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New Middletown, OH
silverados,colorados,camaros,luminas anything chevy cause ford sucks/allways has allways will.
1.Press and release SETUP to display “OIL LIFE XXX% HOLD RESET = NEW”. Picture below. 2.. 3.Press and hold RESET for two seconds and release. Oil life is set to 100% and “OIL LIFE SET TO 100%” is displayed. Picture below. 4.. 5.Note: To change oil life 100% miles value from 7,500 miles (12,000 km) or 12 months to another value, proceed to Step 4. 6.Once “OIL LIFE SET TO XXX%” is displayed, release and press RESET to change the Oil Life Start Value. Each release and press will reduce the value by 10%. 7.Note: Oil life start value of 100% equals 7,500 miles (12,000 km) or 12 months. For example, setting oil life start value to 60% sets the oil life start value to 4,500 miles (7,200 km) and 219 days.
the manufacturer has no recommended specific maintenance interval on 1994 and later models for your engine but 100,000 miles since last change is near the end for all timing belts in my experience.you may just need the egr passages cleaned or valve lash adjusted.tuff to diagnose online however but good luck.
like you stated.bent valve(s) possible hole in piston head but only if its a dohc engine.if its a sohc engine you'll be ok as the sohc is freewheeling.the dohc is interference.
check out www.bbbind.com for wiring schematics on your vehicle.
place a piece of carpet or a tire between your front bumper and a wall and let it idle in drive for 20 minutes so the pcm and keep alive memory chip(kam)can relearn the idle.
its on the transmission.look on the drivers side front axle.remove the airbox and look for a two wire connector.
the fill hole will be on the transfer case itself.you'll see two pipe plugs.one above each other.unthread the top one and just fill it with the proper fluid till it runs over and your full.the bottom plug is for draining.
Put the Grand Cherokee's ignition key into the ignition and turn it to "Run." Don't start the engine. 2 Locate the "Step" button on the Grand Cherokee's instrument panel and press it. Press it again until it says "Miles to Service." 3 Press in and hold the button for about five seconds. It should read "Reset." This will turn off the service light on the display. Read more: How to Reset a Service Light on a 2006 Jeep Grand Cherokee Laredo | eHow.com http://www.ehow.com/how_7156733_reset-jeep-grand-cherokee-laredo.html#ixzz2CLhi9EX6
an independant shop can do that repair no problem.very labor intensive tho so look to spend about $1000.00 give or take a few for your area.thats an auto md price which is $200 cheaper then a dealer would charge but you will get the same quality parts in the process.that price includes the water pump as well cause if its 20 years old,let them change it.my book lists the 4.0 lexus v8 engine as a non interference engine so no damage will be done to the engine if the timing belt breaks.good luck.