Question about 2003 Ford Explorer

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Clicking noise when i turn a/c on for back passengers using the dial above me in front. after awhile will stop, but once i turn off the a/c & turn it on it clicks again. also had trouble w/gas gauge needle going to full after a fill up. slowly reclined as i was driving but didn't get to full for like several hrs after. was curious if this could be a problem w/the speed of my car? I was think'g maybe nt enuff gas being pushed into engine? idk...please help.. Doesn't seem to go as fast as it use to. as a matter a fact seems like my car is eating more gas than usual. check'd my tires, was a little low, so I fill'd it w/air but didn't seem to make a difference. help!!

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The clicking sound when you turn on the A/C is typical of a system that is a little low on Freon(R134/R12). The compressor kicks in just for a moment to build up pressure then off quickly if it is low since there is a pressure sensor in the system, then builds up again & off. After several times it gets enough Freon working within the system to keep it running so it must be right at the bare minimum level to keep it running at all or it wouldn't even kick on. You'll need to inspect the lines & system for oily areas near the valves & such to identify a leak. Generally you can get some of the local shops to perform a basic system test for a reasonable price. There are aftermarket repair kits that will help identify the leak by using a dye & they generally provide basic instructions with the products.

Fuel ecoonomy: Tires aired properly will help, so will a new air filter, good Synthetic Oil in the engine, using a little fuel iinjector cleaner, and making sure any tune-up that is due, has been done. (a K&N air filter though a bit expensive initially, will save you fuel & give you better performance as well as saviing you $$$ in the long run. 2 types for most cars, OEM style fits without any other modificatioins & a complete replacement assembly that replaces hoses & mounts & such.

Fuel gauge: The gauge only reads based upon the sending unit in the tank, and the calibration of the gauge you see in your instrument panel. It is not unusual for it to take a fairly long time for the gauge to read 100% after a fill up. The system is designed to be slow so as not to cause needle movement when you go up a hill, or down a hill & such. If it actually does end up giving you a good reading as the end result & does indicate when the tank is low you may want to live with it. Or, you could have it tested or replaced but it will possibly require removing the fuel tank, fuel pump assembly & possbly part of your dash if the gauge must be tested also. good luck

Posted on Feb 02, 2010

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