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View Full Version : Problem with Gas Gauge...Need Advice...


knicks125
04-08-2005, 06:44 AM
Anyone with experience of gas gauge malfunction?<p>Here is the problem my friend has been having...every time he fills up the gas, the gauge runs fine until after he drives about 25 or 30 miles, then the display goes crazy, sometimes it would go down all the way to E (empty), and he knows there are a lot of gas left in the tank. The only time it works normally is when there is about 1/4 of tank of gas left, only until then.<p>So far he has been using his trip odometer to see when he needs to get gas again...he tells me there is nothing wrong, since he's still getting the normal mileage to the gallon (20/27) and somewhere between 330-350 on a whole tank of gas (he does a lot of highway driving) -&gt; So every time his trip odometer says somewhere between 330 to 350, he would go to the gas station to fill up.<p>He also told me he had already checked on a few websites and did not see any relevant recalls with his car. He was wondering whether it would be worth to pay a visit to his dealer and get it fixed (hopefully), how much $$ do you guys think he's looking (he has to pay, since his warranty is out)?<p>It told him it's probably the signal from the gas tank that is not working properly. Any ideas guys?<p>Thanks in advance for all the help!

Santeno
04-08-2005, 11:45 AM
I think this should help answer your question:<p><A HREF="http://auto.howstuffworks.com/fuel-gauge.htm" TARGET="_blank">http://auto.howstuffworks.com/fuel-gauge.htm</A><p>In all likely hood, there is a problem with the resistor/float assembly inside the gas tank, which would explain the erratic readings when the car is moving. Don't quote me on this (Cozz please verify), but you will most likely have to drain the tank in order to inspect it, and probably remove it in order to make any internal repairs.

rman5001
04-09-2005, 01:10 PM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>knicks125</b> &raquo;</i></TD></TR><TR><TD CLASS="quote">Anyone with experience of gas gauge malfunction?<p>Here is the problem my friend has been having...every time he fills up the gas, the gauge runs fine until after he drives about 25 or 30 miles, then the display goes crazy, sometimes it would go down all the way to E (empty), and he knows there are a lot of gas left in the tank. The only time it works normally is when there is about 1/4 of tank of gas left, only until then.<p>So far he has been using his trip odometer to see when he needs to get gas again...he tells me there is nothing wrong, since he's still getting the normal mileage to the gallon (20/27) and somewhere between 330-350 on a whole tank of gas (he does a lot of highway driving) -&gt; So every time his trip odometer says somewhere between 330 to 350, he would go to the gas station to fill up.<p>He also told me he had already checked on a few websites and did not see any relevant recalls with his car. He was wondering whether it would be worth to pay a visit to his dealer and get it fixed (hopefully), how much $$ do you guys think he's looking (he has to pay, since his warranty is out)?<p>It told him it's probably the signal from the gas tank that is not working properly. Any ideas guys?<p>Thanks in advance for all the help!</TD></TR></TABLE><p>Had the same problem with my car 6 years ago. In my case it happened itermittantly. The ended up replacing the entire pump assembly in the gas tank (and fixed the problem). It was under warranty but would have cost about $1000 CDN ($800 US) if I recall correctly. <p>I don't know enough about the assembly to say whether the dealership/mechanic could have refurbished or replaced an individual part at a cheaper price.

Lakeshow23
04-09-2005, 02:24 PM
Usually it's the fuel level sending unit. Shouldn't be that expensive as a part. Labor may cost a bit, so check to make sure the fuel pump is in good working order. If not, might as well replace that too.<br>

knicks125
04-10-2005, 09:48 AM
Thanks all for the good advice. I told my friend to get check out a few local mechanic and/or dealers to see how much will be looking at...as far as cost is concerned...<p>it's not the fact that it's not working, just that it's really annoying having to keep resetting the trip odoemeter to watchguard the level of fuel in his car...at least that's what he told me...

neburg964
04-10-2005, 05:29 PM
"it's not the fact that it's not working, just that it's really annoying having to keep resetting the trip odoemeter to watchguard the level of fuel in his car...at least that's what he told me..."<p>This task involves pushing a button...<p>And a trip odometer will always give a more accurate depiction of fuel range than a stupid gauge.<p>No offense intended, but if your friend gets bent out of shape having to push a button with each fillup, I'd hate to see how he reacts to more serious things in life, or having to rely on him to perform those more serious tasks.<p>Unless this problem is covered under warranty, tell him to save his money and just live with having to push the button. It's really not that big a deal...

Lakeshow23
04-10-2005, 06:21 PM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>neburg964</b> &raquo;</i></TD></TR><TR><TD CLASS="quote"><br>Unless this problem is covered under warranty, tell him to save his money and just live with having to push the button. It's really not that big a deal...</TD></TR></TABLE><p>I disagree. I too have a defective fuel level sending unit in one of my cars, and it's annoying to always keep track of mileage. What if you don't completely fill your tank? What if you tell the gas attendant, "let me get $3.69 USD on pump 11?" The gas gauge becomes a little more important then, doesn't it? Just a thought to keep in mind while you tell other people how to spend their money... <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/2cool.gif" BORDER="0">

MontrealMustang
04-12-2005, 05:59 AM
Gas Gauge? That's expensive! Just do what I do, shake the car. You'll know how much gas there is in it just by the type and loudness of the sound of slushing gasoline.<p>I'm a cuntry geenius <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/bangin.gif" BORDER="0"> <p>*theme song from the Dukes of Hazzard plays*

knicks125
04-12-2005, 08:50 AM
Thanks all for the help. I am going to tell my friend to go against reparing this minor defect...it certaintly seems like it's not worth the money that he is going to have to spend on it, especially considering how expensive labor is...<p>The only reason, I think, he wants to get it fixed is the fact that he's thinking about selling his car...so i think he's under the impression that if he fixes everything that's wrong with his car he would be able to ask for more on the sale...i always tell him just to take the small hit, b/c the difference won't be much, but you'll never know how much you'd have to spend fixing your car at a mechanic and/or a dealer, and the fact what they might do behind the scene (like performing some magic trick to make your engine fall out of your car <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/laugh2.gif" BORDER="0"> )

Verdegrrl
04-12-2005, 12:11 PM
What brand, model, and year of car?

Superfresa
04-12-2005, 03:33 PM
Just hit the fuel gauge lid a couple of times whenever it doesn't work.... works every time in My Land Rover....LOL...

knicks125
04-13-2005, 05:05 AM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Verdegrrl</b> &raquo;</i></TD></TR><TR><TD CLASS="quote">What brand, model, and year of car?</TD></TR></TABLE><p>Honda Accord, '97 I think

Verdegrrl
04-13-2005, 11:05 AM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>knicks125</b> &raquo;</i></TD></TR><TR><TD CLASS="quote"><p>Honda Accord, '97 I think</TD></TR></TABLE><p>Hmmmmm. I don't know if they use the old style mechanical float or the electronic potentiometer. If it's the float, the linkage can bind. If it's the electronic type, high sulphur levels in the fuel can sometimes contaminate the reader which lives in the tank. <p>Your friend might try a can of BG44K fuel system cleaner (get it at a Porsche/Mercedes dealer among others). It's about as heavy a duty cleaner as you can get without harming the seals or other parts of the system, and since most German cars use the electronic system, it doesn't harm those either. Easier and cheaper than messing around in the tank.

knicks125
04-13-2005, 11:37 AM
Thanks for that <IMG NAME="icon" SRC="http://images.zeroforum.com/smile/emthup.gif" BORDER="0"> <p>I'll let him know and tell him to give a try...will report back soon <IMG NAME="icon" SRC="http://www.germancarfans.com/images/forums/beigesmilewinkgrin.gif" BORDER="0">

Lakeshow23
04-15-2005, 09:25 PM
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>MontrealMustang</b> &raquo;</i></TD></TR><TR><TD CLASS="quote">Gas Gauge? That's expensive! Just do what I do, shake the car. You'll know how much gas there is in it just by the type and loudness of the sound of slushing gasoline.<br></TD></TR></TABLE><p>On most cars the fuel level sending unit mounts next to the fuel pump on the tank. The fuel level unit itself isn't usually the most expensive part . It's the labor involved.