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Old Dec 22, 2011 | 08:29 AM
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Default Fuel Gauge---inop

Hi Folks...just bought a 2002 Coupe from Rogers Corvette in Maitland, FL. Great car....near perfect, but on way home from purchase...drove it about 18 miles...and the fuel guage light came on and "low fuel" message came on and the fuel guage shows empty.

I pulled into gas station and put only 2 gallons in car....guage is dead. Was told this is a common error and to use "Sea Foam"

This sounds more like a guage problem to me...but asking everyone if this is a common problem or do I really have a guage problem.

Appreciate getting the facts...so I can determine proper fix.


Thanks!
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Old Dec 22, 2011 | 08:44 AM
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Joe Rad, congratulation's! When you fill up go to Exxon 93 with Techron, you also may want to also buy some seafoam. Common problem with these fuel pumps and guage indicators. Wvery now and then when I fill up, and cruise on down the highway my guage will read half a tank. Then it corrects it self. good luck and happy and safe motoring. Now how about some pics? Merry Christmas!
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Old Dec 22, 2011 | 08:56 AM
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Add the concentrated techron to your next few fill ups...
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Old Dec 22, 2011 | 09:25 AM
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Welcome to the C5 world! This is a common problem. When this happens it feels like you have lost your best friend! Did me. Anyway, put the Techron in the tank and fill up. All will be well in your C5 world again. No worries!
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Old Dec 22, 2011 | 12:38 PM
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At some point in the middle of the 90's, I got the impression that some Techron would get into the oil, and we should only use one or two treatments per oil change. With people talking about such a higher frequency of use, do we feel that it is not a problem in our C5 application?
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Old Dec 22, 2011 | 01:16 PM
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Lucky for you that Techron is now on sale at Advance auto parts, Buy one Get one free. Welcome to the club!
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Old Dec 22, 2011 | 01:26 PM
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One more for 2 Techron treatments fixed mine too!
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Old Dec 22, 2011 | 01:37 PM
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I think Techron is a placebo but it doesn't hurt... Good luck..
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Old Dec 22, 2011 | 04:33 PM
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Originally Posted by k0ts
I think Techron is a placebo but it doesn't hurt... Good luck..
BTY - I'm addicted to placebos.

I would give them up but it wouldn't make any difference.
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Old Dec 22, 2011 | 06:02 PM
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Thanks!

I will go look for Techron
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Old Dec 22, 2011 | 06:09 PM
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Be sure to add the techtron to an empty tank of gas. The problem is a fungas of some sort on the fuel sensors.
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Old Dec 22, 2011 | 06:13 PM
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Originally Posted by hornet7
The problem is a fungas of some sort on the fuel sensors.
In English please..
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Old Dec 22, 2011 | 06:56 PM
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Originally Posted by oh1vette
Add the concentrated techron to your next few fill ups...
And there's the answer for most.
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Old Dec 22, 2011 | 07:40 PM
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Originally Posted by Paul Wood
Welcome to the C5 world! This is a common problem. When this happens it feels like you have lost your best friend! Did me. Anyway, put the Techron in the tank and fill up. All will be well in your C5 world again. No worries!
I put a bottle of Techron 20oz, every 3000 miles or 6 months whichever comes first.

PS- You can bring the gas guage back alive again at anytime without having to wait for the Techron to clean it out.:

1. Turn the ignition key to the "ON" position but do not start the engine. Press the "RESET" button to turn off any warning messages that may be displayed on the driver information center.

2. Press and hold the "OPTIONS" button. While holding the button down, press the "Fuel" button four times within ten seconds to enter into the diagnostic mode. Wait while the computer cycles through all of the diagnostic functions automatically and displays related codes.

3. Press the "RESET" button to clear all codes. Press the "E/M" to exit the diagnostic mode.

Last edited by Ikester; Dec 22, 2011 at 07:45 PM.
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Old Dec 22, 2011 | 08:52 PM
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Does frequent use of Techron compromise the engine oil?
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Old Dec 22, 2011 | 09:24 PM
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Originally Posted by duegatti
Does frequent use of Techron compromise the engine oil?
No,been using it for years and even had Blackstone labs test my oil at 5000 miles. Only comment that they had was i could have gone at least 7k miles on that oil.
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Old Dec 22, 2011 | 09:49 PM
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Well, if you had your oil tested at 5000 miles, and you use Techron every 3000 miles or 6 months, then I would imagine that you only had one Techron use, maybe two, on that oil. I guess we need to know your oil change frequency to know how many Techron uses it sees. It seems that some people here are using it a "few" or "several" times, so that an oil might see six or so Techron applications. I think the bottles used to even have a caution on them regarding frequent use on a single batch of oil. That's what I'm wondering about.
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Old Dec 24, 2011 | 05:04 AM
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Originally Posted by JoeRad
Hi Folks...just bought a 2002 Coupe from Rogers Corvette in Maitland, FL. Great car....near perfect, but on way home from purchase...drove it about 18 miles...and the fuel guage light came on and "low fuel" message came on and the fuel guage shows empty.

I pulled into gas station and put only 2 gallons in car....guage is dead. Was told this is a common error and to use "Sea Foam"

This sounds more like a guage problem to me...but asking everyone if this is a common problem or do I really have a guage problem.

Appreciate getting the facts...so I can determine proper fix.


Thanks!

Supposedly, the problem is caused by a high sulphur content of some gas. It corrodes the wires on the sending unit which apparently increases wire resistance causing the guage to do the "dipsy do".

Eventually the corrosion will eat the wires to the breaking point. I have seen a pump to that effect. GM issued a Tech Bulletin which programs the computer to overcome the higher resistance. In my opinion, that is only a delaying action for the inevitable.

If the corrosion hasn't advanced too far, I believe Techron helps to keep the wires clean. I had the problem on my "98 3 months after I bought it 4 years ago. I used Techron in the next 2 tanks of gas and every 4th tank after that and (knock on wood) haven't had the guage go goofy since then.

I last changed my oil in June '10 (5600 miles ago) and right now it is clean and slick as ever and maintains normal pressure.

This has been my personal experience and hope it is of some help to you. "Placebo" or not, I'll continue to use Techron.

Do a "search" on Fuel Guage or Gas Guage, etc., and you'll find numerous post on the subject.

One thing I don't understand, none of the other non-Vette cars I own or have owned, have had this problem. So, is it caused by non-coated or inferior wires on the sending unit in the Vette??

Cheers
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Old Dec 24, 2011 | 09:17 AM
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There are four possible causes of your problem
1. Most common - as posted- deposits on your fuel sending units caused by using gas with ineffective detergent packages. the fix is a few tankfuls of fuel system cleaner and permanently switching to a better quality gasoline see www.toptiergas.com There are many choices in fule system cleaner Techron is fine, so is SeaFoam, Shell V Power, Gumout,
2. a bad ground connection find it and clean it
3. a faulty gauge
4. faulty sending unit
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Old Dec 25, 2011 | 10:55 AM
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Originally Posted by duegatti
It seems that some people here are using it a "few" or "several" times, so that an oil might see six or so Techron applications. I think the bottles used to even have a caution on them regarding frequent use on a single batch of oil. That's what I'm wondering about.
What is your source for this information that frequent use of Techron is bad for the oil? Sounds like another internet myth.
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