How to change a Knock Sensor on a Jaguar AJ27 Engine FAQ
#22
Ant, where did you get your Denso sensors? The W0133-1655837 (used by DavidN) from autopartswarehouse is NLA. Exact ones for XJ8 seem to be $100 and up. The ones for XK8 (longer wire) are somewhat less, but not that much less.
I do wonder how different these sensors are. I found one for a 4.2 L Jag that was really cheap. Also, there is another style which has its own stud to screw into the block, that is also cheaper.
I do wonder how different these sensors are. I found one for a 4.2 L Jag that was really cheap. Also, there is another style which has its own stud to screw into the block, that is also cheaper.
#23
Hi Boomer
I did a little research on the internet this morning, looking for 2006 XJ8 knock sensor.
I found 2 sources here in US and 1 in the UK.
Rock Auto Parts has a Airtex part# 5S5619 that is an alternate/OEM for AJ85676, SU7012 - Price $27.79 plus around $9 shipping.
The other one is on Ebay is also Airtex part buy-it-now priced at $40.42 free shipping:
Airtex 5S5619 Knock Sensor | eBay
British Parts co uk has the original Jaguar part AJ85676 priced at 17.82 British Pounds - total cost 28.52 British Pounds.
KNOCK SENSOR
Jim Lombardi
I did a little research on the internet this morning, looking for 2006 XJ8 knock sensor.
I found 2 sources here in US and 1 in the UK.
Rock Auto Parts has a Airtex part# 5S5619 that is an alternate/OEM for AJ85676, SU7012 - Price $27.79 plus around $9 shipping.
The other one is on Ebay is also Airtex part buy-it-now priced at $40.42 free shipping:
Airtex 5S5619 Knock Sensor | eBay
British Parts co uk has the original Jaguar part AJ85676 priced at 17.82 British Pounds - total cost 28.52 British Pounds.
KNOCK SENSOR
Jim Lombardi
Last edited by jimlombardi; 09-05-2011 at 06:57 AM.
#24
Ant, where did you get your Denso sensors? The W0133-1655837 (used by DavidN) from autopartswarehouse is NLA. Exact ones for XJ8 seem to be $100 and up. The ones for XK8 (longer wire) are somewhat less, but not that much less.
I do wonder how different these sensors are. I found one for a 4.2 L Jag that was really cheap. Also, there is another style which has its own stud to screw into the block, that is also cheaper.
I do wonder how different these sensors are. I found one for a 4.2 L Jag that was really cheap. Also, there is another style which has its own stud to screw into the block, that is also cheaper.
JAGUAR XJ8 S-TYPE SUPER V8 X-TYPE XJR XK8 Knock Sensor | eBay
They list it as OES genuine.
That was the cheapest I could find.
Didn't see those that Jim posted.
Note: The $27.00 one at rock auto is actually $64 or $70 for my car w/out shipping.(and it's the wrong item, not for XJ8 2003)
I paid 60.00 shipped for the denso.
There were lots but every time I indicated XJ8 2003 4.0 the price was high if they even had it.
Last edited by ant17; 09-05-2011 at 07:05 AM.
#25
Hi ant17
The part number that David provided in this DIY writeup was the alternate for Jaguar part# AJ85676. Rock Auto Parts Airtex 5S5619 is also the alternate part number for it.
David it not go by the cross reference you are trying to use.
That is why I used 2006 XJ8 to look it up on Rock Auto Parts catalog.
Jim Lombardi
The part number that David provided in this DIY writeup was the alternate for Jaguar part# AJ85676. Rock Auto Parts Airtex 5S5619 is also the alternate part number for it.
David it not go by the cross reference you are trying to use.
That is why I used 2006 XJ8 to look it up on Rock Auto Parts catalog.
Jim Lombardi
Last edited by jimlombardi; 09-05-2011 at 09:24 AM.
#26
#27
Hi Boomer
Update - the OES knock sensor ant17 bought on Ebay is also for the 4.2 engine - I just look at the compatibility chart in the Ebay Listing.
The Ebay listing for AirTex knock sensor has a compatiable table showing 1997 thru 2002 XK models with 4.0 engines along with all the 4.2 engines.
Airtex 5S5619 Knock Sensor | eBay
The knock sensor that David describes in the DIY and used is also for 4.2 engine. Both knock sensors are made by DENSO to Jaguar specifications.
Forum member luc posted "The AJ85676 is designed for the 4.2 engine ( BTW $27 is the full jaguar list price)."
Jim Lombardi
Update - the OES knock sensor ant17 bought on Ebay is also for the 4.2 engine - I just look at the compatibility chart in the Ebay Listing.
The Ebay listing for AirTex knock sensor has a compatiable table showing 1997 thru 2002 XK models with 4.0 engines along with all the 4.2 engines.
Airtex 5S5619 Knock Sensor | eBay
The knock sensor that David describes in the DIY and used is also for 4.2 engine. Both knock sensors are made by DENSO to Jaguar specifications.
Forum member luc posted "The AJ85676 is designed for the 4.2 engine ( BTW $27 is the full jaguar list price)."
Jim Lombardi
Last edited by jimlombardi; 09-05-2011 at 12:46 PM.
#28
#31
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gocallahan (12-16-2011)
#32
#33
I'm about 80 or 90% sure it will work. But see if it fits "hand tight" before torquing it down. Also be sure that there is clearance above the sensor - doesn't the plastic cover come down close? I'm not near any diagrams at the moment, so not sure. But I would try this before buying another one.
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gocallahan (12-17-2011)
#34
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gocallahan (12-17-2011)
#35
@ gocallahan The 98' is fitted with an AJ26 engine, have you got to the knock sensor on your engine to replace it yet?
Have a look here at the knock sensors picture of a similar engine,
https://www.jaguarforums.com/forum/x...-thread-61113/
Post #5 has pictures of both the early sensor installed (the one you have) and later type.
Like Boomer says, it will fit, so no worries.
Have a look here at the knock sensors picture of a similar engine,
https://www.jaguarforums.com/forum/x...-thread-61113/
Post #5 has pictures of both the early sensor installed (the one you have) and later type.
Like Boomer says, it will fit, so no worries.
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gocallahan (12-17-2011)
#37
#39
#40
I have had it happen at both Valero and Citgo.
Since I live in Texas there is no consumer protection. The gas station will blame it on the truck company and the truck company will blame it on the refiner and on and on.
They caught one chain here and figured they stole millions so the gave them a fine that was a pitance of what they stole.
It can happen at any station so always be wary if you start getting poor performance or codes about 10 miles after a fill up.
Cheers
Since I live in Texas there is no consumer protection. The gas station will blame it on the truck company and the truck company will blame it on the refiner and on and on.
They caught one chain here and figured they stole millions so the gave them a fine that was a pitance of what they stole.
It can happen at any station so always be wary if you start getting poor performance or codes about 10 miles after a fill up.
Cheers