Anyone on here have any CAT C7's in a Blue Bird A3RE?? (I don't think it matters what body). I have a '05 that lost power so bad that it couldn't pull itself up a small incline. I had it towed back to the shop to check into it. I found that there was hardly any fuel getting to the fuel filter head. So I'm thinking that the lift (transfer) pump has gone bad. Has anyone had one go bad on a C7??? If so, where is it located?? Is it mounted on the back of the injection pump, or is it mounted remotely??? Thanks for any and all input!! Timm .......
Edited by - knuckleheadrider on 01/22/2015 1:36:30 PM
Get a new pump. It will come with instructions and there is a certain way that you have to do it, otherwise you will make a mess of your HEUI pump and have to get a new one. HEUI pump has to come off as there is not enough room to do it while still attached. Do you have the HEUI oil line removal tool?
You can also check all of your fuel lines and filter housing for trash in the lines. If you have the spin on water separator look for the anti-drain back valve in it. Ours looked like a toilet flapper and the rubber valve was missing. The bus wouldn't pull it's own weight. I thought it was the HEUI pump too, $1200 later and I still had the problem.
C7 CAT fuel lift pump
Posted - 01/22/2015 : 1:35:54 PM
