Joe2007

Just wanted to update you I flipped that diaphragm around and it fixed my problem. Thanks for all the help.

I put a new one in it bc the old one had a little hole in it. I did not blow in the new one and I have not checked the fuel pressure I don’t have the tools to do that. Can you tell me what I need and where to check it at?

I put a new diaphragm in today, but it’s still doing the same thing. Do you have any other ideas?

I put a new diaphragm in today, but it’s still doing the same thing. Do you have any other ideas?

FJH Just getting around to working on my truck. I can blow in the smoke-limit device.is there anything else to check on?

What’s the easiest way to check the fuel pressure and where do you hook up at?

I’ve replaced throttle cable fuel filters nothing has changed it has no power loaded or empty. It will get up to speed, but it takes it forever. it does not smoke at all. I’m not sure when you push the throttle down and it moves the lever on the pump all the way forward I do see a little bit of oil in my air cooler. Could that be causing me some trouble?

What’s the best way to check for boost leaks?

What are you talking about Vmac?

No faults. 10 speed. It’s got 2 110 gal tanks. But I have one of them turned off have not used it for a couple years.

I changed both of them.

Hey guys I have a 1990 Mack ch600 with a E7-300 I drive the truck just about everyday. I’ve started have some trouble with it but can’t figure it out. It starts and runs good not smoking out anything. The trouble I’m having is it’s got no power. Same routs everyday the hills I was climbing at 30mph I’m now climbing around 18 or 19mph and it’s the same way loaded or unloaded.