Recent content by gto2003

Re: Fuel pump sucking air? I think i have got it. I tested the fuel pressure and with the vacuum line unhooked i had 50 psi pretty steadily. When i hooked the vacuum line back up I had about 40 but when i gave it a rev it went nuts. it was bouncing between 40 and 60 psi. I bought an AFPR and...

Re: Fuel pump sucking air? OK... So i put a fuel pressure gauge on the truck. With the vacuum line hooked up it idles with about 42 PSI (vibrates between 40 and 45). When you rev the truck up though the needle vibrates between 40 and 60 ish (just a blur). The truck recently got a Walbro 255...

Re: Fuel pump sucking air? i have a boost gauge but it isnt hooked up right now. i unhooked it when i was trying to chase down vacuum leaks and never spliced it back in. what is a CEL?

Re: Fuel pump sucking air? no.. its been pulling timing since i bought it. This is like the truck just completely turned off. I actually thought it died the first time.

Re: Fuel pump sucking air? I only did it twice.. once when i fixed the low coolant in the reservoir and once after i filled it up to see if that corrected it. It really feels like when the truck is really low on gas and it pulls in air i just dont know why or how it would be doing that. Also...

Re: Fuel pump sucking air? What do you mean by the fuel sending unit? Are you talking about the fuel pressure regulator? Or back by the tank where the lines hook up?

Re: Fuel pump sucking air? I think you mean in/hg (inches of mercury) not psi. Full vacuum in PSI is 14.7. if you convert my 10 psi to in/hg you get roughly 20.

Re: Fuel pump sucking air? Have, Plugs are new, Wires are fairly new, fresh cap and rotor (5k miles), and the only vacuum leak i can find is at the throttle lever. By the gauge the truck shows 10ish psi vacuum at idle.

So... I have been fighting my truck since i got it tryin to get it running right.. I have replaced all kinds of stuff and couldnt figure it out until yesterday. I realized the cap on my IC was loose because the previous owner has bent up the locking tabs and it must have come loose (and the heat...

Re: Noob here... Please help Sorry i guess i never filled that part out. I am located in Cedar Lake, IN. I have spent HOURS on the link you guys posted. I have already replaced the plugs, wires, cap, rotor, coil, vacuum lines, i have a walbro pump on the way. I tried to email a scan but im...

Well i have had my typhoon for about 10 months now and i must say i am getting kind of discouraged. I cant figure this thing out.. and every time i think i have something fixed i scan it and its crap. The thing i cannot figure out right now is why my truck would read 17.4 psi of boost on a...