I have a Lincoln 1995 towncar and i want to kno if the crank sensor code shows up when its 100% not working r when its barley getting bad cus sometimes it just cranks but then it turns on and it didn'

Asked by Jun 06, 2014 at 02:13 PM about the 1995 Lincoln Town Car Signature

Question type: Maintenance & Repair

The crank sensor code didn't show up
but it still cranks like in 5 10 min it
turns on could it be that cus is not
100% bad that wy it dont show on the
codes

1 Answer

26,615

I'm willing to bet that your Crank Sensor is fine and your fuel pump is failing. Codes are only set by the PCM when the system has a reading outside of normal parameters. The crank sensor itself is nothing more than a magnet that generates an AC signal for the PCM to read. The 36 -1 toothed wheel on the Harmonic balancer is what it reads. Hook up a fuel pressure gauge (an actual gauge) and read the pressure as you crank the engine and as it runs. See how fast the pressure falls off when it's off. If you were actually cranking for 5 to 10 minutes, you would have fried the started and have a very dead battery by now. If you are cranking the engine for 30 seconds or more, there's a problem. All-in-all: if you really want to see what the Crank sensor is doing, either hook up a professional scan tool and watch the PIDS for the Crank Sensor OR hook up an Oscilloscope and watch the actual wave pattern.

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