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  1. Engines & Drivetrain
    For the love of God, could someone please highlight to me the probable causes of a misfire; Symptom Primary: 1) Shaking engine on cold start until warm. 2) Gas mileage has dropped some. 3) Cylinder 6 spark plug gets dirty. 4) Would misfire on highway speeds but after a shop opened the whole...
  2. Engines & Drivetrain
    I have owned my 2000 Jeep Grand Cherokee Laredo for five years. First and only Jeep so far. Crankshaft position sensor and throttle position sensor replaced about two years ago. Engine replaced a couple months ago. Fuel pump was replaced last year. Approximately 249,000 miles on Jeep. 60,000 on...
  3. XJ Cherokee Technical Forum
    Hello all! I'm in a tricky situation with my JEEP and I don't know what to do. Basically, I had removed my engine fan about a year ago. The fan mounting was busted and the fan blades were scraping against the belt. So I took it out. Drove all through summer without it. No overheating...
  4. XJ Cherokee Technical Forum
    Ive got a 2000 Cherokee Limited, 4.0L w/coil packs instead of dist. 2xx,xxx miles. It started knocking so I parked it (after listening to morons that had me put thicker oil and yada yada). Motor is at the machine shop and one of the pistons broke and screwed one of the cylinders. Theyre looking...
  5. Jeep CJ Forum
    I have a 1978 cj I installed a remain 360 with all new parts but I have a overheating problem it keeps going 210 and then I cut it off.I put it on a hill to get all the air out but I still having the same problem I did switch out the stock fan and installed a electric fan it comes on with the...
  6. TJ Wrangler Technical Forum
    Hello fellow jeepers! I need some questions answered and some advice. I am putting a lot of thought into installing an LS1 into my jeep. I have been considering this for quite some time now and have done a lot of research on the topic. My heart is pretty set on the LS1 because it's a great high...
  7. KJ Liberty Forum
    I have a 2005 Jeep Liberty Limited. I was driving earlier today and the radio & ac:( would shut off and came back on at first there was quite a bit of time between instances, then it started happening a few times every ten minutes or so. Later in the day, I was parked with the engine running and...
  8. TJ Wrangler Technical Forum
    I really need some help since I have no idea what the problem could be. When I am shift into 2nd gear my jeep will start bucking/jumping like its having trouble getting fuel but I don't know why this would only be in 2nd gear. I don't have any problems when I get up to higher speeds and I...
  9. TJ Wrangler Technical Forum
    I have searched for, and not found, whether or not a 2.5 I4 engine from a 95 will work in my 98 TJ. I have been told it will work, I will just need to change the head and possibly exhaust over for the emmisions to work. Is this the case? Long story short, I have a cracked block in my TJ and...
  10. Jeep CJ Forum
    I'm having my 1986 CJ-7 rebuilt. It has the 4.2 engine. It was a complete engine rebuild and it's smoking from the exhaust. The mechanic has had a lot of experience with jeeps but is at a loss for why. He said that for some reason the spaces on the rings keep getting aligned after it's...
  11. JK Wrangler Technical Forum
    was browsing a salvage site and stumbled upon a 2011 wrangler unlmtd sport that was in a flood, my presumption would be that she needs a new engine. does anybody have a rough ballpark number of what a new complete crated engine would cost? (3.8L 6cyl). BID ENDS TOMORROW PLEASE HELP!!! :cheers2:
  12. JK Wrangler Technical Forum
    So i have a 2008 jeep wrangler with a 6 inch lift and 35in tires that i love to take mudding & crawling. The only problem is its hard to compete with all my Buds and there 383 strokers and small blocks. Im looking into adding some additional horsepower but i don't know how to go about it. I have...
  13. YJ Wrangler Technical Forum
    When its cold it will start it up it run for about 30 seconds but then the RPM's slowly drop and it will quit, despite attempts to press the throttle. We had a nice electronic code reader hooked up to it but it didnt throw any obvious codes. We first replaced the EGR Valve but still nothing...
  14. TJ Wrangler Technical Forum
    I have a 2000 TJ with the 4.0 and a NV3550 trans. I have a little over 100k on it I have been having an engine shudder problem for a while now. i took it to a friends garage but they could not replicate the problem. Here are the symptoms: Sometimes under hard acceleration the engine will...
  15. Engines & Drivetrain
    What's up!! My first post here at JF. Hoping to get more involved in doing my own maintenance, repairs, and upgrades on my Jeep as I'm not too familiar with cars. Anyway, here is the story: Was driving home last night in a storm and the water was as high as the top of my front bumper. This was...
  16. Jeep CJ Forum
    I have a 1985 Cj 7 that im putting a small block 350 in (1984 Chevy). Im having trouble finding a manual transmission for it (wont consider anything but a manual). Does anyone have any suggestions? The old transmission was a 4 speed but I would definitely consider a 5 or 6. Any help at all would...
  17. WK Grand Cherokee & XK Commander Forum
    My 2006 5.7 hemi sputters at start up when the engine is cold. Once I can get it through the sputter and up to about 2.5 rpms, it seems to warms up and begins to run ok. Then it runs as normal. It had an engine code showing misfire. The computer indicated cylinders 2-4-6-8 were misfiring. I...
  18. YJ Wrangler Technical Forum
    Hi everyone, I'm having a problem with my Jeep and am hoping to get some guidance. You guys helped alot last time, so I'm trying again. :-) I just put in a new starter and everything has been working great. Yesterday, however, I had another setback. I've been having some electrical problems for...
  19. YJ Wrangler Technical Forum
    Hello everybody, I have an issue with my Jeep I could use some help with. 1990 2.5L TBI New or done w/in last 2 months: Replaced/tested/verified correct vaccuum line setup Spark plugs, wires, cap and rotor fuel filter 02 Sensor Cat Temp Sensor Thermostat My Heep is hard to start after it...
  20. TJ Wrangler Technical Forum
    I need to know if a 93' 2.5i wrangler engine will fit in a 2000 wrangler? I have found one with 25k on it for a great deal, and I need to replace my 202,000k engine. Thanks
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