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My uncle swore by using ATF to free a stuck diesel injector
He told me to pull the injector, fill the cup with automatic transmission fluid, and let it sit overnight. I tried it on a 7.3 Powerstroke that came into the shop last week. After about 12 hours, I cranked it over and it fired right up, no more misfire. I was pretty shocked it worked that well, honestly. I always figured you needed a special solvent or just had to replace it. He said the detergents in the ATF break down the carbon better than diesel alone. Has anyone else tried this trick, or is there a better way you've found for a really stuck injector?
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faithn512d ago
Old mechanics swear by that trick for a reason. The detergents in ATF are no joke for breaking up carbon. It's a cheap fix that beats buying a new injector right away. Just make sure you clean out all the ATF before you run the engine for long. It's not a permanent fix if the injector is truly worn out, but it can get you going.
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