Hi all, new to this forum. I tried finding a similar thread in the search bar with no luck, so please bare with me as this may be beating a dead horse for some of you guys. I recently traded my 2.8 S10 for a 10th gen 4.6. My plan was to rebuild the top end, which I’ve done. Anyways, I replaced the fuel filter shortly after getting the truck, I’ve replaced the pump, relay, pressure regulator, pcm relay, etc. The works. I’m still getting no pressure to the rails, which wasn’t a problem prior to soldering some points in the instrument cluster. I had the battery disconnected while doing so. Any ideas as to what the problem could be? I also pushed and released the inertia switch several times to ensure that wasn’t the issue. Thanks in advance.

 

bump?

 

So you bumped a 18 minute old post on a '10 gen 4.6 motor which isn't super specific or a ton of people have' and think someone has an answer already?


and you changed out a ton of parts and soldered your own connections....I would check all your connections first as that would be the first thing to fail.

normally would say check each part you replaced but if you changed multiple that would be pretty tough.

 

Not too familiar with how this forum works, so I bumped to see if I’d get a response. The only connections I soldered were the ones behind the odometer to fix the instrument cluster illumination. And yeah, it’d be tough. The pump primes but only for a short second.

 

HINT/TIP: Put your vehicle information (year, model, cab, trim, engine, wheelbase, _x4 drive, mileage, modifications, etc., etc.) in your signature -OR- provide it in your posting(s).
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1999, XLT, extended cab, 4.6 long bed, 4x4, 235,000 mi., short tube headers, leveling kit, rebuilt top end

 

Disconnect the line at the rail and open and close the door or cycle the key whichever causes the pump to cycle. If you don't get fuel out the line the problem is between the pickup and the end of the line as long as you have enough fuel in the tank (don't depend on the gauge to tell you that).