Question about 1998 Jeep Wrangler
Hello there, I drive a 98 Jeep tj and on may long I had a dash fire and had to replace all the wiring harness. Since then I have had problems. Quite frequently I loose all my motor power and if i rev it up it spuuters and pops and the air box makes a big pop and shakes. Now I get onto the highway and i can't get out of third gear. There is no power at all. It is only a 4 cyl so there isn't much power at the best of times. But this is crazy. Please ask me anything you need, I need help...
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Posted on Jan 02, 2017
Something out-of-balance somewhere. Start with the tires, check the wheels, then have the driveshaft balance checked. Do any off-roading?
Posted on Jul 29, 2008
This code is a catalyst efficiency code. The catalytic converter is most likely the problem, but it could still be caused by a defective oxygen sensor. The easiest way I know to check for this code is with a scan tool that is capable of reading live data stream. You need to look at the upstream and downstream oxygen sensors, and see if they are mirroring each other. In other words, if the upstream (the one before the catalytic converter) is reading .700, and the downstream ( the one behind the catalytic converter) is reading .700, or anywhere near that, then you have a problem. The numbers are just examples. The upstream should constantly swith from high to low voltage. If the downstream is identical, or even remotely close to having the same reading as the upstream, then you most likely have a defective catalytic converter. This does correspond to what happened a couple of weeks back. A misfire will take out a catalytic converter if not repaired quickly. Also, if you had a converter that was marginal, and was close to failure, then that misfire may have been just what it needed to fail.
Posted on Nov 10, 2008
Lifters on your engine are non-adjustable. If noise is not loud or is intermittent, sometimes just changing oil and using an additive like marvel oil will clean it up.If noise persists, check pivot contact points on "bridge" that connects each pair of rocker arms together for wear.Replace if worn. disable the ignition system and have someone crank engine over. Observe that all rockers are going up and down the same distance. The ones to check are the ones that are not. If all is ok there, you must go deeper into engine and check lifters for end wear. If you find wear, lifter and camshaft must be replaced Sometimes if the ends are still in good condition, the lifter itself may have an internal problem.If that is the case, replace the lifter.
Before you begin, check oil pressure. A pressure of 15lbs or less is not acceptable.(warmed up, at idle) Pressure must be substantially higher both cold and hot. I recommend at least 30psi at idle hot, 40psi while driving. Lower pressures indicate serious wear on internal bearing surfaces. Replacing the oil pump may temporarily hide this problem but will not cure it!!!
Posted on Dec 31, 2008
I had the exact same problem on my 04 GC. I put some Techron Concentrate Plus Fuel System Cleaner in from Wal-Mart and it seemed to fix the problems right away. Let me know.
Posted on Jun 01, 2009
This problem is know as the death wobble. There is no one answer that will fix it. This is a well known problem among jeepers. Do a google search on death wobble and you will find a lot of help, but like I said there is no single answer. If your jeep is lifted, you need to find a really good alignment shop that has experience with lifted jeeps.
Posted on Jul 20, 2009
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