How do you remove the coil rail to get to the spark plugs
SOURCE: 98 jeep wrangler 4.0 acceleration problem
There are various reasons that this could happen:
How many miles does your vehicle have?
SOURCE: Method for changing Spark Plugs out on '99 Jeep Wrangler TJ 6CYL
Plugs is easy.
I use only Valvoline as it doesn't tend to gum or sludge my engines like Penzoil or Quaker State did.
I assume this is a 4WD since your asking about the gearbox, and it's an automatic.
SOURCE: 2001 jeep cherokee sport 6 cyl 4 wdr cranks want start
If the data link is not talking to the computer check your ground at the computer and at the data link connector to see if the computer is even alive ground pin 3 on DLC with the key off then turn key to the run position if it flashes the check engine codes record them, if no engine light, does the engine light come on when you turn the key on then go off? if not, check fuses if not check power for pin on computer, if it has power you have a bad computer. But TEST THE GROUNDS IT IS THE BIGGEST FAILURE For these rigs or any manufacture. check that you have power also at the DLC too. if not you need a digital ohm meter and a subscription to http:///.www.alldatadiy.com and start reading the campaigns on that vechile for computer and trouble tree for dead DLC and computer. I don't have that subscription or I could tell you more where to look, if you need anymore help let me know. Also if the crank sensor could cause it not to run the fuel pump but so can the cam sensor. You need to find out if the computer gets it's pulse for the pump at the computer if it does then you need to test them both. There are three wires a ground a colored power wire and a wire to go to the computer you can test these sensors with a meter to see if there is a pulse to each. sometimes the fuel pump gets it's signal from the coil pack so it's important to have the subscription, you can do a search for each item and test them as needed and has a wiring diagram.
SOURCE: Changing spark plug wires on 2001 Jeep Grand cherokee
yah direct ignition coil pack does away for the need a a distributer cap and rotor.much higher energy ignition system where the computer tell when to fire.if that helps.not hard to change.as long as you change them one at a time so you don't screw up the order.
SOURCE: 98 jeep wrangler wont start. no spark from coil.
there is only two things left. the crank sensor that is located at the top of the transmission bellhousing or the pick up inside of the dist. it is that black plate that sits between the cap and the dist housing. hope that helps.
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