Msch3390
Registered User
Hello all,
About two weeks ago while driving at "highway speeds (60)" 6.9 IDI N/A started to make a metallic rattle instead of that usual "tractor sound" while running, especially when trying to accelerate. This was accompanied by a loss of power and a significant increase in black smoke on the application of the throttle. The truck also seems to be losing some prime and creates a hard start. The issue is worse when it is warm out. I also feel a lack of compression when downshifting, making me think it may be more of a compression problem.
Took this to two local shops:
1. Gave up and admitted that they could not figure out what was wrong.
2. Checked oil pressure, and fuel pressure before the IP for 500$. They wanted 1900$ more to test the IP and Injectors.... And I really can't spend 2400 to maybe figure out the issue. Or another 400$ for a compression test.
The mechanical fuel pump is new.
Return lines were recently replaced, no leaks.
Injectors were replaced about 2 years ago.
IP looks older or original.
No air intrusion from tank to FWS (According to the shop).
I would like to narrow this issue down a little bit more but I'm not sure what to do next.
My most desperate course of action would be to replace all the injectors and the IP for half of what the shop wants to charge just to test these parts.
I'm also debating sending the IP off to Conestoga/Moose, does anyone have any experience with them rebuilding an IP or testing injectors?
Any other input or advice is appreciated.
About two weeks ago while driving at "highway speeds (60)" 6.9 IDI N/A started to make a metallic rattle instead of that usual "tractor sound" while running, especially when trying to accelerate. This was accompanied by a loss of power and a significant increase in black smoke on the application of the throttle. The truck also seems to be losing some prime and creates a hard start. The issue is worse when it is warm out. I also feel a lack of compression when downshifting, making me think it may be more of a compression problem.
Took this to two local shops:
1. Gave up and admitted that they could not figure out what was wrong.
2. Checked oil pressure, and fuel pressure before the IP for 500$. They wanted 1900$ more to test the IP and Injectors.... And I really can't spend 2400 to maybe figure out the issue. Or another 400$ for a compression test.
The mechanical fuel pump is new.
Return lines were recently replaced, no leaks.
Injectors were replaced about 2 years ago.
IP looks older or original.
No air intrusion from tank to FWS (According to the shop).
I would like to narrow this issue down a little bit more but I'm not sure what to do next.
My most desperate course of action would be to replace all the injectors and the IP for half of what the shop wants to charge just to test these parts.
I'm also debating sending the IP off to Conestoga/Moose, does anyone have any experience with them rebuilding an IP or testing injectors?
Any other input or advice is appreciated.