No fuel pressure

**Fastdaddy** · 10-27-2009, 08:17 PM

Hey needs some quick help if anyone online. I just completed putting engine back together after a heads and cam job. Motor turns over just fine not weird noises. I don't have any fuel pressure, and the guage is not working. Do you feel that this may just be a fuse? Advise if you got it.

**Smittro** · 10-27-2009, 08:19 PM

Originally Posted by Fastdaddy

Hey needs some quick help if anyone online. I just completed putting engine back together after a heads and cam job. Motor turns over just fine not weird noises. I don't have any fuel pressure, and the guage is not working. Do you feel that this may just be a fuse? Advise if you got it.

I'd say if it worked before the head job, go over everything again, including fuses..

**Smittro** · 10-27-2009, 08:20 PM

Did you have your tank out? Forget to plug the harness back in?

**Fastdaddy** · 10-27-2009, 08:24 PM

Originally Posted by Smittro

Did you have your tank out? Forget to plug the harness back in?

No tank removal. Had zero issues prior to installs. Have not check any fuses yet. Will do that next.

**Smittro** · 10-27-2009, 08:26 PM

Originally Posted by Fastdaddy

No tank removal. Had zero issues prior to installs. Have not check any fuses yet. Will do that next.

Yeah, it was just a thought incase you desided to upgrade your pump while doing heads..

**Fastdaddy** · 10-27-2009, 08:27 PM

Originally Posted by Smittro

Yeah, it was just a thought incase you desided to upgrade your pump while doing heads..

Good point for sure. Where exactly is the fuse panel on this thing. I have no manual so I need to know which fuse it might be.?

**Redphoenix1998** · 10-27-2009, 08:28 PM

yeah check your fuses. it's common to unplug the fuse to the pump to prime the fuel system.

**Smittro** · 10-27-2009, 08:28 PM

Can you hear the pump when the key is in the run possition? Can't figure why a fuse would pop doing heads, but it is possible if the battery was still connected or one of the terminals bumped the batt while you were working on it..

**Fastdaddy** · 10-27-2009, 08:29 PM

Originally Posted by Smittro

Can you hear the pump when the key is in the run possition? Can't figure why a fuse would pop doing heads, but it is possible if the battery was still connected or one of the terminals bumped the batt while you were working on it..

Yeah, you know how things kinda go nuts when your hooking ground back up.

**Smittro** · 10-27-2009, 08:31 PM

Check for pinched pump leads too. I dunno just throwing stuff out there. Crazier stuff has happened..

**bamaz28** · 10-28-2009, 05:09 AM

are we sure its primed

**Fastdaddy** · 10-28-2009, 05:49 AM

Originally Posted by bamaz28

are we sure its primed

no, not sure at all. I have never taken fuel rail off before and i was thinking some kind of air lock? Primed? What's the best way to do that?

**bamaz28** · 10-28-2009, 05:55 AM

do you have pressure at the filter? i think you can simply have the ignition on and but first pull the line off the filter to see if you have pressure there first. rule out its the pump before going farther.

**Fastdaddy** · 10-28-2009, 06:23 AM

Originally Posted by bamaz28

do you have pressure at the filter? i think you can simply have the ignition on and but first pull the line off the filter to see if you have pressure there first. rule out its the pump before going farther.

good point. Will check that out soon I as can. All fuses checked out as far as I could tell. Still don't here anything like a pump coming on at the turn of the day. Thanks for the input.

**pajeff02** · 10-28-2009, 06:47 AM

Fuel pump relay? Any ground wires get unbolted? Were fuel lines plugged off with anything while disconnected?

**bamaz28** · 10-28-2009, 07:22 AM

Originally Posted by Fastdaddy

good point. Will check that out soon I as can. All fuses checked out as far as I could tell. Still don't here anything like a pump coming on at the turn of the day. Thanks for the input.

GLAD to help

**Redphoenix1998** · 10-28-2009, 09:58 AM

No pump running that you could hear....hmm....Well, just to be sure, take a transmission funnel, stick it in the gas tank, ask a friend to key it on and listen. If you don't hear anything, check your connections to the pump. Make damn sure the fuse is not blown. If everything looks good, replace the replay to be safe by just swapping it with a relay you won't really need at the moment. Just make sure it is the same type of relay. Then see if it primes. If it does, then get a new relay

**Fastdaddy** · 10-28-2009, 11:42 AM

Originally Posted by Redphoenix1998

No pump running that you could hear....hmm....Well, just to be sure, take a transmission funnel, stick it in the gas tank, ask a friend to key it on and listen. If you don't hear anything, check your connections to the pump. Make damn sure the fuse is not blown. If everything looks good, replace the replay to be safe by just swapping it with a relay you won't really need at the moment. Just make sure it is the same type of relay. Then see if it primes. If it does, then get a new relay

All lines look good to pump. Is the relay under hood the only fuse link there is to the pump? I know there is a guage fuse in door panel, but that good. Other guages work. The fuel guage will not read anything, it stay below the E. I put extra fuel in just to make sure not out of gas...that would be to easy.

**0rion** · 10-28-2009, 01:15 PM

relay is under the hood on the drivers side

**Fastdaddy** · 10-28-2009, 08:52 PM

Found it..Thanks for everyone's help. It turned out that I grounded one of the ring terminals that I think was on the rear of one of the heads to one of the valve cover bolts, which is not a good ground since it's insulated with rubber gasket. Screwed it to fire wall and pump fired up. Dyno and tune coming up and will post some results. Thanks again.