Changed out crank pos. sensor, (CPS). Jack up front, 27mm torx, disconnect wire, straightforward. I would now say that @ 100k US mileage, just change it? I would. It was lightly corroded, looks vulnerable to water, dirt, etc. Bonus: MPGS are up by 2. Performance is insane, and they made a blower version? I am now exceedingly delighted. Talking xj here, know what I mean? Quite a ride, cosmetics are due for care, will have some tea now.

 

do you have a part number?

 

Rockauto, I bought their last Beck Arnley part. Airtex Welles #5s1754 is available, will work. Point is, this part can go, causing trouble aplenty.

 

Were you getting any error codes?

 

None. Old part didnt look too bad. If you know the xj8 350, you know that its a bad boy in sheeps attire.

 

I have the XJR. I will be under it next week so may as well replace this part while I am at it. Cheap enough.

 

What were the symptoms?

 

hard starting x350, 2004.2004 xj8 exhibits good cranking but occasionally very long cranking times. Low outside temps a partial factor. Land Rovers also can exhibit this problem, did not test sensor as it is underneath vehicle, once vehicle supported, one torx bolt (27) holds it. Now everytime car is cranked starts right up, warmup is stronger also. Very, very relieved, car now reliable, my wife can take it to the gym, shopping, etc., without fail. Seen these as low as $13 US, @ Rock Auto, cheap shipping rates.

 

Rom

Did it ever throw a code?

Suggest you clean grnd studs behind RH headlight as well (esp bottom one)

john

 

had some unexpected starting trouble today (arrrg!) Will look it those grounds for sure.