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1-16 of 17 Results
  1. YJ Technical Discussion
    I have an 89 Jeep Wrangler 2.5L 5-sp manual. Replaced the alternator with a 78 amp and now I don't get proper volts as measured at the dash gauge. It went from steady at 14 with the old one to more like 8-9 with the new. Things like wipers and blinkers are now slooooow. The old Delco-Remy alt...
  2. YJ Technical Discussion
    Hello all! I've recently bought a 1994 Jeep Wrangler YJ with a couple of upgrades. It has a 4 inch lift on 33 inch tires. It has a vacuum delete and has the original posi lock instead. The problems I'm having right now with the jeep is the voltage reading low (12 ish volts). It has a new...
  3. TJ Technical Discussion
    Hey everyone, I am new to this forum, but thought I would try asking for advice. Today I went for a short drive to Walmart. Car started right up, but on the highway threw a check engine light. When I pulled into the parking lot, I viewed the codes and got the following: P2074 - vac leak...
  4. TJ Technical Discussion
    I've recently been having an issue with the battery voltage on my Jeep Wrangler 2004 TJ Unlimited. The car would start with 12v visible on the dash gauge, and the "check gauges" light would come on. After replacing the alternator, testing it, testing the battery, and charging the battery back...
  5. TJ Technical Discussion
    Hey Guys, Over the past month, have had an issue with my TJ not going over 12v and the check gauges light coming on. Jeep almost died on the way home one night, going all the way down to 9v. I got it tested at the store on that drive back, and they said the alternator was bad. I installed a...
  6. JK Technical Discussion
    Does anybody know what the resistance and voltage specs are for the coil pack that comes with the 3.8L engine models? (2007-2011)
  7. TJ Technical Discussion
    2005 Jeep LJ Wrangler Unlimited 4.0, Auto I will try to be as informative and brief as possible. I bought the jeep back in December. It had 4 KC lights mounted, spliced into the ignition wire, but NOT connected on the battery. THE PROBLEM - All of my lights (Headlights, Dome lights, Dash lights...
  8. YJ Technical Discussion
    What the heck? I start it, drops to about 11v, fires right up. Skyrockets to almost 16v and holds steady at idle about 15.5v. I talked to the auto parts store, we pulled out a new alternator and they are externally regulated. Am I right to say they are regulated in the computer? Its also...
  9. TJ Technical Discussion
    98 wrangler, 4.0-Been intermittently getting a check gauges warning light for a few months and when this happens the voltage gauge in the dash shows zero. Generally, it stays like this until the next time i start the Jeep. Then all appear well. The voltage indicator typically is just below 14...
  10. TJ General Discussion
    Good evening all, I searched the forum to figure out if my dead TJ was a battery problem or a battery + alternator problem and I believe it was just the battery. But if the Wrangler Gods could give me a little confidence in my simple-minded diagnosis I would be grateful. The battery was 5...
  11. YJ Technical Discussion
    This happened for the first time last week. Now when I turn on my turn signals, my radio goes off. Then it comes right back on - even though the turn signals continue to operate. I have not done any electrical work on it in many months, so I don't think I caused this. The voltmeter has always...
  12. YJ General Discussion
    This jeep is almost as old as me! Hello all, this is my first post. I have more questions than answers right now, but that will change in time. I bought myself a 92 4 cylinder standard, had some transmission issues but fixed them, and then had a perfectly running jeep! The only problem is now...
  13. YJ Technical Discussion
    Two days ago the lights go dim, headlights, instruments lights, check engine light comes on, but I make it to work. I can't take the vehicle to get anything tested, but I am able to get an alternator and manage to get it swapped out. It seems to work, but on the way home the next day, the check...
  14. YJ General Discussion
    First off, Id like to thank you for all the info, help, and laughs yall give through this forum, and I'm happy to be a part of it. Unfortunately, I have seen plenty of TJ Alternator posts but, after much searching, no sufficient YJ Alternator post... I am currently running: - Stock Alternator...
  15. TJ Technical Discussion
    First off, if im doing this wrong sorry. ok, i have a 99 Wrangler, its getting to the age of little problems here and there. But now the check gauges light comes on the voltometer drops to zero, and i can only make it a few miles before i lose all power. I have pulled the alternator and got it...
  16. TJ Technical Discussion
    I have a 2002 Wrangler Sport. About 6 months ago I developed a problem and it has been in the shop 3 times for the same thing. The problem starts with the cruise control going out. A day or two later the check engine light will come on (Auto Speed Sensor I think it was) about a day after that...
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