Top 10 2001 Jaguar XJ8 Questions & Answers

Your car has no transmission dip stick, you will have to have the dealer service the trans, it requires special tools to fill trans.

It's under the intake manifold. To access it you have to remove the manifold and injection rail.

If you check, the replacement the dealer installed in your car was likely a "certa" unit which is another word for a factory rebuild. Therefore a rebuilt transmission will not be anything "new"
If you press the issue, you will likely get Jag to replace yours with another certa unit. You may need to make a bit more "noise" though.
In choosing a private shop to do this work, ask around and see who has a really good reputation."Branded" shops are franchises and as different as dogs and cats when it comes to quality. If you have friends with a similar car, see who they have used. If you use a private repair shop ask who they "job" their trans work out to.
It may take a bit of shopping but you likely will find someone who can do the right job for you!

99 jaguar knock sensor location?

Hello jjames696...The gearbox fault light has come on because the transmission control module (TCM) has received a fault signal from one or both of the two trans. sensors....The Output Shaft Speed (OSS) Sensor and/or Turbine Shaft Speed (TSS) Sensor.The TCM has now defaulted to limp mode...A diagnostic scan needs to be run...An OBD II scanner will retrive a P1722 fault code, the only code in it's library for the ZF5HP24 transmission. The WDS / IDS will pull other codes not found in the standard OBDII library (dealer or good transmission shop)
When was the last time the transmission was serviced? Manual shifting will take it's toll on the fluid quickly.
The transmission is sealed, no dipstick (which i think is a bad idea) You can check the fluid level by removing a plug on the passenger side of the case, you should be able to touch the fluid with your finger. Jaguar fluid is VERY expensive, Mobil 1 synthetic will work and meets ESSO specs.
Personally...i would change fluid every 25-30k.
Hopefully all you have is a bad sensor or a stuck solenoid and no internal componet damage.
Good luck, hope this answers your question...please take time to rate my fixya reply.

check ur air filter and flow to motor

Discoverd this indepth expalaination of process steps involved in the installation of the timing chain from an ASE certified technician. I hope this helps. See the repair manual on the link below.<br /> <br /> Link: <a href="http://www.2carpros.com/forum/2002-jaguar-xj8--gearbox-default-appear-on-dashboard/2000-jaguar-xj8-timing-chain-replacement-vt218070.html">http://www.2carpros.com/forum/2002-jaguar-xj8--gearbox-default-appear-on-dashboard/2000-jaguar-xj8-timing-chain-replacement-vt218070.html</a><br /> <table id="table14" style="BORDER-RIGHT: #000000 1px dashed; BORDER-TOP: #000000 1px dashed; BORDER-LEFT: #000000 1px dashed; BORDER-BOTTOM: #000000 1px dashed" bordercolordark="#000000" width="100%" bordercolorlight="#000000" border="0"> <tbody> <tr> <td style="BORDER-TOP-WIDTH: 1px" width="700"></td></tr> <tr> <td style="BORDER-TOP-WIDTH: 1px" width="700"><span class="name" roundtrip="0" lastvisited="3">By <a name="755408"></a><b roundtrip="0" lastvisited="0">Dave H</b>,<b> </b></span><span class="postdetails" roundtrip="0" lastvisited="0">Certified ASE Technician</span></td></tr> <tr> <td style="BORDER-TOP-WIDTH: 1px" width="100%" roundtrip="0" lastvisited="6"></td></tr> <tr> <td style="BORDER-TOP-WIDTH: 1px" width="700"></td></tr> <tr> <td style="BORDER-LEFT-WIDTH: 1px; BORDER-BOTTOM-WIDTH: 1px; BORDER-RIGHT-WIDTH: 1px"> </td> </tr> <tr> <td colspan="2"> <span class="postbody" roundtrip="0" lastvisited="77">PRIMARY TIMING CHAINS (NON-SUPERCHARGED) <br />NOTE:The 4.0L V8 has no engine timing alignment marks on the crankshaft or camshafts. Engine timing is achieved by installing the Crankshaft Setting Peg (303-531) and Camshaft Locking Tool (303-530). With the crankshaft setting peg in position, ensure the timing flat on each camshaft is in the uppermost position before installing camshaft locking tool. Variable camshaft timing unit may also be referred to as Variable Valve Timing (VVT) unit. <br /><br />NOTE:Special Tools Required: Crankshaft Setting Peg (303-531), Camshaft Locking Tool (303-530), Chain Tensioning Tool (303-532), Primary Chain Wedge (303-533) and Variable Camshaft Timing Oil Control Unit Setting Tool (303-654). See Fig. 232-Fig. 236 . <br /><br />NOTE:"A" bank refers to the right/passenger side of the vehicle and "B" bank refers to left/driver side of the vehicle. <br /><br />NOTE:Each door glass automatically drops 12 mm when the door is opened or when the convertible top is raised or lowered. It is important that windows are lowered before battery is disconnected to allow doors to shut properly. <br /><br />Removal ("A" Bank) <br />Tips Click a link to view tip <br />Tech1Tip: special tool <br /><br /><br />Remove timing cover. See TIMING CHAIN COVER (NON-SUPERCHARGED). <br />Remove the variable camshaft timing oil control solenoid. </span><br /> <span class="postbody" roundtrip="0" lastvisited="77">Remove the variable camshaft timing oil control unit housing retaining bolts and remove the variable camshaft timing oil control unit housing. </span><br /> <span class="postbody" roundtrip="0" lastvisited="77">Remove and discard the variable camshaft timing oil control unit housing "O" rings. <br />Raise and support vehicle. Remove the bolt which secures the Crankshaft Position (CKP) sensor to the flywheel housing. Remove the CKP sensor and allow it to hang free under the engine. Remove the torque converter bolts access grommet from the flywheel housing. </span><br /> <span class="postbody" roundtrip="0" lastvisited="77">Install the crankshaft damper bolt (old one) to the crankshaft, hand-tight only. Rotate crankshaft until the triangular arrow indent on the flywheel is visible through the access hole. See Fig. 144. Confirm that the timing flat on each camshaft is uppermost position. <br />Position the crankshaft so that the Crankshaft Setting Peg (303-531) engages fully into the timing slot. Install and tighten the bolt to secure the crankshaft setting peg. See Fig. 145. Remove the crankshaft damper bolt from the crankshaft and lower the vehicle. <br />Install the Camshaft Locking Tool (303-530) to the "A" bank camshafts, aligning the shafts slightly as necessary. Loosen the bolt that secures the exhaust camshaft sprocket and the bolt that secures the variable camshaft timing oil control unit. See Fig. 146. Remove camshaft locking tool. <br />Remove the primary chain tensioner bolts, primary chain tensioner and tensioner backing plate. See Fig. 147. <br />Remove the primary timing chain tensioner pivot bolt and remove the primary timing chain tensioner blade. See Fig. 148. <br />Remove the bolt which secures the primary timing chain guide. Noting the position of the primary timing chain guide, remove the primary timing chain guide from the upper retaining pin. See Fig. 149. <br />Remove the primary timing chain from the variable camshaft timing oil control unit and from the crankshaft sprocket. Clean and inspect all components. <br />Installation <br />If "B" bank timing chain was removed, see INSTALLATION. If not, go to next step. <br />If previously removed, install the timing chain sprocket to the crankshaft. The teeth of the "A" bank and the "B" bank timing chain sprockets on the crankshaft must be out of phase with each other. If they are in phase after installing, remove the sprocket, turn it on its vertical axis and reinstall sprocket. See Fig. 150. <br />Install the chain tensioning tool to the exhaust camshaft sprocket. Reposition the sprocket (and the variable camshaft timing oil control unit) for the most advantageous position for use of the tool. See Fig. 151. Remove the tool. <br />Install the primary timing chain into position over the crankshaft sprocket and the variable camshaft timing oil control unit. There must be no slack on the drive side of the primary timing chain and the sprockets must not be rotated on the camshafts, or the tensioning tool may not fit. See Fig. 152. <br />Install the primary timing chain tensioner blade to the cylinder block. See Fig. 148. Install the pivot bolt and tighten specification. See TORQUE SPECIFICATIONS. <br />Push the primary timing chain tensioner piston into the tensioner body to provide clearance for installing the primary timing chain. Insert a thin rigid wire through the hole in the end of the tensioner piston to displace the ball from the non-return valve seat. See Fig. 153. With the wire in position, press the piston fully into the tensioner body. Remove the wire. <br />Install the 2 primary timing chain tensioner bolts to the primary timing chain tensioner and locate the tensioner backing-plate on to the 2 bolts. Align and install the primary timing chain tensioner to the cylinder block and to the mating slot on the rear face of the primary timing chain tensioner blade. See Fig. 147. Tighten the primary timing chain tensioner bolts to specification. See TORQUE SPECIFICATIONS. <br />Use a Primary Chain Wedge (303-533), or 2 if needed, between the primary timing chain tensioner and primary timing chain tensioner blade, to take up the slack in the chain for tightening of the variable camshaft timing control unit and exhaust camshaft sprocket. See Fig. 154. <br />Using the chain tensioning tool, apply force to the tool in an counterclockwise direction to tension the chain on its drive side. See Fig. 151. While applying opposing force to the sprocket and chain, tighten the exhaust camshaft sprocket bolt to specification. See TORQUE SPECIFICATIONS. <br />Using the Variable Camshaft Timing Oil Control Unit Setting Tool (303-654), rotate the variable camshaft timing oil control unit fully counterclockwise to the fully retarded position. See Fig. 155. <br />Check that the primary chain wedges are still in place. While applying opposing force to the sprocket and chain using the chain tensioning tool, tighten the variable camshaft timing oil control unit bolt to specification. See TORQUE SPECIFICATIONS. Remove the chain tensioning tool and the primary chain wedges and camshaft locking tool. <br />Raise and support vehicle. Remove crankshaft setting peg. Install the CKP sensor and bolt to the flywheel housing. See Fig. 143. Tighten the CKP sensor bolt to specification. See TORQUE SPECIFICATIONS. Install the access grommet to the housing and lower the vehicle. <br />WARNING:Check that the ring dowels are engaged squarely. Fully locate the assembly as much as possible by hand. Failure to follow this procedure may result in damage to the vehicle. <br /><br />Install NEW "O" rings to the variable camshaft timing oil control unit housing. Lubricate the "O" rings and the bushing. Install the variable camshaft timing oil control unit housing. See Fig. 142. Install the variable camshaft timing oil control unit housing bolts. Tighten to specification. See TORQUE SPECIFICATIONS. <br />Install the variable camshaft timing oil control solenoid. See Fig. 141. Install and tighten the variable camshaft timing oil control solenoid bolt to specification. See TORQUE SPECIFICATIONS. <br />Install the timing chain cover. See TIMING CHAIN COVER (NON-SUPERCHARGED). </span><br /></td></tr></tbody></table>

Heres a wiring diagram for the fuelpump.

42 miles with a jaguar. First I love Jaguars. Youll get to your home by a tow truck. The car is talking to you say its sick.Here is what will happen, The TRAC, ASC, light is on okay the APP will now go to limp home mode what this mean it will default giving limited operations, youll probable just go 30mph, and that is just it. The transmission does not know what gear or how fast its going so it communicates to the powertrain it tell it I dont know what Im doing so it activates the traction control and say keep me safe the traction control say okay Ill get disable, then the transmission control tell the powertrain I could be burning up or slipping. So The APP(acclerator pedal position ) gets involved and say we will just limp on home.Remeber i love juguars so does tow trucks

ABS = Anti-lock Brake System.
TC = Traction Control System (Engine Control Module).
If the ABS lights on the dashboard permanently the ABS system is faulty. You must access the ABS & TC Electronic Control Units (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ABS ECU, in other words reset the ABS system and turn off the warning lamp on dashboard.
I suspect bad brake pedal switch, but you should scan the ABS & TC ECU's.