Engine/Transmission (1998.5 - 2002) did I check my fuel pressure right?

[MxerChris]

got a grease gun hose and a good mechanical gauge and checked my fuel pressure under the hood, I first put it in at the plug away from the motor (pre-filter I think) and got 16psi, then put it in the hole closest to the motor (post-filter I think) and had the same readings, both only dropped a few psi at WOT. I know this is not under a load but it seems the lift pump is working now. I left the guage attached under the hood where I can at least pop the hood and have some idea if there is pressure there or not. Does this sound OK?

 

[Steve Campbell]

It sounds like you are on the ....

... right track. I went ahead and installed mine in the cab for constant monitoring. Putting a load on does make a difference. It sounds like yours is functioning properly. What you have now is way better than being totally without.

 

[RKohn]

I'm not too happy...

Started getting a nasty stumble @ WOT latelty so I hooked up an old AC gauge to the shraeder port on the pump tonight. Heard it spit a little when I screwed it on and fuel dribbled out, so I know the pin in the valve was depressed. But when I started it up... ... . zippo, zero, zilch, nada!!!



:{ 95K and O psi. :{



Kinda hope the pump is trashed too, so I can begin bombing with a new one.



We'll see what the DC warranty gods have in the wind for us tomorrow. :-{}

 

[RKohn]

On the road again...

Took my baby to the dealer yesterday. Left it overnight while they next-dayed the lift pump (They were out of stock). New lift pump installed today @ no $$$. Checked it when I got home and my gauge matched their reading.



14psi @ idle!!!



Oo. Oo. Oo.