Poorman
Registered User
Working on my 1987 f350 6.9 with really bad smoke on startup. Injectors were replaced 8 years ago but I've only put 19,000 miles on them,(sits a lot). So I bought an injector pop tester and I'm trying to test them myself. They all hold pressure up to 1800/1850lbs but unless I really pump hard and aggressive they don't really pop, with a slow or even moderately fast stroke it looks more like an old man trying to take a leak. Good video's a scarce but it looks like they should pop even with a super slow stroke. What should I be seeing with these type of injectors? Thanks