Attention: TDR Forum Junkies I know there has been a great deal of give and take on the subject of fuel pressure. My brother-in-law with a '01 just had his lift pump replaced, but as Paul Harvey says, now for the rest of the story.
page two!
He was experiencing some stumbling on acceleration while on a trip from Tampa to Pittsburg. When he got here, we decided that maybe it was a fuel delivery problem and took it to the local dealer to change the filter as I don't have any facilities to do the work and besides, I live in a townhouse where the neighbors frown on much vehicle work etc. They measured the pressure before changing the filter and it was 9 in and 1 out. Sounded like a clogged filter. After the filter change, static pressure was good but engine still wouldn't run. They then measured the lift pump flow and found it way low. So, a new lift pump. Pressures and flow then looked good, but truck still wouldn't get out of it's own way. Called Star. A couple more test and they concluded the injection pump had failed. After the injection pump was replaced, it ran great and even gets a better fuel economy.
Now for the point of this story.
I am going to put the three gage dash pod on my new 04. 5 and guess I am looking for a little hand holding on my choices. I plan on EGT, (post turbo), transmission temp, (outlet to cooler), and now, fuel pressure. Will the lift pump output pressure, actually filter outlet, give me sufficient warning of a clogged filter or failing lift pump such that I have time to schedule the service? What change in pressure drop is expected under normal conditions?
As always, this forum is the greatest and thanks for your thoughts!
George
page two!
He was experiencing some stumbling on acceleration while on a trip from Tampa to Pittsburg. When he got here, we decided that maybe it was a fuel delivery problem and took it to the local dealer to change the filter as I don't have any facilities to do the work and besides, I live in a townhouse where the neighbors frown on much vehicle work etc. They measured the pressure before changing the filter and it was 9 in and 1 out. Sounded like a clogged filter. After the filter change, static pressure was good but engine still wouldn't run. They then measured the lift pump flow and found it way low. So, a new lift pump. Pressures and flow then looked good, but truck still wouldn't get out of it's own way. Called Star. A couple more test and they concluded the injection pump had failed. After the injection pump was replaced, it ran great and even gets a better fuel economy.
Now for the point of this story.
I am going to put the three gage dash pod on my new 04. 5 and guess I am looking for a little hand holding on my choices. I plan on EGT, (post turbo), transmission temp, (outlet to cooler), and now, fuel pressure. Will the lift pump output pressure, actually filter outlet, give me sufficient warning of a clogged filter or failing lift pump such that I have time to schedule the service? What change in pressure drop is expected under normal conditions?
As always, this forum is the greatest and thanks for your thoughts!
George
