I have a problem with my fuel guage when it gets to half a tank it goes between empty and a quarter of a tank. I stop a fill it up and it only takes 13 gallons. It started in the cold weather below 20 degrees. I have a 97 2500 with 50000 miles on it.

 

Hunt,<br><br>Yup. Sounds like your in-tank sender is shot. The fix is replacing the $40 sender AFTER dropping the tank. I did this by dropping the tank from the engine dirrection. I left the back up inside the housing and lowered the front of the tank. Just some large bolts and a floor jack. The pain was getting the platic ring screw (6-8&quot; dia) containing the sending unit off. When you pull out the sender you'll be thinking, &quot;Now I know what planned Obsolecense is.&quot; Poor design. Not a tough job. Quick suggestion....try to get your tank as empty as you can...35 gal's is heavy. <br><br>If the sender is intermittent, the complete failure is just around the corner. PAY attention to your trip odometer, or you may be left on empty somewhere!<br><br>Good luck.<br><br>TJ

 

TJ, thanks that will help alot I didnt know where to start at all.<br>I have been watching the trip odometer not trusting it niether and stoping to fill up.

 

definately the fuel sending unit in tank. I had same problem about 6 months ago and changed it out with a couple of floor jacks, be sure tank is near empty first lol. Mine would register full when filling and about 3/4 tank it would go to empty, so I used the odometer for months, knowing I could run 450miles w/o running out. I sweated several times though! good luck

 

Got the same problem with mine has been that way for 1 1/2 years just go by the trip meter. Got caught once. That is when I notice a major drop in fuel economy planning to get a day off &amp; a round tuit. to fix it. I was working on the 450 mile trip also.. the time I got caught was 415 miles.. just needed 10 more... I even figured taking 50 miles off the 500 I got on a few tanks would give me a buffer.... NOT<br>Good luck Now I have a way for the fix too! Darn list getting bigger. <br>

 

That part about getting the tank empty is REAL important. Not only is the fuel heavy, when you goe to raise a tank with a lot of fuel in it with your floor jack, the sides will pucker out and it is a real B*&amp;^% to get the straps back on.<br><br>Empty tank goes on REAL easy.