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Fuel Sender Question

Discussion in 'Other Rides' started by 87K54WD, May 16, 2002.

  1. 87K54WD

    87K54WD 1/2 ton status

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    Location:
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    I have a 93 Camaro that is barely able to run. It has a new tune-up (wires, plugs, air filter, PCV, fuel filter) with every sensor being replaced (i.e. oxygen, air, coolant ecm, etc.) New fuel pump. Still have very rough idle and major hesitation / bucking. Took it to the dealer, and they said it was the fuel sender assembly. The fuel guage does jump all over the place, but my question is would a faulty fuel sender assembly also cause all the other problems. I know it is a fuel delivery problem because it fails the fuel pressure test when the key is in the "on" position and when it is started. Just not getting enough fuel. I thought it might be the fuel pressure regulator but the dealer said it was the fuel sender assembly. Any ideas or suggestions? Just want to make sure that a faulty fuel sender assembly would cause all these driveability problems before I take the tank down again to replace that instead. As I mentioned before, I just put a new fuel pump in because I thought that was it at first. I could care less about the fuel guage jumping all around, if that is all a new fuel sender assembly is going to fix.
     
  2. 87K54WD

    87K54WD 1/2 ton status

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    Location:
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    Well, in case anyone has something similar down the road, the new fuel sender assembly seemed to do the trick. The Camaro is running good for now. It took me a while before I had free-time to get to fix it, but I finally put in the new assembly and the guage and driveability problems are gone. I was really surprised to find the assembly could cause driveability problems as well as the typical guage problems. I can only assume that since the actual sender part shares the same neg. / black wire as the pump maybe that was dropping the voltage to the pump as well causing low fuel pressure output. The resistance / OHMs on the fuel sender part were all over the place and put my tester to infinity / overload (O.L.) as well. Never could get a steady reading on the old assembly. Maybe this will save someone else an extra pull down of the tank ... this was a PITA for a 4th generation Camaro. By the way, the GM dealer wanted to charge me about $800 to fix it. I saved about $600 by doing it myself and getting the part from a GM parts store online for about $100 less than the dealer would have charged.
     

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