If black smoke is present, check the engine oil as in the white smoke example to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil. Call your mechanic and advise him of what you have found.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

Mar 04, 2012 | Cars & Trucks

1 Answer

I have a 92 blazer 4.3 vortec


Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a fuel odor.

How did the fuel get into the cylinder in the first place? Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer sensor. If black smoke is present, check the engine oil as in the white smoke example to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil. Call your mechanic and advise him of what you have found.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Mar 04, 2012 | Cars & Trucks

1 Answer

Excessive fuel consumption volkswagen golf 1.8


Hi, Lee,
you have lose earth connection somewhere.It is difficult to find.Can be anywhere.

Jun 21, 2010 | 1991 Volkswagen Golf

1 Answer

GM Daewoo Kalos - Excessive fuel consumption 15L/100km


o2 sensor bad or ,dirty or clogged injectors hope this helps

May 09, 2010 | 2002 Daewoo Lanos

1 Answer

Why do i get black smoke when i boot it hard out of the exhaust


Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a fuel odor. Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer sensor. If black smoke is present, check the engine oil to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil.

Aug 17, 2009 | 2005 Jaguar X-Type

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