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Had a stubborn injector on a 6.7 Powerstroke that just would not budge
The truck came in last week with a bad miss, and number 3 injector was stuck tight. I tried the normal puller, then heat, then more pulling force, but it was not moving. Out of ideas, I grabbed a can of brake cleaner and sprayed it around the injector base to clean off any built up carbon. After letting it sit for about ten minutes, I gave the puller another crank and it came out smooth as butter. I think the cleaner got into the tiny space and broke up the carbon lock. Has anyone else had luck with this trick on other engines?
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jade_young887mo ago
Feel your pain, man. Those stuck injectors are the worst.
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fionarodriguez7mo ago
Honestly, spraying brake cleaner near an injector sounds like a bad idea waiting to happen. That stuff can wreck seals and o-rings real fast. I get why @jade_young88 says they're the worst, but adding a harsh chemical seems like a quick fix that could cause a bigger leak down the road. A proper penetrating oil made for the job is way safer, even if it takes more time. I'd never risk it on a customer's engine.
2
kellymurphy6mo ago
Yeah but come on, it's just a quick spray around the outside. @fionarodriguez is right that you shouldn't soak the thing, but a little brake cleaner to break the carbon seal isn't gonna end the world. It got the job done.
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