|03-06-2014 08:43 PM|
|east79th||I'm trying to figure out what size gas tank I have, Have it out of the jeep to replace skid plate if it ever warms up.Also having sending unit problems want to replace 1998 wrangler sport 4.0 engine. dont know what pump to buy 15 gal or 19 gal Thanks Tom|
|03-25-2013 09:20 PM|
|Nardoclark||I had the same problem with my 1997 Jeep Wrangler. I worked in the auto fuel system business and discovered the design is not linear. Just something we have to adjust to with Jeeps.|
|03-25-2013 07:38 PM|
Re: Gas Tank sending unit
My gauge only goes up to 3/4 full, even when it full. My light comes on after 125ish miles. I just watch my odor and fill around 185 miles driven. I'll eventually fix it, but for now I just watch it.
|03-25-2013 12:23 PM|
|11-09-2011 01:08 PM|
|tbduncan||I just installed a new airtex fuel pump/sending unit. When I fill up, my gauge reads half way between 3/4 and full. Do not assume it will read perfect out of the box. I can live with the way it is. My big proublem was bad pump and check valve.|
|11-08-2011 06:19 PM|
|05-04-2011 05:42 PM|
|05-04-2011 04:52 PM|
|05-04-2011 10:10 AM|
|05-04-2011 09:02 AM|
|05-04-2011 01:22 AM|
|Mijztif||I know I get close to two hundred miles per tank, I reset trip odo at fill up then drive till light comes on 170 or so, no need to replace , Quik ? Is the fuel filter built into sending unit an should I add a second one someplace for yearly p.m.|
|05-04-2011 12:07 AM|
From Full I will be at about 3/4 in about 35 miles, then it slows to somewhat normal mileage until just under a qtr. Then the way it hits empty you'd think it was pouring on the ground behind you. Have driven with the guage so far past E you'd think bone dry, then fill up and only take 11 gallons.
|05-03-2011 01:40 PM|
|Jerry Bransford||The TJ's gas gauge is notoriously inaccurate which is caused by the sender mounted onto the fuel pump. The sender is commonly inaccurate without it just indicating full or empty. I replaced my fuel pump/fuel pressure regulator earlier this year and it comes with the sender. You can't easily replace the sender separately since it is spot welded to the fuel pump's housing. My gauge is now pretty accurate.|
|05-03-2011 01:36 PM|
I believe the 2.5's came with a 15 gallon and the 4.0's came with the 19. Same tank just jeep stuck a piece in it so you can't fill it all the way on the 15.
When my gas gauge sits on the little pin at the bottom I have about 3-4 gallons of fuel left in my tank.
|05-03-2011 01:22 PM|
-At fill-up, the gauge goes all the way past F as expected.
-the needle then quickly plummets; by 80-90 miles it is at the half mark.
-at the half mark, there is a dead spot where the needle will drop below E and the light comes on. This typically lasts for ~10-15 miles.
-the needle then comes back up to half (and the light shuts off). Now it drops very slowly.
-after ~225 miles it will point to the 1/4 mark.
-now it begins dropping quickly; it points to E after only 250 miles. At this point, I typically still have another 4 gallons of fuel onboard. I have occasionally driven for a couple days with the needle below E and the light on; when I go to fill up, I still only can add about 17 gallons.
Since the fuel pump itself works fine, I've just been living with this erratic gauge behavior. I just keep an eye on the trip odometer to approximate how much fuel I really have.
|05-02-2011 08:55 PM|
|6InARowMakesItGo||i think its pretty common to be on e when you have 5 gallons left. i think most tjs have the 19 gallon tank and a few had 15 gallons. i think if your sending unit was bad it would either read full all the time or empty all the time.|
|05-02-2011 08:45 PM|
Gas Tank sending unit
I'm having issues with my guage it seems. Filled up today and within 40 miles I was in between 1/2 - 3/4. I am assuming that because when I am almost empty and I fill up, I maybe get 10 gallons, not sure if I have the 15 or 20 gallon tank but assuming the 15th gallon, on E with 1/3rd left isn't right.
Is this a recurring issue by any chance? Any one ever replaced one?