Me and a buddy were wondering if and when it is necessary to pop test your injectors. He has a 94 with 290,000 on stock injectors. Im in the same boat with 220,000 plus. Any info is appreciated.

 

probably wouldn't be a bad idea if you don't have the coin for some new sticks. At least you could make sure all of them are spraying correctly.

 

eh these cummings motors are made for 500,000+ without an oil change

 

altho i wouldnt reccomend the last

 

 

Yea not exactly sure what the oil change comment had to do with pop testing injectors... but

 

what i'm sayin is if you don't have to change the oil til 500k why would you have to test the injectors and 220k?

 

i run about 650k between oil changes... i have to add a quart every 200k or so though.

 

well that's not good, probably should look into some lucas oil stabilizer to help that problem out

 

any rough running or white smoke or poppin id be pullin those bad boys out and have them pop tested. second thats is if and when is now if its doin it . theres no need in pullin them if there runnin fine and mileage wears injectors. mine were about shot at 160 and never knew it but ask a better question and ill have a better answer.