One problem related to oil pump has been reported for the 1997 Ford F-150. The most recently reported issues are listed below.
Started the motor in the morning to go to work, knocking noise from either back of motor or front of transmission. Took vehicle to dealer where I purchased it from. Was told by technician that he also heard nkocking noise. Technician put stethoscope on motor says oil pump might be bad. His sugesstion on the work order was to pull the oil pan and inspect bearings. This was not performed due to the fact that I was never informed of there recomendation. Technicians final recomendation was for me to purchase a brand new motor from the dealer and allow them to put it in for a low low price of $3000. 00 out the door. This seems to me to be very deceitful due to the fact that not hardly anything was done to find the source of the knock but yet there final decision is for me to pay $3000. 00 for a new motor and installation. When they do not even know if this is the problem. Cost me $35. 00 for there deceitful recomendation. I have been searching the internet for other 1997 Ford F-150 motor problems that include knocking noises and they are every where on the web. All motor problems with the same symptoms as mine are all low mileage motors. Mine only has 67951 miles on it. I have religously maintained all aspects of my vehicle. Ford sells low qaulity products and there dealers are deceitful!.