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2004 montana speedo guage problems

4 messages,  Last post on Mar 03, 2009 at 7:39 PM

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#1 of 4
2004 montana speedo guage problems by fk2448
Mar 02, 2009 (2:47 pm)
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this morning the speedo guagewas ackting up at idle it was showing 30mph when wife took it to work it was showing 90 mph when she thought she was doing 60mph. awhile back the gas guage is still acting up, when you fill it up the needle woulg way past full and stay there til about a half tank or so,sometimes if you shut off for awhile it would work ok. so whats up with it and can i fix it myself. thanks
#2 of 4
Re: 2004 montana speedo guage problems [fk2448] by kennie
Mar 02, 2009 (2:59 pm)
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Replying to: fk2448 (Mar 02, 2009 2:47 pm)

My speedo is working fine except when really cold outside (-30 degrees) it makes electrical short sounds (although I know they are not shorts) for a second or two. My gas gauge has be doing exactly the same as yours - works until the talk hits about 20% full and then the needle bounces from empty to full a couple times until the tank is 5% full then the LOW FUEL light on the dash comes on and the fuel gage takes one more jump up for a bit before it resides back to bottom (no fuel) - you'll find other forums talk about it... it is likely the same problem as mine (which I have not fixed for 3 years now) where the fuel level sensor in the gas tank needs to be reparied/replaced. If they do a scan the code that comes out indicates there is a problem with the fuel level sensor (that is, if it is the same problem). Some have reported that the wire connections coming into the van from an area around the seat behind the driver also causes this and there is a test that can be done (that I don't know about) that they can determine if the sensor is gone or it is something else before the sensor int he tank (something about how many amps it draws at various talk levels). The cost to fix is around $600 b/c they need to drop the tank, extract the unit, take it appart, determine parts and replace if required. That's all I know in 30 seconds... good luck.
#3 of 4
Re: 2004 montana speedo guage problems [kennie] by fk2448
Mar 02, 2009 (4:10 pm)
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Replying to: kennie (Mar 02, 2009 2:59 pm)

it wasnt cold out this morning the van is always garaged and when it was started this morning. when wife came home from work this evening it was doing the samething. yea are fuel gauge has been doing this for a couple of ears too,we look at the computer for miles to empty most of the time.
#4 of 4
Re: 2004 montana speedo guage problems [fk2448] by fk2448
Mar 03, 2009 (7:39 pm)
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Replying to: fk2448 (Mar 02, 2009 4:10 pm)

wife drove van to work today and nothing happend. ran like its suposed to,go figure

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