2nd Generation Dodge 24 Valve Powertrain

Evening. I'm convinced, through extensive perusal of this and a few other forums, that I need a fuel pressure gauge. I do a fair bit of hauling of an 11,000 pound 26' fifth-wheel at speeds of 50-55mph out here in the mountains of the West. I'd appreciate the recommendation of a fuel pressure gauge. Thanks.

Today in Massachusetts it -5 degrees. Went outside and started the truck. Let her warm up for 20 mins. Running like a champ. Fuel pressure reads 0 psi. Went through the diagnosis found the fass fuel pump fuse was blown. Replaced the fuse got my fuel pressure back. I couldn't believe how well the truck was running just off the injection pump. Without the fuel pressure gauge u would never know the difference. I would have been driving around with no lift pump, till it blew up the vp44. Wondering why the fass blew the fuse, thick fuel? Everyone needs a fuel pressure gauge with these trucks.

Ok Gang... I've seen a bunch of you wondering about needle valves... Well here I'm going to explain the reason and why needle valves should be used on all fuel pressure gauges including electric gauges. Now first thing first is why do we need a needle valve? Well the needle valve is a adjustable damper for the fuel flow. It prevents harsh or water hammer pulses from reaching the gauge or sender. What is water hammer? http://en.wikipedia.org/wiki/Water_hammer Here is what the pulse looks like... But now figure that is pulse open and close at half the RPM's but for 6 cylinder. This pulsation with eventually wear out or eat the gears…

I am to a point after many years with a BD low pressure indicator that I am in need of a true gauge on my 02. My question is this. I want a gauge that is electric and doesn't use isolators and needs bleeding ect. I want the best quality with least hassles. I read continuous threads on a lot of forums of the gauges with isolators causing more issues than the rest of the rig. Which gauge mfg is the cats meow? I don't care about the bling the face has just after reliable accuracy without hassles. On my 05 I am after an electronic gauge cluster like edge BD quad ect, looking for input on the best choice in that area also. I want to keep the 05 simple and uncluttered versus ru…

All new Mechanical gauge, big line kit, Draw straw, just tried second brand new Raptor 150 and fuel pressure goes up with acceleration and rpms. I adjusted to 18 psi but the dang pressure drops back and forth between 18 and 15 at idle..... you can time it with a watch, back and forth. Then when you rev it the pressure goes up way too high. Grid heaters are disconnected and I checked with a volt meter for voltage fluctuation but it's charging steadily when engine is running I switched to a different new raptor 150 today thinking it was the pump regulator... weird... because after you adjusted it to the 18 you get going down the road and the dang pr…

I'm sick of my isolator that goes to my ispro fuel pressure guage. Every so often I get low readings and I have to push back the rubber thingy in the isolator and fill it back up to get it to read right. Would it be safe to eliminate the isolator and have diesel go all the way to the gauge?

Installed a new air dog and vp44 and decided to put a fuel pressure guage in my truck is it normal for fuel pressure to drop going up a hill.

Just got my truck out of shop and had a vp44 and airdog 165 and set of guages electric . my question is they installed the fuel pressure guage sender at the vp44 the guage is going from 20 at idle to 0 to 5 at wot to 0 to 20 at crusing. i crawled under truck and the airdog will run awile and then stop pumping while truck is idleing. is that normal for it . any advise would help just dont want to damage my vp44 from no fuel pressure

I have a fuel boss mechanical pump and I had an issue with some debris being stuck in the bypass valve, causing the fuel pressure to plummit. I cleaned it out and put it back together and everything seemed to be as normal around 18psi. Though, today when I went for a drive the fuel pressure jumped up to 45-50psi. Thinking the valve was stuck closed I opened it up to find all was normal. I know I've installed the valve in the correct orientation as well :/. I'm at a loss at this point, can't figure out why the pressure is so high! Any ideas? I drove for about 10 miles, how much harm could this have caused at 45psi? Thanks

My fuel pressure has been acting crazy. Started gradually increasing from 16 lbs to 27 lbs. I thought at first that it was due to cold fuel. I live at 9500 ft. Had this system for about 35,000 miles or so. 2001 2nd generation with DDRP Fass 95 mounted near the fuel tank. It did the same thing a while back and I got the pressure adjusted back to where I wanted it. Now I have to try it again. Is it the ball and spring in the Fass pump you think?

My truck is a 2001. I have an older AirDog, and an ISSPRO electric fuel gauge. The issue I'm having is that when I first bump the ignition I get about 15-16psi of fuel pressure. Then running, or even if you let the pump shut off and then rebump the ignition, the fuel pressure goes up to 26psi. I really need to get my test gauge on it, but two different sending units and gauges have been put on it, and both read the same. I was wondering if anyone has any ideas of what I should check? Is it the AirDog, that's marked as being regulated at 15 psi, did I screw up with how I installed the gauge? Any input would be greatly appreciated. Also, the AirDog was on before…

Thought I'd make another little one for this. Doing some diag and upkeep and stuff from other thread this weekend and came across this... So I can turn key on, visually see needle on gauge move 0-5 psi, next do a key bump and it shows nothing, no matter how any times I try key bump. I removed fuel line from vp44 and into a bucket. Performed key bump again, fuel flows out great fills up a gallon pail and then some. When truck is started gauge shows 15psi even while driving. I also have a spring kit from FASS to increase pressure just a tad. However I have never seen more than 16psi, only sits at 15. Idk why that is??? Stock is around 15…

Hey guys I have to put a vp44 in a friends truck this weekend and he was wondering about a pressure gauge or a light? I told him that a gauge works great but if you are not always looking at it it does you no good, so he dicided on a light. So my question is has anyone made one up themself or do you just buy one from someone? Thanks:thumbup2:

Curious if anyone running a sump vs a straw system has seen a drop in their fuel pressure after install. I have FASS 165G that would always see 16-18 psi no matter how hard I step on the skinny pedal. I just installed a sump into my 54 gallon metal tank and now my pressure sits at 14 and dips to 12 at times. Currently one fuel press sensor ~1 foot before the VP, and the Quad FP sensor is in the FASS pump, both reading within 1 psi of each other.

My fuel pressure line needle valve arrives monday Are you guys just running the needle valve only,,, for you fuel pressure gauge

Some May recall my previous problem with my Fuel pressure. Initially the thought was air in the lines. But now I think it's something to do with the air dog pump block area itself. It still could be a house in this area,i dunno. What I do know, is that the problem is stemming from this area. Last night after work, I killed the batteries trying to get the truck to crank over. Luckily I had a guy to jump me. On the first startup of the day, it cranks over no problem. Sits afterwards, then it becomes a problem. This has happened a few nights in a row now. But not bad enough like Last night. I'll bump the starter to get the pump to cycle, a…

Alright guys, I replaced my lift pump a couple of weeks ago with an Air Dog 100, installed the draw straw V, and big line kit. Everything was going well and I had 16.5 PSI at idle, 13.5 at wide open throttle, consistantly. This evening I was running just below a 1/4 tank and stopped and filled up. Started the truck and had 16.5 psi. I drove 24 miles home and watched the fuel pressure drop slowly to 5 psi by the time I got home. The truck is running fine, and I see no fuel leaks under the truck. My first thought is "bad fuel" and the filters are clogging. I have an extra set of filters for the Air Dog and the factory filter which I plumbed in with the Air Dog. My fi…

Good afternoon, I have a quick fuel pressure question. I recently noticed that my FP gauge reads between 14-14.5 psi while driving, it was reading 17psi-18psi a few weeks go. I assumed that the filters may need replacing, although they only have 2500 miles on them if that. I have not swapped filters out as of yet, but noticed something odd today. I bumped the engine over and FP gauge showed 16psi, but when I fired truck up the gauge would fall to 14ish psi. Would the VP44 drawing fuel cause the gauge to drop. I have adjusted the Airdog 4G in the past to show the 17-18spi while running. the gauge "T" with sensor is approx 20 inches away from VP44. …

I have a 2001 cummins 2500 all stock. Just recently put fuel gauge on and at idle I am reading 13psi and driving down highway I am at 10-11psi. I have a new lift pump on order but wont have for a few more days. Is it ok to keep running truck with this fuel psi till I get new pump in this Thursday. Or should I leave it parked for the few days.

I have a 98 cummins 24v just turned 92000 miles, stock as far as i know. It sis come with 2 gauges, boost and fuel pressure, though itès only 15psi. It used to bury the needle just after startup. But recently, on a fifth wheel trip to the southeast, it started at about 9 psi and slowly rose to about 14 psi. It was shortly after a fiilup so i thought it might be bad fuel, so i added some diesel kleen in the white bottle and things seem to improve somewhat. I continued on to cold Canada, where i am cuurently at a friends place and the fifth wheel is sitting in a public parking lot (with permission, of course). Yesterday I started it up and it was at 6 psi, and rose slowly …