Billyw
New Member
I have a 94 580 Super L with the Case 4T390. Had it about 8 years and approximately every other year it goes to missing, then shuts down and I spend a day or two bleeding air from the injector lines and when it is satisfied it runs and everything is back to normal…..apparently it is that time of the year as it performed this trick about a week ago and I am still seeing air in the lines and this time it won’t fire off….no black smoke, nothing…just fuel and air bubbles. I have been told by several friends that it is the injection pump and I just need to replace it once and for all. It’s a Bosch and I have never replaced one…my question is does the new pump have to be timed (somehow) or is it just a matter of removing the old one and putting in the new?