Question about Cars & Trucks
Fuel pressure drops when put in gear and it stalls. Did NOT do this until rear axle was changed. Fuel pump has been changed, still has problem. Electrical grounds have been trouble shooted also. Please help. Mechanic has had it for two weeks and can't find the problem $$$
You are equipt with a CSFI injection system,most tech call it the spider injection system,these injector deliver fuel to the popet injector by a tube a plastic tube ,if this tube rupture there is no way for you to see it ,and plus if the fuel pressure is unstable you have a pressure regulator failure,not the fuel pump,dropping the axle has nothing to do with your problem or a fuel pump ground, it get its ground from the ECM, if it was a direct ground the relay would burn, If you want to solve this problem access the fuel pressure regulator and you will see leakage and inspect the injector tube,also check the motor oil and see if it is fuel contaminated.
Posted on Nov 12, 2012
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Posted on Jan 02, 2017
I DONT KNOW IF U ARE A MECHANIC BUT THE BEST WAY TO SOLVE THIS PROBLEM IS GETTING A WIRING SCHEMATIC. IT WILL HELP U SEE IF ANYTHING ELSE IS WIRED INTO THE CIRCUIT BESIDES THE FUEL PUMP
Posted on Jul 27, 2010
I accidentally rotated the spider gears out when putting a new axle seal on a 04' F-150. I didn't have the tool to compress the clutch packs so I removed the differential carrier and took it and the spider gears down to the local Ford dealership and they put them back in for $20.
Posted on Aug 01, 2010
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