gas guage problem!

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Dec 9, 2004 | 10:35 AM

cnusa

Thread Starter

4th Gear

Joined: Dec 2004

Posts: 4

Likes: 0

gas guage problem!

hello new here. have a 98 and the gas gauge is going from full to empty and back to full again. any ideas thanks

Dec 9, 2004 | 10:38 AM

Automag928

Melting Slicks

Joined: Aug 2002

Posts: 3,164

Likes: 0

From: Lutz FL

Could be the gas you are using...Try doing a search, you should find tons of posts on this! Good luck!

Dec 9, 2004 | 10:45 AM

cnusa

Thread Starter

4th Gear

Joined: Dec 2004

Posts: 4

Likes: 0

well i did a search and dont like what i found. im a gm parts manager and i replaced the rh sender twice now. iv called gm and nothing so i was going to see if you guys have any ideas thanks jason

Dec 9, 2004 | 11:00 AM

DRK-SYD

Instructor

Joined: Apr 2003

Posts: 236

Likes: 0

From: Houston Texas

Alot of members have had this problem including myself. If you have a chevron where you live start using it because it has Techron. If not just buy a bottle of Techron and it should clear the problem right up. Many think that sulfites from lesser grade gasoline collect on the sending unit and interfere with the signal.

Dec 9, 2004 | 11:03 AM

cnusa

Thread Starter

4th Gear

Joined: Dec 2004

Posts: 4

Likes: 0

can i use the bg 44k?? plus shouldnt it work for a while after the new sender or is it the LH sender acting up. gm says to replace the rh.

Dec 9, 2004 | 12:44 PM

GUSTO14

Le Mans Master

Joined: Sep 2003

Posts: 8,812

Likes: 2,028

From: eastern NC

Quote:

Originally Posted by cnusa

hello new here. have a 98 and the gas gauge is going from full to empty and back to full again. any ideas thanks

If the gauge is going from zero to full, as if there is a loose connection somewhere, an area I've had a problem with is the cluster circuit board. The gauges receive info from the circuit board via a computer ribbon across the back of the cluster. The ribbon connects to the circuit board in three places by plastic clips on the circuit board. If these clips come loose, even one side of the clip, the ribbon can lose contact with the circuit board.

This happened to me and caused me to lose one of the turn-signal indicators. Turn signals operated fine, I just lost the indicator. Changed the bulb and still nothing. Then I looked closely at the previously mentioned connectors. I noticed that one side of one clip had come loose. I reclipped it and viola, turn signal works fine.

It's probably a long shot, but if all else checks out, it's worth a look and costs nothing but time to fix.

Good luck,
GUSTO

Dec 9, 2004 | 02:06 PM

cnusa

Thread Starter

4th Gear

Joined: Dec 2004

Posts: 4

Likes: 0

i got with one of my techs and we found another bulletin on it so if it works ill deff let you guys know. (ps it was giving me two diff codes so thats what we are looking at)

Dec 9, 2004 | 03:32 PM

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

Likes: 2,402

From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

I have a 98 and had the same problem. Try running a couple of treatments of Chevron Techron fuel system addative. I ran two bottles through and switched brands of fuel to 93 octane High tier fuel. Problem seems to be resolved.

BC

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Dec 9, 2004 | 03:54 PM

1stGlance

CF Senior Moments Member

Joined: Jan 2004

Posts: 1,329

Likes: 1

From: Oklahoma City Oklahoma

gas sending units

I had the same problem with my 2K vert - they replaced both sending units (under extended warrenty) and all is well again. Cost was around 1400. ugh

Dec 12, 2004 | 08:39 AM

#10

kg54trains

Burning Brakes

Joined: Oct 2004

Posts: 925

Likes: 4

From: EXTON PA

98 corvette

I am not a tech, but when I brought my used c5 vette i had the gas guage problem. I went to my auto parts store and used a good fuel injector cleaner, not stp, Lucus or Chevron product did the trick

Dec 12, 2004 | 08:57 AM

#11

chriskaw7r

Pro

Joined: Feb 2004

Posts: 657

Likes: 1

From: michigan

Quote:

Originally Posted by 1stGlance

I had the same problem with my 2K vert - they replaced both sending units (under extended warrenty) and all is well again. Cost was around 1400. ugh

I get so mad when I see this, the dealers are scam artist's $1400 geezzz the level senders are only like 30 bucks each for the float. I have seen the Service Bulletin for the gage problems and would say that they would not fix 90% of the problems that we see.

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