Will NOT start!!!

[Chopper]

Dave, sounds like it may be a fuel pressure regulator...not a big deal if that's the case.

[VXNIT]

Got it to run via applying gas and eventaully it continued to run on its own, seemed alittle unstable with RPM's. I am wanting to get it to Isuzu not sure what to have them do to diagnos problem.

[etlsport]

i would agree with chopper.. id start off with the fuel pressure regulator.. its an inexpensive part (50) and takes about 30 minutes to replace.. has done wonders for my idle and rpm drops

[johnnyapollo]

Cheapest thing to do first is to look at the gas filter and make sure it's not blocked with crud - $10 part and a few minutes for the swap. Run some gas treatment through your take to melt out any water would probably also be a good idea - those two things are cheap and may fix the issue. Next I'd look to cleaning the EGR and Throttle Body (might as well change out the PCV as well) - that can affect the idle by fooling the EGR, as this may be an idle issue (running too lean or rich will affect the motors ability to idle) - once again cheap fixes. After that I'd look at the fuel pressure regulator - some have reporte improved mileage by replacing with new so there could be an added benefit. It's hard to tell exactly what's going on if you aren't throwing a code.

-- John

[MrCrowley]

Maybe- if you washed it, you got water in some engine electric stuff? Until it dries out, it may not run/run well. Used to be a big problem with distributor/older cars and wiring looms under the hood. Not as common today, but possible. If you can get it to run well enough to warm up under the hood, and it goes away, this was probably the case. I wouldn't panic just yet. Maybe eyeball all your fluids, filters, dash lights, etc. before warming it up as a precaution.

[Mrcln1]

I just had the same problem and they had to replace my intake gasket. I don't know why yours would alll of a sudden start acting up but mine did that same thing. Good Luck.

George

[johnnyapollo]

Intake gasket replacement was on down the list of causes - I was trying to give a list of cheap "first tries" - the VX manual has the wrong torque values for the intake so they are generally over-torqued, causing gasket failure over time (even if not immediately apparent).

-- John