Question about 1991 Mercury Sable

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I have an 89 sable with a 3.0, it was running perfect when I came home the next morning it will not start, it turns over but only sputters and you have to keep pumping the gas to even get that, as soon as you let off the gas it dies, any ideas ?

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Your engine problem sounds like it is fuel related. I have posted a test procedure to verify the engines fuel pressure. It is not uncommon for a fuel pump to suddenly fail, and if it does, it would cause the condition you are describing.

TESTING Connect a suitable fuel pressure tester to the fuel pump outlet.

  1. Turn the ignition key to the RUN position to operate the fuel pump.
  2. The fuel pressure should be 35-45 psi (241-310 kPa) for the 3.0L and 3.8L engines. For the 2.5L engine, the fuel pressure should be 45-60 psi (310-414 kPa).
How many miles are on this vehicle and can you tell me the exact size engine?

Posted on Aug 28, 2010

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