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One bad vp44?
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One bad vp44?
Unlike most injection pumps, the VP44 is fuel cooled and lubricated. Mar 17, 2011 · If you are suspecting you have bad vp44 check this out. No fuel at injectors. The alternative involves installing a new relay and fuses to power the lift pump from the battery. FROM BLUE CHIP DIESEL. Your one stop shop for 1998-2002 24v Cummins powered trucks. Blue Chip Diesel is the VP44 diesel injection pump authority specializing in high performance diesel vehicles. Your one stop shop for 1998-2002 24v Cummins powered trucks. If a truck has 250,000 to 300,000 miles, it could be on its third or fourth injection pump. 9 Cummins bad injectors is a rough idle9 is not idling smoothly or has a slight misfire, then it's a sign that there's an issue with the injector's armature valve, plunger, or the nozzle pintle. If your truck "Bucks" under hard load or towing this is an indication the engine is probably starving for fuel. It would be less likely to run fine, cut out, then run fine again. Your main problem is the VP44 which is your injection pump. If your truck "Bucks" under hard load or towing this is an indication the engine is probably starving for fuel. Here we talk about something that needs to be checked first before TS a long crank issue. Crank and Cam sensors are not agreeing with the VP44. We may earn a commission for products purchased through links on this page But start and let the fass run a few times, have someone do it for you while you wait for fuel to come out and close the lines. HOW YOU CAN DIAGNOSE THE VP44 FUEL SYSTEM ACCURATELY. The complaint may also be described as "loss of throttle", "no throttle response", or "intermittent low power", "engine only idles. The OEM timing commands range from ~10* to ~26* the smarty range is 16* - 26* p0216 means when the ecm asked for XX* the vp44 responded back saying "sorry I could only get XY* of timing Share. The final step for removing the VP44 involves using Industrial Injection's new pump-removal tool. My truck was throwing the po216 code so i replaced the pump and it went away. 29245 posts · Joined 2010 Yes, check the banjo on back of the head and all other fittings and lines for loosness or leaks, especially any that have been opened up recently. 08:00 am … A truck will usually start with a bad crank sensor because it is timed for about 5+ seconds from the ECM computer then picks up and runs off of the Crank sensor signal. The valve opens at approximately 97 kPa (14 psi). The pressure issue is exacerbated if your truck is modified, since it will require more fuel. Suspicions were the VP 44. If no codes AND 00 or earlier engine with both crank and cam sensors AND other key-on sequence is normal - ie dash lights, fuel … Most common pump found on Dodge Pickup Trucks. 10 second cranking cycles and got engine started. 8 injectors, , ported fireringed head , 110 springs, full billet DTT ,ARP studs, four inch mbrp, ARE dcu, , line x ,bedslide, Save Share. Symptoms of a bad motherboard and processor include a computer that does not boot at all or a computer that starts to boot and then stops. The risk-to-reward ratio of DWAC stock has become unfavorable F. It's a good tid bit of information to know and have. but would frequently get the. the 98. If you have what I call a rolling skip, I mean one that seems to be one cylinder this time tested, and another next time, or is not clearly the same cylinder every time its line is loosened, that always means a bad injection pump, in the VP44 fuel system, if it is NOT air. (2) Remove valve from pump and banjo fitting. Pull ecm cluster c1 and ohm out the crank sensor signal, cam sensor signal and a/c pressure. The fact still remains from Bosch the actual designer of the Bosch VP44 injection pump states that injection pump should return 70% of the fuel back to the fuel tank for cooling and lubrication purpose of the VP44. I want to make sure this isnt a busted diaphragm or some other vp44 related issue before my warranty runs out on it. Hey Everyone, I bought a 2001 Dodge 2500 with 60K on it a few weeks ago. Often a bad crank sensor will not move up when cranking, It shoud show 150 to 200 while cranking the starter. n3182 Wisconsin Highway 54, Black River Falls, Wisconsin 54615, United States. There's a lot of advice out there on there internet—some of it here on Lifehacker—and it can sometimes be difficult to tell whether it's good or bad. 5-2002 Dodge Cummins is designed to eliminate all the issues with the dreaded VP44 injection pump and its P0216 death code. I am starting to believe it is either fuel valve solenoid (between the six distribution valves) or the advance solenoid or the computer (PSG) on top of the VP. For first-generation engines equipped with the lower injection pressure Bosch VE distributor style. Check out the deal on Stock Replacement VP44 Injection Pump 989L Cummins at Diesel Power Products99. 9L Cummins-powered '98 1/2 to '02. 1. This causes the steel timing piston to vibrate in the aluminum bore of the housing and the result in a short time is the housing wears to the point that fuel bypasses the piston and full advance cannot be. Still chasing down my hard start issue after sitting. It comes with a ONE YEAR unlimited mileage warranty Blue Chip Diesel is the VP44 diesel injection. Yes sir. 4 out of 5 times the VP44 failure is electronic. Hard starting, rough idle, idles fine but no throttle, runs very bad when given throttle misses like its out of timeing, somthing drains batt when sits for a few days. Pulled all injector line off VP44, bleed lift pump a VP44 banjo fitting, connected VP44 electrical plug. When the lift pump fails, the truck generally continues to run, often without symptoms. 5-2002 Dodge Ram 24 Valve Cummins is a relatively simple diesel engine. Did the hot wire test and truck wouldn't start. Disconnect the VP44 fuel pump drain line from the T-fitting and plug it. Cracked lines, got fuel after three approx. Unlike most injection pumps, the VP44 is fuel cooled and lubricated. Mar 17, 2011 · If you are suspecting you have bad vp44 check this out. I have owned my truck for 4 years and the only code I have ever had was a 0500 which was due to a bad speed. But why do they happen? And is there anything we can do about it? Let's look at the science behind a bad mood, what it does i. A diagram of the sockets on the VP44 wiring harness connector is included below. From tuning, to custom compound turbo kits, we can get your truck where it needs to be! If everything seems under control, you're not going fast enough. Another symptom of 5. Human beings naturally have a desire to conform to feel accepted, and those who devi. Warranty: One year on workmanship ONLY NO PARTS. I have a VP44 now that is just about dead Runs, starts, drives fine, no hard crank, but it has almost no power. There's white smoke coming out from behind the ECM (on the side of the block) where the fuel filter is (I haven't been able to isolate the leak. It ran perfect and started on the first lick. With the used vp44. Sep 24, 2015 · Failure among VP44s is quite common. FROM BLUE CHIP DIESEL. No fuel at injectors. HOW YOU CAN DIAGNOSE THE VP44 FUEL SYSTEM ACCURATELY. The CKP sensor works by using a magnetic field to. Blue Chip Diesel is the VP44 diesel injection pump authority specializing in high performance diesel vehicles. Choose One: Core Charge:? Accept + $600. The two sensors are not interchangable. I have an Airdog and a fuel pressure gauge. What your saying does sound like bad VP44. This one is the return so left of where my fuel supply is and yes it's plumed strait from fass to vp44. I actually acquired a P-pump a few weeks ago, I'm undecided about keeping it or selling it. There is very little you can do but apologize and swallow that mi. If no codes AND 00 or earlier engine with both crank and cam sensors AND other key-on sequence is normal - ie dash lights, fuel … Most common pump found on Dodge Pickup Trucks. Usually with the vp44's if you lose or get a weak lift pump it takes out the vp447L Cummins, 4x4, 2500, 6sp manual, std cab, 8ft bed, SBC clutch OFE, Air Dog, Fluiddamper, Wild Card Customs intake, Smarty ME, 5" TBE, Banks intake w/ SS, Banks Intercooler, BD Steering box brace, Custom gauge Cluster by CW6. used shuttle bus for sale wisconsin I assume it is cranking but not firing? First thing is to pull codes with a scanner. Custom, build specific tunes! Tunes Available Eco: This is a tune focused on MPGs. 11939 posts · Joined 2008 Apps generally gives a code when bad. While there are numerous causes of bad odor in the house, u. The stock pump gave me 90k miles and was replaced under warranty. and stock injectors will prob just make the turbo hard to light. If you have a 251, 253, 1688 or 1689 code these only pertain to the Injection Pump and are strong indications the electronics in the VP44 are BAD, and that the pump is bad. No codes (and I check pretty regularly) it just went out while towing a camper down the highway. Nov 23, 2007 · This symptom is typically caused by either a faulty APPS (Accelerator Pedal Position Switch) or a faulty computer on the top of VP44 injection pump. Scheid also provided one of their competition VP44 pumps, and. 5-2002 235HP pump that will fit Dodge Cummins Turbo Diesel with Automatic or 5-speed 215HP & 235HP Dodge 5. Alright guys heres my problem. See full list on drivingline. Even so, I bet you still can't tell me that those pressures can have anything to do with a miss at idle. There are many advantages that make 5. Im new to 24 valves need some help with these electronics. took me about 15-20minutes for my truck to start after a complete head. 32 Primary Charger 300hp (6x. The computer on the top of the VP44 is susceptible to heat and many many heat cycles. 08:00 am … A truck will usually start with a bad crank sensor because it is timed for about 5+ seconds from the ECM computer then picks up and runs off of the Crank sensor signal. This injection pump will restore the power and improve your fuel economy back to what it was when your truck was new. 2001 QCSB 5 Speed, BHAF, 155k miles. recorder walmart p0336 - Crankshaft Position (CKP) Sensor Signal. From tuning, to custom compound turbo kits, we can get your truck where it needs to be! If everything seems under control, you're not going fast enough. also replaced my dads which showed no code. You can buy it in parts stores but don't get their cheapest Chinese one, Get a good brand or upper store brand. There's nothing better than watching a perfectly tuned diesel going down the track with that "magical haze" following it! Whether you're building a drag truck, pulling truck, or just a daily driver, I guarantee I can get the most out of your setup! This Months Featured Customers. It is also used to connect the fuel return line (banjo fitting) to the fuel injection pump. 5-2002 Dodge Cummins is designed to eliminate all the issues with the dreaded VP44 injection pump and its P0216 death code Industrial Injection CAT C15 ACERT Premium Plus All-In-One Engine Kit00 "Close (esc)" Gas Universal Turbos II Gear Gear. Hold the T in place when tightening any of the grommet nuts. Looking for Custom, build specific tunes for your Quadzilla Adrenaline? Look no further. Blue Chip Diesel is the VP44 diesel injection pump authority specializing in high performance diesel vehicles. Price for install isn't bad, but you can get a rebuild from Chip with a new computer for a couple bucks more, and that's worth it $2350 with one year labor. jkidd. 99 2500, Quad cab, 4x4 47RE, BD pressure lock on it, small BD 90/140 chip on the VP 44 connection plug, 17" 3rd gen wheels55 diffs. Water, dirt, and debris can cause damage to the pump's internal components. 3L Ford Powerstroke There is a number stamped on the pump near the fuel lines. 9L Cummins VP44 Injection Pump Friday night we went out to Northeast Dragway to get in some good quality test n tune. Being the only way a Bosch VP44 injection pump can do this is to have fuel pressure above 14 PSI to open the overflow valve. Let me give a little background on this, my VP44 has been dying for about eight months. just replaced one just replaced a vp44 on a 99 dodge and it did not have a code. It's an electronically controlled and regulated, distributor-style pump (also known as a rotary type) that was chosen to fuel the 24-valve due to its ability to meet the emissions standards of the late '90s. There are 2 pumps. The electronics in the VP44 pump are cooled by a large amount of return fuel flow through the injection pump and back to the tank. This VP44 problem is so mainstream that companies have started. Plagiarism is bad as it does not give the original author recognition for their work, it prevents the plagiarizing student from learning and it fraudulently deceives the person who. shooting in napa ca today There's nothing better than watching a perfectly tuned diesel going down the track with that "magical haze" following it! Whether you're building a drag truck, pulling truck, or just a daily driver, I guarantee I can get the most out of your setup! 1badvp44 Performance LLC, Irving, Wisconsin4K likes. usually when that wait to start is flashing it has something to do with the ECMand IF u have a bad ECM, the ECM isnt controlling the. Still chasing down my hard start issue after sitting. Compare offers for personal loans for bad credit online. The M47 engine at first used old-school technology but as the years progressed it was adapted for newer stuff. FROM BLUE CHIP DIESEL. The housings on the VP44 wear out due to low fuel pressure from bad lift pumps causing the diaphragm in the front of the pump to rupture. From what I have read, anywhere between 10 and 25 psi are good numbers. Trucks that operate in hotter parts of the country tend to have more problems than those in cooler regions, the worst case scenario for these injection pumps is to be mounted on an engine that gets shut off multiple times in a day's work. I did this because part of my VP44 troubleshooting symptoms was eventually an extended crank start on an incline. These movies speak most eloquently to the era of bad feelings. Test for power at lift pump. The code is for camshaft sensor. I'm assuming it can't be a bad code if the truck runs perfectly with the light on and off just curious why it comes on and off 58/65/14 turbo, 5in exhaust, 150dap injectors, quadzilla, hot rod vp44, sb cold air Intake, bd exhaust manifold, big ram Intake manifold, head studs, dual disk clutch, fass 165 techanically inlet pressure does assist the timing piston move, but a healthy vp44 should have no trouble running with 0 psi inlet pressure. Autozone probablly gave you what you asked for. The VP44 style pump is commonly fitted to these vehicle/s: Nissan Patrol ZD30 3ltr (pre common rail) Nissan Navara ZD30 3ltr (pre common rail) Holden Rodeo 3ltr (pre common rail) Ford Transit Van 2. Be careful don't break it off.
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This is the best price choice if you aren't sure of how long you are keeping the truck, or just can't afford more. Noticed slight more power,and calculated somewhere in 0. The complaint may also be described as "loss of throttle", "no throttle response", or "intermittent low power", "engine only idles. The VP44 is aprox $1500 give or take a few hundred. I installed the VP44 first and then the Fass 95. 9L Cummins-powered '98 1/2 to '02. 1. FROM BLUE CHIP DIESEL. I have had a hard start for the past 3 weeks and I have NO idea what's causing it. VP44 Timing Principles Timing in the VP44. Sep 24, 2015 · Failure among VP44s is quite common. Its a very clean tune and focuses more on efficiency than power. WalletHub makes it easy to find p. Next day "problem fixed itself" -A month ago the Wait to Start light would not come on before start up. HOW YOU CAN DIAGNOSE THE VP44 FUEL SYSTEM ACCURATELY. This why people running 180* thermostats or just cold coolant see issues with performance. Certified Bosch 5. The biggest factor in the success of a VP44 pump is that of temperature. Take it to dodge and they cant figure it out. The only code it has ever thrown is P0122 APPS. Then it fired right up after purging fuel lines. Next day "problem fixed itself" -A month ago the Wait to Start light would not come on before start up. tsgiselly Next day "problem fixed itself" -A month ago the Wait to Start light would not come on before start up. If you do not have an adequate flow of fuel going through it, it will get hot and shorten the life. Will shift through every gear just fine. 5-2002) Can I mess up the truck running a bad VP44 That low may be your issue and or the cause of bad VP44's 99 2500, Quad cab, 4x4 47RE, BD pressure lock on it, small BD 90/140 chip on the VP 44 connection plug, 17" 3rd gen wheels55 diffs. But why do they happen? And is there anything we can do about it? Let's look at the science behind a bad mood, what it does i. 5 being equipped with the Bosch VP44 distributor style rotary injection pump. The Adrenaline is the MOST POWERFUL plug and play module out of the box found anywhere. The VP44 Injection Pumps category is dedicated to providing high-quality, reliable fuel injection pumps for 19989L 24v Cummins Turbo Diesel Engines. IGOTACUMMINS is an IOA. VP44 acting up, throwing codes. So my vp44 is going bad. Better to just get a new remanufacured pump. It is also used to connect the fuel return line (banjo fitting) to the fuel injection pump. The overflow valve (a check valve) is used to route excess fuel through the fuel return line and back to the fuel tank. Here are the symtums. #6 · Aug 10, 2014. www zales credit card p0216 literally means the ecm asked for xx* of timing and the vp44 could only get yy* of timing. No electronics are covered. Part # IIS0470506028SHO5-02 Diesel 5. Being the only way a Bosch VP44 injection pump can do this is to have fuel pressure above 14 PSI to open the overflow valve. 093 Connector Tubes &. How to Replace the '98 1/2-to-'02 Dodge Ram's Problematic VP44 Injection Pump. This lack of fuel results in one of two types of failure within the VP44. Two more hours trying to get the piece of the driver out of the screw. com Nov 23, 2007 · This symptom is typically caused by either a faulty APPS (Accelerator Pedal Position Switch) or a faulty computer on the top of VP44 injection pump. 5-02 Dodge Cummins trucks could best be described as a Band-Aid, or temporary fix, while Bosch was in the process of producing the common rail injection pumps that would be featured on the 2003 and newer. Both Scheid Diesel's Lightning VP44 (pictured) and Industrial Injection's Hot Rod VP44 enjoy reputations for durability while supporting high horsepower. Supposedly it affects about 100,000 blocks, but not only in Dodge Rams. I was slowly… The "53" comes from a casting number on the side of the block and is used to identify the problem blocks. p1689 - No Communication Between ECM and Injection Pump Module. Replacing the VP44 without checking the lift pump will lead to many tears and an empty wallet as you will be replacing VP44’s repeatedly if the lift pump is not functioning properly. The M47 engine at first used old-school technology but as the years progressed it was adapted for newer stuff. Primed the system, started the truck and let it idle through the rough stuff (about 2 seconds). Often a bad crank sensor will not move up when cranking, It shoud show 150 to 200 while cranking the starter. and one day on the road it died on him. side by side flags These pumps, manufactured by Bosch, have come a long way since their early days of being known for reliability issues. This VP44 to P7100 "P Pump" Conversion Kit for your 1998. 100hp over stock VP44 Injection Pump - fits 98-02 Dodge Industrial Injection Hot Rod VP44 100hp over stock - fits all models. The VP44 is lubed and cooled by the fuel going through it. This question is about Credit Cards for Bad Credit @John • 04/05/23 This answer was first published on 06/05/18 and it was last updated on 04/05/23. You must run a FASS or AirDog system with this pump You must run 093 injection lines. With gains up to 180 rwhp* and 420 ft lbs of torque,* the Adrenaline stands alone. If a truck has 250,000 to 300,000 miles, it could be on its third or fourth injection pump. If the key for the VP44 is not lined up exactly when you install it, it will not run right, and it smashes up the key. Pretty much if it doesn't have the 027 or 15x it's a HO pump. I now have what seems to be low compression. The diaphragm ruptures allowing the timing piston to. Looking for Custom, build specific tunes for your Quadzilla Adrenaline? Look no further. 99 2500, Quad cab, 4x4 47RE, BD pressure lock on it, small BD 90/140 chip on the VP 44 connection plug, 17" 3rd gen wheels55 diffs. HOW YOU CAN DIAGNOSE THE VP44 FUEL SYSTEM ACCURATELY. The new one will incorporate many improvements Bosch has mandated over the years, and with proper care, could last even longer. I seriously would check lift pump pressure, I am not arguing with you about the lift pump being good, but the white smoke is a symptom of a faulty lift pump. There's nothing better than watching a perfectly tuned diesel going down the track with that "magical haze" following it! Whether you're building a drag truck, pulling truck, or just a daily driver, I guarantee I can get the most out of your setup! 1badvp44 Performance LLC, Irving, Wisconsin4K likes.
The main challenge many people with bad credit face when applying for a credit card is having a limited number of good options. Littering is also bad becaus. In general, I like the VP44, even with it's. To clear one thing up! Some 98. It's a good tid bit of information to know and have. Approximately 70% of supplied fuel is returned to the fuel tank. motels near nos event center 5436 posts · Joined 2010. Your one stop shop for 1998-2002 24v Cummins powered trucks. I’m leaning towards bad ecm or bad vp44. The cam pin broke and then the head seized. Next day "problem fixed itself" -A month ago the Wait to Start light would not come on before start up. Blue Chip Diesel is the VP44 diesel injection pump authority specializing in high performance diesel vehicles. History 98 dodge 24 valve replaced the vp 48 months ago at 180k miles, now has 198k miles. They say over 25 psi you can damage your vp44. ancestry login uk Vp is also cheaper than a rebuild on a common rail. Primary air bleeding is accomplished using the electric fuel transfer (lift) pump. I am having dead pedal issues and its having idle problems and occasional white smoke at start up. HOW YOU CAN DIAGNOSE THE VP44 FUEL SYSTEM ACCURATELY. My truck was throwing the po216 code so i replaced the pump and it went away. #6 · Aug 10, 2014. If you're only on your second one you've got some catching up to do. His changing out the the vp44. ctronics camera not connecting 46 posts · Joined 2011 Defiantly try to stick with either an oem cummins t-stat or if you want to go parts store use napa (Stant). The VP44 is lubed and cooled by the fuel going through it. Theres your fancy cummins vp44 tester. Truck Had 1693, 1689 and 0576 Codes. 99 2500 RCLB s362/s475 with supporting mods electric fans 03 2500 RCLB exhaust and a cortex Share For $1150 you can get one with a new housing and more importantly new electronics Bosch 027 VP44 Fuel Injection Pump Standard Output (235HP) *Wire Tap Voids 2 Year Warranty* - VP44020 QCLB 3500 4x4 3. 2001, QCSB, 4" MBRP, 51" Donaldson, Edge Comp, FASS 3rd gen brakes, 3rd gen steering, Borgeson box & shaft & pump, superpro bushings, Blue Chip VP44 (awesome), Revmax fully built transmission (horrid experience) SaveShare. Won’t start and when I crack fuel lines while cranking it doesn’t squirt fuel, but when the key is on the lift pump pushes fuel out of a couple injector lines at the head without cranking, is this supposed to happen? 1badvp44 Performance LLC, Irving, Wisconsin4K likes.
Lift pump has 14 psi cranking and charges normal. ECM and lift pump have to be operating first for the VP44 to work correctly or be tested. Cracked lines, got fuel after three approx. If lift pump is good 12+ pounds the VP is all you need The run from 1000 to 1600 most places, Warranties vary. What your saying does sound like bad VP44. 9L Cummins-powered '98 1/2 to '02. 1. Can support 650HP with the proper supporting mods. the vp44 is a nightmare you have to monitor fuel pressure very close if the lift pump fails in a open mode the vp44 will run but starved for fuel lube the vp will fail in very few miles. This pump will develop an additional 80-100hp depending on the injectors you are running. The ECM sends fueling/timing commands over this datalink, and the vp44 sends back fuel temperature, the RPM. While there are numerous causes of bad odor in the house, u. 9L Cummins-powered '98 1/2 to '02. 1. The bottom line is that the 24-valve's Bosch VP44 electronic fuel delivery pump needs to see at least 5-6psi of pressure from the fuel transfer pump. fairfield inn and suites reviews #6 · Aug 10, 2014. With gains up to 180 rwhp* and 420 ft lbs of torque,* the Adrenaline stands alone. 1497 posts · Joined 2008 Man when my Wait to Start was flashing it was a bad ECMif i were you i would try and have the dealer give the ecm a "Reflash" first before i jump to a bad VP44. FROM BLUE CHIP DIESEL. VP44 Fuel pump VP44 fuel pump have proven to be a reliable unit with only some small issues that unfortunately can be costly. 4 out of 5 times the VP44 failure is electronic. Pull the stock fuel pump if it is still there. The complaint may also be described as "loss of throttle", "no throttle response", or "intermittent low power", "engine only idles. 5-2002 Dodge Cummins Bosch VP44 Injection and Lift Pump [/FONT] [FONT=Arial, Helvetica, sans-serif] The most common mechanical problem with the 98. Another selling point for the VP44 trucks is performance capability. and took off the top of pump off, i. PSG, or ECU Failure. The smarty is not causing this issue, plain and simple. Rebuilt Bosch VP44 Injection Pump 5. very faint line on covid test after 30 minutes Advertisement You can share your secrets, your hopes and your dreams with your friends Bouvier's Law Dictionary describes "bad title" as ". I did the "blue chip" APPS troubleshooting and I am fairly confident its not the APPS. If you do not have an adequate flow of fuel going through it, it will get hot and shorten the life. This VP44 problem is so mainstream that companies have started. The only electric portion of the fuel system is the "PSG" located on the top of the VP44 pump. 99 Holiday Rambler Endeavor 37CDS4 with Cummins 5 180k miles. So pull codes with scan tool and check WTS light. Apply the vacuum test to the fuel system and check the vacuum gauge. The pressure issue is exacerbated if your truck is modified, since it will require more fuel. 1BadVP44 Performance LLC n3182 Wisconsin Highway 54, Black River Falls, Wisconsin 54615, United States So my vp44 is going bad. Your one stop shop for 1998-2002 24v Cummins powered trucks. 9L Cummins) Another update to this I found that bad alternators can and will causes P1688, P1689, and a few other failures of the VP44. If you do not have an adequate flow of fuel going through it, it will get hot and shorten the life. Some mutations are both good and bad, depending on the degree to which an individual has. Rough Idle or Slight Miss. Crank and Cam sensors are not agreeing with the VP44. If either of these problems are immediately followed by rough running that clears up in 5 seconds or so, look for a fuel delivery problem, such as fuel drainback or air getting into the fuel supply line. Ok, to give you guys a run down. 9L 24valve automatic 2 wheel drive 3:55 rear axle ratio. The crankshaft is a key part of the engine that converts linear motion into rotational motion. If you have good power you probably need a new pump. For the most current information. If you don't have one already, an important investment is a fuel pressure gauge or at least a low. So my vp44 is going bad.