Question about 2001 Jeep Grand Cherokee

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Replaced the crank position sensor. Car runs worse. Threw a check engine light. Hardly runs and drives. Does the crank sensor and cam sensor need to be timed or something? If so how do u do it?

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This is not a "fix" but just some thoughts, so don't "rate it".... First, I'm assuming that you tested the crank sensor before replacing it as per chilton or haynes manual? You checked the sensor in the distributor? Changed it? Was there any side play in the shaft?
The only "timing" that is needed is that the distributor be installed correctly. If not the crankshaft and cam are out of phase not mechanically, but the computer will read it that way. Which brings up another point...the timing chain is the link between the two and if excessively worn that can cause an out of phase condition as well, especially because you can't turn the distributor to compensate.
Excessive wear on the crank thrust bearing can cause a problem but that's rare. Same with the flywheel itself. If you had a starter problem and any teeth are broken off that can cause problems.
Of course, the sensor may be defective or the incorrect one...always double check that.
The code that's there now is for the sensor right?

Posted on Oct 14, 2010

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Posted on Jan 02, 2017

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