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Re: 98 Grand C jeep 4litre crankshaft end play
Usually this can be done but I think that if you have wear on thrust faces, there is likely wear on support faces as well, Once you have the pan off, plastigage both rod and main bearings. if out of specs, you really should change all of them!! Make sure you torque everything properly and avoid getting oil on backs of bearings when installing... can lead to spun bearing. good luck
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Remove battery. Remove the battery tray. Disconnect the speed control vacuum harness from servo. Remove the speed control servo and bracket and reposition. Disconnect the electrical connector. Disconnect the electrical connector from crankshaft sensor. Remove the mounting bolt. Remove sensor
CRANKSHAFT POSITION SENSOR LOCATION FOR 4.0L ENGINE IS ON TRANSMISSION BELLHOUSING AT THE LEFT REAR OF THE ENGINE. FOR 5.2L ENGINE CRANKSHAFT SENSOR LOCATED ENGINE BLOCK BEHIND THE RIGHT CYLINDER HEAD.
yes thats what i thought its the crankshaft sensor located on driver side top of trans bellhousing make sure if you replace it hold it down while you tighten the bolt it has a few thousands of an inch of adjustment and it makes a difference . price it from an autoparts store they are a lot cheaper than a dealer. this will help
i would change the crank sensor it gives random misfires make sure you hold it down when installing it and tightening the bolt it has a few thousands of an inch of adjustment and it matters . 38.00 from an auto parts store driver side top of trans bellhousing
Before servicing the vehicle, refer to the precautions in the beginning of this section.
Remove or disconnect the following:
Negative battery cable
Accessory drive belt
Cooling fan and shroud
Front crankshaft seal
Rotate the crankshaft so that the timing marks are aligned.
Fig. 1: Timing chain alignment marks — 2.5L and 4.0L engines
Remove the timing chain and sprockets.
For 2.5L engines, turn the timing chain tensioner lever to the unlock (down) position. Pull the tensioner block toward the tensioner lever to compress the spring. Hold the block and turn the tensioner lever to the lock (up) position.
Fig. 2: Timing chain tensioner — 2.5L engines
Install the timing chain and sprockets with the timing marks aligned. Tighten the camshaft sprocket bolt to 80 ft. lbs. (108 Nm) for 2.5L engines or to 50 ft. lbs. (68 Nm) for 4.0L engines.
For 2.5L engines, release the timing chain tensioner.
Install or connect the following:
New front crankshaft seal to the front cover
Front cover, using a new gasket
Timing Case Cover Alignment and Seal Installation Tool 6139 in the crankshaft opening to center the front cover
Fig. 3: Timing Case Cover Alignment and Seal Installation Tool 6139 — 2.5L and 4.0L engines
Tighten the front cover bolts as follows:
Step 1: Cover-to-block 1⁄4 inch bolts to 60 inch lbs. (7 Nm)
Step 2: Cover-to-block 5⁄16 inch bolts to 16 ft. lbs. (22 Nm)
Step 3: Oil pan-to-cover 1⁄4 inch bolts to 85 inch lbs. (9.5 Nm)
Step 4: Oil pan-to-cover 5⁄16 inch bolts to 11 ft. lbs. (15 Nm)
Install or connect the following:
Crankshaft damper. Tighten the bolt to 80 ft. lbs. (108 Nm).
This is what I found on the 98 Regency instructions:
REMOVAL & INSTALLATION
Disconnect the negative battery cable.
Remove the belts from the crankshaft pulley.
Remove the crankshaft damper attaching bolt.
Attach a suitable puller to the damper and remove the damper from the crankshaft.
NOTE: On certain models, removal of the cooling fan, fan shroud or radiator may be necessary for clearance. WARNING DO NOT pry on the damper assembly to remove it from the vehicle or component damage will result. Remove the damper using a puller only.
Installation is the reverse of removal. Torque the damper bolt to specification.
Fig. 1: One example of a crankshaft damper puller tool
Fig. 2: Removing the crankshaft damper bolt
Fig. 3: Do not attempt to pry on the damper to remove it from the crankshaft, use a puller only
Fig. 4: Removing the damper from the crankshaft
Fig. 5: When installing the damper, thread the bolt by hand first to prevent cross-threading
there is an up dated sensor that you can purchase it fits on the pas side rear of engine at the trans bell housing near the top 2 13m wrench size bolts hold it on wiring harnes goes up and over motor then plugs into harness its a tight fit to get to on some engines