Question about Lincoln Cars & Trucks
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Posted on Jan 02, 2017
This sounds like a fuel issue to me. If I am not mistaken, this engine has two injectors running on a separate fuses. Remove the air cleaner assembly, and make sure both are firing while engine is running. If so, then check the fuel pressure. If you have a fuel pressure gauge, connect it to the fuel rail, and start it up. Remove the vacuum line from the fuel pressure regulator to see where it is set. You should have at least 36lbs of fuel pressure. If the pressure is too low, check the fuel filter. It may be clogged, or you might have a weak fuel pump.
Also you changed the throttle position sensor, you will need to make sure it is set properly.
hope this helps,
Posted on Mar 24, 2009
my 89 cutlass did the same thing....She would bog down ( when the service engine light came on)....Light would go off and she would run fine...Shop replaced fuel fiter and KNOCK SENSOR, runs great now, the service engine light stays off too. Ran a can of MG injector cleaner thru too.
Posted on Oct 15, 2009
The Catalytic Converter is one possibility, but not likely. If when the truck bogs down, and stalls out, this could be more related to a fuel pump issue. If on your truck the fuel pump is located inside of the fuel tank, then once the pump heats up, this would happen. Acting as though it's something electrical, but it's really not.
Posted on Sep 28, 2011
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