How does one know the IP is getting weak??

[flyingv]

Wondering what the signs of a weak IP are. I am planning a ATS type upgrade - (Turbo houseing,4''down pipe,3.5'' exhaust ) very soon. I want to be sure my IP is healthy. Right now I have a time at start ups but only if I diden't plug her in over night but that is only due to some glow plugs being burnt.

Smoke? Well, if I didnot plug her in over night like at deer camp ( oh my God ) yea she smokes good but it is white. At idle no smoke. On the road - really only under load and it will be black.

Its just the power. Where did it all go? Sometimes I wonder "if I cant find another gear we aint gonna make it to the top of this hill!" She will lug down - get the last gear and my foot will be on the floor. No more power. New filter don't seem to cure the prob. So , I plane to do the ATA upgrade. But, you know she did better than this 100k miles ago(when I first got her). I have about 169k now. I don't wan't to replace the pump if I don't need to. Heck, I can't afford the ATA mod. much less a pump. But I need to do it now if I need to while she is down... Any Ideas??

11/93 F350 4x4 crew 169k mi. auto. trans.

[cdnsarguy]

Did you check the fuel pump.........

Take the Schrader valve core out and hook a hose and pressure guage to the outlet.........crank engine see what you get for pressure, should have 4-6 psi from a good lift pump.

Volume test same place hook a hose to it crank over the engine 10 seconds you should get 1/3 pint of fuel minimum or 1 pint at 675 rpm in 30 seconds... engine running

Important the fuel shutoff solenoid (FSS) wire on the IP should be disconnected if you do not want a start just cranking. Re connect FSS after test complete.

[flyingv]

Dang! No kiddin - I should have thought of the lift pump. I bet its the one who is sucking mud. Thats what it feels like - it runs up till it gets no more fuel volume and that is the end of power.

Bet you are right. Thanks! I will keep you posted..

>V< [img]/ubbthreads/images/graemlins/smile.gif[/img]