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To fix a gas tank seal leak you must drain the gas into an empty bucket and remove the tank. Then, cover the outlet holes with putty and re-install it.
Fiberglass won't stick to ABS and the styrene plastic that holds the fiberglass patch together dissolves in gasoline. Put a little gas in an expanded styrene (i.e., Styrofoam) cup to see what you can expect. Check out the link for something that might work.
yes it will. be sure the surface is clean inside and out and free of paint and rust. make sure the edges of the hole are smooth and rounded. scuff the area with coarse sand paper. apply fiberglass and use a disposable rolller to push all the air out. if it is sticking to the roller use shopping bag to cover the fiberglass and resin on the tank before you roll it, or clean your roller. after the fiberglass dries, sand with 180 grit, lightly as to scuff it. clean with alcohol and prime it with a grey primer. fill any low spots with body filler. scuff with 240 grit. clean and prime again. fill any imperfections with glazing putty. finaly scuff the entire tank with 320 grit prime and paint to taste. method works with any fuel and any tank. higher grade fiberglass resin is recommended.
If it's cracked, it might be made of fiberglass, or plastic. Fiberglass patch or two part epoxy.
Gas tank leak repair at Canadian tire or replace it,replacement is the best choice if you're keeping the car.
Look around for a manual/instruction booklet that came for your car. if you don't find one and you can't fix the fuel tank, online is always the best option.
Stop leak will generally plug up holes u want plugged, but they will also plug up holes u don't want plugged. Better to fix the heater core.
I don't think you are able to fix this rust problem, take you car to your local repair shop or car dealer. They should be able to take care of your problem and fix it for you. Hope I can help.
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how much to fix a gas tank on a 93 grand cherokee?
You have to get your hands dirty and need to get under the vehicle and locate the fuel lines from the tank to the engine.
Unfortunately, fiberglass is very difficult to fix. It may be best to purchase a new hammer.