1998 lifted cherokee xj automatic bla bla bla. U guys know the deal lol. I just got my truck out of the snow adter 3 days. Was driving it fine for like an hour and then it starting to throw codes. Viltage guage dropped to 9 and the truck ad no power at all. I can putthe gas pedal to the floor and it wouldnt go any higher than 2000 rpm. Feels like it is misfiring like crazy. I just gave it a tune up nd oil change less then 300 miles ago. These are the codes.. P1682. P0132. P0302. Any help would be appreciated. Thanks guys!

 

http://lmgtfy.com/?q=jeep+cherokee+odbII+codes

Sorry.. I had to do it..

 

Did google alrede and looked up the codes. I just need responses on how to fix the problem. I kno what they all mean lol. The voltage fixed itself somehow when i shut the truck and atarted it again but idk what to do about the rest nd id like aome ideas on why it randomly started to happen as i was driving.

 

Maybe bad battery or cable issue.At 9 volts ECMs can start doing all kinds of crazy things.Have battery load tested first.

 

Well the battery is fine now. After i shuttye truck and turned it bak on that was fixed. But i dont get y i have no power. It only goes upto 2 thousand rpm and thats it all of a sudden.

 

Damn xj is like a women having pms lmao. I started it up again and now its running fine like nothing ever happened. Im thinking it just needed to dry off after going thru all those deep puddles from the flooded roads. Ill keep everyone posted. Thanks.

 

Very possibly water intrusion. The throttle position hates water and could hold your power band back. But you should also consider freshening your engine grounds. They are the cause of many electrical gremlins.
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Grounds can be the root cause of many electrical gremlins. Refreshing grounds is NEVER a bad idea, and the investment of your time in this procedure is always well worth it!

You can't tell much of anything by looking at ground connections!! You must remove, scrape, clean until shiny the cable/wire ends and whatever they bolt to. Be sure to remove all paint from any ground connections.

Start with the one on the back corner of the head, and where it attaches to the firewall, as it deteriorates over time and is an area that makes it susceptible to damage. Best to replace that woven cable with a #4 or #2 gauge cable. You can attach the one end to the intake manifold if you would like.

Next go over to the engine dipstick tube stud. Remove the nut and clean the wire ends and scrape the block until shiny at the stud. Reattach tightly.

If you are so inclined, add at least a #6 cable from the negative terminal of your battery to one of the bolts on your radiator support.

 

Thankyou for this great info! Once this 2.5 feet of snow melts im deff gonna refresh everything. And if im not mistaken i believe the PO put a #6 onto the radiator. I gotta double check tho. Thanks for your help