Question about 2004 Chevrolet Suburban
Ocasionally, the surburban will not start when cold. Once started it starts fine the rest of the day. Starter spins engine it seems faster than usual. Could this be a module in the electronic spark system? I had this happen once in another chevy vehicle. The starter would spin the engine faster than normally required to start it. Currently it will not fire at all.
I have a mechanic on stand-by to replace the fuel pump. He told me I might be able to get the suburban started by using a rubber hammer on the fuel tank while another person engages the starter. He said sometimes this might break loose the brushes and start the fuel pump going again. I thought this would be worth a try and wanted to let other folks know about this temporary method of getting the car going again. Might save a wrecker bill. Thanks.
Posted on Feb 16, 2009
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Posted on Jan 02, 2017
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Reason 1 - Gasoline, like any other liquid, evaporates less when it is cold.You have seen this -- if you pour water onto a hot sidewalk it will evaporate a lot faster than it will from a cooler place like a shady sidewalk. When it gets really cold, gasoline evaporates slowly so it is harder to burn it (the gasoline must be vaporized to burn). Sometimes you will see people spray ether into their engines in cold weather to help them start -- ether evaporates better than gasoline in cold weather.
Reason 2 - Oil gets a lot thicker in cold weather. You probably know that cold pancake syrup or honey from the refrigator is a lot thicker than hot syrup or honey. Oil does the same thing. So when you try to start a cold engine, the engine has to push around the cold, gooey oil and that makes it harder for the engine to spin. In really cold places people must use synthetic motor oils because these oils stay liquid in cold temperatures.
Re ason 3 - Batteries have problems in cold weather, too. A battery is a can full of chemicals that produce electrons The chemical reactions inside of batteries take place more slowly when the battery is cold, so the battery produces fewer electrons. The starter motor therefore has less energy to work with when it tries to start the engine, and this causes the engine to crank slowly.
All three of these problems can make it impossible to start an engine in really cold weather. People either keep their cars in heated garages or use "block heaters" to get around these problems. A block heater is a little electric heater that you plug into the wall to keep the engine warm.
i hope it was convince answers
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