Changed Fuel Filter and Now Won't Start

If all else fails...and only if Brett's tip does not start it.

I watched a CAT tech start one by...

A) key on until "wait to start light" is out, wait one more minute with key still on for preheat grid to cool.

B) spray WD40 in the air filter intake with air filter removed (not in a dusty area) while cranking engine. Make sure it is atomizing well, not spraying a stream

C) shut down immediately after quick smooth run (air is purged)

DO NOT USE ANY KIND OF HIGHLY FLAMMABLE SPRAY !!!! ONLY WD40 !!!

It works I saw it and I would rather do this than a tow with the attending risk of body damage etc.

TRY BRETT'S (wolfe10) procedure first!!!

If you can't get it running yourself, it might be cheaper to have a mobile repair service come to you.

I would call Cat and ask them for any tricks.

Likely you have air in the line all the way from tank to filter base.

Answer is to slightly pressurize the fuel tank (put a rag/hand over the fill with an air chuck) while someone else opens the bleed screw on the filter base. If no bleed screw, slightly unscrew the filter. Do this until fuel with no bubbles runs out.

Then use the engine starter to do the rest.

Before loosening the filter while using the priming pump, confirm with your chassis maker (they are the ones who installed that single filter system) that the filter is on the PRESSURE side of the pump. If, as I suspect, it is on the SUCTION side of the pump, all you will do is suck more air into the system.

The injectors are electronic, not a good place to bleed. I would not do it that way.

Try loosening the filter a bit while the prime pump is running. Wrap a rag around the top to absorb any escaping fuel/air or it could get messy. I've also heard of compressed air injected into the fuel tank via a compressor hose wrapped/sealed with a rag through the filler neck.

Air in the injector lines. You'll probably have to bleed them out.