Injector question for the Mechanics

[Kent]

How do you figure out if you have a injector that's bad or multiple Injectors? Side note how long does it usally take to get alot of air out ? I took the Fuel Filter Housing off and have had air trouble since. that's been about 300 miles later.

[Dirk]

Have a buzz test and contrib/balance test run. No reason to guess with injectors.

[sledhed99]

is it smokey on startup?

[Kent]

Please I'm dumb country boy speak in layman terms

[SCUFFY828]

like said before , cylinder contribution test needs to be run, that basically tells you what cylinder it is , then you have to determine if its a compression issue or an injector , usually air is pushed out of the system , within a few miles or no more than 20 miles , why do you think its an air problem

[Dirk]

Originally Posted by Kent

Please I'm dumb country boy speak in layman terms

These 2 tests will need to be run by someone who has the correct equipment. It's not something you can do without it. Simply put, one test will measure electrical functionality and the other will measure operational functions.

[SCUFFY828]

Originally Posted by Kent

Please I'm dumb country boy speak in layman terms

a buzz test is done with a good quality scanner , it doesnt tell you if the injector is bad , it basically tests the electrical system to the injector

[Dirk]

Originally Posted by SCUFFY828

like said before , cylinder contribution test needs to be run, that basically tells you what cylinder it is , then you have to determine if its a compression issue or an injector , usually air is pushed out of the system , within a few miles or no more than 20 miles , why do you think its an air problem

Listen to this person. Nothing more needs to be said.

[sledhed99]

well if you have alot of air and have put 300+miles on the air is not going away, there must be a leek and it is sucking air somewhere.

[Dirk]

Originally Posted by sledhed99

well if you have alot of air and have put 300+miles on the air is not going away, there must be a leek and it is sucking air somewhere.

*IF* there is that much air, damage may have already been done to the injectors. It's something I'd want tested. Guessing with injectors is a crap shoot.

EDIT: 300 miles isn't that much, but depending on the amount of air... who knows.