ThunderJ

I've read the thread on removing/repairing a sticky fuel sending unit. There is a post where someone claims to have had success by adding Techron to the tank. Has anyone else had success loosening up their fuel sending unit by adding Techron or is there some other type of fuel additive that could help with the problem?

antfarmer2

Good old moonshine but very easy to pull and fix or replace.

QCVette

I agree. C4's are really easy to pull and fix.

However, on the C5 forum there are a lot of people that claim techron has helped. From what I have read, it sounds like techron dissolves sulfur deposits. Those deposits are a common problem on the C5's and cause the sending unit to give erratic readings or completely fail. I don't know if the C4's fail for the same reasons to know if that logic applies to C4's or not.

Good luck.

bls72bmw

Adding Techron certainly couldn't 'hurt' anything.
What is the amount others are claiming helps? Is it after one bottle for the entire tank, or are we talking about mass quantities? That stuff is pricey but it's probably good for the system either way. Very low effort to try it, so why not.

davewhtt

Hate to waste moonshine that way but i do agree it is an easy job/fix

ThunderJ

I ordered the gasket today.
I'm a fan of Techron, have been using it regularly for 6 years in my motorcycles, a lot of cruiser riders rave about it. I looked through the plug socket in one of my previous bikes (before/after) could see the difference Techron made totally cleaning out the cylinder. I just bought my '95 Coupe, put my first tank of gas in it with a bottle of Techron and then 75 miles later noticed the fuel gauge and range issue.

antfarmer2

I would run the gas down before pulling it then you can clean your tank while your in there. Then take your filter off best to break both lines behind the filter than get the tool to release the lines from the top and pull the filter from there. Blow the lines out and put back togther.

HlhnEast

Another vote for Techron. I also burn Chevron gas as much as possible because of it. As mentioned "couldnt hurt".

Harleyyac

Seemed to have worked for me .

383vett

No harm in trying. <$4 a bottle at Costco.

vette196

I just got 32 oz for 12.50 at amazon

ijakie1

Thanks, Any post or procedure on ur "pull & fix" solution? HELP!

2011KLR

Search. It is out there.

ctmccloskey

If there is any corrosion on the bolts that hold the plate with the Fuel Pump attached to the fuel tank be sure to coat them well with a good penetrating oil before taking them off. If they are still hesitant when you try to remove the bolts then use a Hot Air Gun to heat up the hardware and soak it in penetrating oil again. There are a bunch of the bolts and they break off easily. With one bolt broken you might have a constant fuel leak so it is important not to break any of them.

Have all the stuff you need ready and handy. Before you do anything you want to have a Fire Extinguisher handy and preferably an empty tank or close to it. It is not that hard to do but make sure the electrical connectors are Clean and tight.