Compression test
#3
Generally you are allowed a 10% variance between cylinders. The absolute numbers are not as important because the conditions of the test and the engine vary so much.
Yours are more than that but do you have any problems?
If worried you can redo the test and you should follow some guidelines when doing that.
Make sure the engine is warm before you do the test.
If still too much variance put a bit of oil in each cylinder and run the test again. Very often a bit of oil will help with the sealing and you will have a much better test.
.
.
.
Yours are more than that but do you have any problems?
If worried you can redo the test and you should follow some guidelines when doing that.
Make sure the engine is warm before you do the test.
If still too much variance put a bit of oil in each cylinder and run the test again. Very often a bit of oil will help with the sealing and you will have a much better test.
.
.
.
#9
#10
#12
Or simply replace your battery! Oh, wait a minute. Is it too soon?
https://www.jaguarforums.com/forum/s...7/#post2599165
https://www.jaguarforums.com/forum/s...7/#post2599165
#15
#16
The following users liked this post:
S-Type Owner (01-01-2023)
#18
#19
I would be cautious doing multiple repairs all at once. If something goes wrong, it can be challenging to determine the cause of the problem. If the intake comes off to provide easier access to the CKP, I certainly understand freshening the plugs and coil-packs, but you might want to do the injectors as a separate operation.
Also, in terms of coil packs, please use original or OEM grade units (Denso, NGK, Delphi, etc.). The forums are littered with threads of people having bad experiences with economy, no-name coils from eBay, etc...
Also, in terms of coil packs, please use original or OEM grade units (Denso, NGK, Delphi, etc.). The forums are littered with threads of people having bad experiences with economy, no-name coils from eBay, etc...
The following users liked this post:
kr98664 (01-06-2023)
#20
Update!
So I did do multiple things, since I had the intake off and I knew the nut setter in lower intake was stripped. I’m looking to get this vehicle on the road I’m not a mechanic in a garage where I need to tell the customer what was wrong, I just want a nice running vehicle, don’t care how I get there.
anyway- replaced the crank position sensor, plugs, coil packs, left lower intake ( new gaskets both sides) new valve cover gaskets, plugs. And injectors.
car runs a lot better but I may still have a miss in cylinder 1 and on start up. Tranny code still here and it’s noticeable.
goes to the dealer Tuesday as 2 shops couldn’t help me.
that’s where I am now. Will keep you posted.
thanks for the help!!
anyway- replaced the crank position sensor, plugs, coil packs, left lower intake ( new gaskets both sides) new valve cover gaskets, plugs. And injectors.
car runs a lot better but I may still have a miss in cylinder 1 and on start up. Tranny code still here and it’s noticeable.
goes to the dealer Tuesday as 2 shops couldn’t help me.
that’s where I am now. Will keep you posted.
thanks for the help!!