Some vehicles with the updated in-tank supply pump won’t maintain a positive pressure during a test drive. The problem with their volume test with an unrestricted flow is their specifications for volume aren’t high enough. According to Chrysler, pressure doesn’t matter, only volume. 4psi at the inlet to the injection pump with a clean fuel filter allows for a pressure drop across the fuel filter when it is dirty. Failure to maintain a pressurized flow of un-aerated fuel will cause injection pump damage. The supply pump should maintain at least 4psi at the inlet to t he injection pump on a W.O.T. There are cases where a P0216 code (pump timing failure – advance operation) will be stored in the ECM in conjunction with the complaint which makes diagnostics somewhat easier, but it is still important to do thorough diagnostics.įUEL SUPPLY PUMP PRESSURE: The supply pump is critical for the longevity of the VP44 injection pum p. In order to properly diagnose this complaint all of the other possibilities must be eliminated because there are often no codes stored in the ECM in conjunction with the complaint. Another cause could be from faulty lead free soldered connections that fail over time in the pump PSG. This causes the advance piston to stick in the advance housing bore due to cavitation damage. The problem will most likely be an internal VP44 fault caused by low or no fuel supply pump pressure. The others are as follows: faulty throttle position sensor (APPS), defective MAP sensor (not sending a boost signal to the ECM for reference), a defective aftermarket performance box that ties in with the MAP and/or APPS sensor, OR least commonly a faulty ECM. There a few causes for this complaint but the vast majority are internal VP44 failures. In our experience it is often when the engine is cold, and the customer complains of losing throttle response when pulling out into traffic. The complaint may also be described as “loss of throttle”, “no throttle response”, or “intermittent low power”, “engine only idles” or “poor throttle response”. Being more descriptive about the specific complaint will improve diagnostics. If you receive a refund, the cost of return shipping will be deducted from your refund.DEAD PEDAL: This is the most common of all complaints on the 1998.5-2002 Dodge Cummins with the Bosch VP44 injection pump.You will be responsible for paying your own shipping costs for returning your item.The refund period may vary depending on your card issuer's policies. You will receive the refund within 7-10 working days.If your return is approved, we will initiate a refund to your Bank Cards, Mobile Finance Service or through In-store Credits.We will immediately notify you on the status of your refund after inspecting the item. Once we receive your item, we will inspect it and notify you that we have received your returned item.Otherwise, there will be no option for any refund. And the purchased product must be in sealed/wrapped/intact condition (as delivered) to be eligible for a refund. Refunds are made only when the request is made within 3 calendar days of the purchase.If any problem found within 7 days, customer won't have to pay any delivery fee.Warranty will not be provided if anything is missing ***Customers must provide the box and all the accessories given with the product while claiming warranty. While claiming warranty, the customer has to pay the pickup charge (Inside Dhaka 60 taka, Outside Dhaka 100 taka) and the delivery charge after warranty processing (Inside Dhaka 60 taka, Outside Dhaka 100 taka).Only applicable in case of a manufacturing defect, must notify within 7 Days.
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